LanternDenver & BoulderFitnessFitness & Personal Training

    Best Fitness & Personal Training in Denver & Boulder

    Areas served: Boulder, Denver, Lakewood, Aurora

    54 local businessesRanked by Lantern Score — a measure of reputation and business quality. We don't accept payment for placement.
    Updated April 17, 2026
    Show businesses best for:
    85
    Lantern
    Score
    Centennial, CO
    Serves Centennial, CO and surrounding Denver metro areas
    ★★★★★5.0(287 Google reviews)

    212 Performance Gym is a full-service fitness facility in Centennial offering comprehensive training and recovery services in one premium space. Members enjoy access to top-notch strength training equipment (dedicated upper body wing and leg room), functional training turf, and an extensive recovery lounge featuring barrel sauna, cold plunge pools, infrared sauna, and Normatec compression sleeves. The gym also provides in-house wellness services including massage therapy, acupuncture, and cupping therapy, creating a complete performance and recovery ecosystem that emphasizes both physical and mental well-being.

    Best for: Building Strength
    Ideal clients: Serious fitness enthusiasts, athletes seeking performance optimization, individuals prioritizing recovery and injury prevention, gym members wanting all-in-one fitness and wellness solutions
    What sets them apart
    • Offers barrel sauna, cold plunge pools, infrared sauna, and Normatec compression sleeves alongside in-house massage, acupuncture, and cupping therapy for comprehensive recovery.
    • Features dedicated upper body wing, separate leg room, and performance turf designed specifically for dynamic movement and conditioning workouts.
    • Built on mutual support and camaraderie, the gym emphasizes both physical and mental well-being through an inspiring and welcoming environment.
    Full-Service GymRecovery LoungeStrength TrainingCommunity FitnessWellness Services
    Phone(720) 257-9670
    212 Performance Gym
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver, Colorado
    ★★★★★5.0(286 Google reviews)

    Perseverance is Denver's original independent gym since 2003, specializing in group weight training classes and personal fitness coaching in a community-focused environment. They emphasize building strength, fitness, and health through encouragement and group accountability rather than fad diets or big-box gym models. Their philosophy centers on helping members reach new personal fitness levels through hard work, mutual support, and challenging workouts in an inclusive community setting.

    Best for: Building Strength
    Ideal clients: Community-oriented fitness enthusiasts, group training advocates, strength and weight training focused athletes, people seeking accountability and encouragement
    What sets them apart
    • Operating since 2003, Perseverance is an established local gym that has maintained its independent status and community focus while resisting big-box gym trends.
    • Focuses on group weight training classes that emphasize community accountability and peer encouragement rather than isolated solo workouts.
    • Welcomes all fitness levels and backgrounds, prioritizing an encouraging environment where members support each other in reaching personal fitness goals.
    Group TrainingWeight TrainingCommunity GymStrength TrainingIndependent Gym
    Phone(720) 643-3112
    Websitemybbp.com
    Perseverance
    Updated 4/17/26Learn More →
    85
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    Boulder, CO
    Serves Boulder, Colorado and surrounding areas
    ★★★★★5.0(280 Google reviews)

    Customized Nutrition & Exercise (CNE) is a Boulder-based gym and fitness center specializing in personalized training, nutrition coaching, and supplement guidance to help clients achieve athletic goals—whether cardiovascular fitness, muscle building, or weight loss. Their ACE-certified trainers deliver one-on-one personal training in a semi-private setting, while their nutrition programs begin with body composition analysis and include customized meal planning. The facility also offers top-of-the-line commercial equipment (free weights, HAMMER STRENGTH, cardio machines), 24/7 keycard access for members, and a full supplement shop with equipment recommendations backed by trainer expertise.

    Best for: Weight LossAccountabilityBuilding Strength
    Ideal clients: Serious fitness enthusiasts, athletes seeking personalized coaching, individuals focused on weight loss with nutrition support, clients wanting expert guidance on supplements and home gym equipment
    What sets them apart
    • CNE's trainers are American Council on Exercise (ACE) qualified and have collectively trained over 10,000 individuals, from professional athletes to weight-loss seekers, with personalized guidance in a semi-private atmosphere.
    • Beyond gym access, CNE provides customized nutrition programs starting with body composition analysis and includes personalized meal planning for breakfast, lunch, dinner and snacks—addressing diet as an essential part of the fitness equation.
    • CNE sells home and commercial fitness equipment from trusted brands (Stairmaster, Schwinn, HAMMER STRENGTH, etc.) with specialist consultation; trainers test every piece before recommending it to ensure quality and reliability.
    Personal TrainingNutrition CoachingGym FacilitiesWeight LossStrength Training
    Phone(303) 443-8787
    Customized Nutrition & Exercise Gym
    Updated 4/17/26Learn More →
    85
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    Aurora, CO
    Serves Aurora and Denver metro area
    ★★★★★5.0(259 Google reviews)

    Mach983 CrossFit is an elite CrossFit gym in Aurora serving the Denver metro area with unlimited group classes, one-on-one personal training, teen fitness programs, and open gym access. Led by certified CrossFit coaches, they specialize in teaching proper Olympic weightlifting, gymnastics, and functional fitness movements to athletes of all levels—from complete beginners to experienced competitors. Beyond fitness, Mach983 is the proud home of Forging Youth Resilience (FYR) Denver, a nonprofit providing at-risk youth with structured fitness, nutrition coaching, and mentorship.

    Best for: BeginnersAccountability
    Ideal clients: CrossFit enthusiasts, beginners seeking expert coaching, fitness-focused teens, athletes training for HYROX races, people wanting community-driven fitness
    What sets them apart
    • Staff includes certified CrossFit coaches who provide tailored movement plans, form correction, and programming adjustments in every class to prevent injury and maximize results.
    • Mach983 is the official home of FYR Denver, a nonprofit connecting at-risk youth with fitness, nutrition, and mentorship—a unique community impact that extends beyond typical gym offerings.
    • Every workout is designed for any fitness level with body composition analysis, regular check-ins, and goal-specific programming that adjusts as members progress—ensuring results whether you're a beginner or elite athlete.
    CrossFit GymPersonal TrainingFitness CommunityOlympic WeightliftingGroup Classes
    Phone(720) 664-9112
    Mach983 CrossFit - Aurora, CO
    Updated 4/17/26Learn More →
    85
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    Morrison, CO
    Serves Morrison, Littleton, Lakewood, and Greater Denver Area, Colorado
    ★★★★★5.0(185 Google reviews)

    Prolean Personal Training is a private fitness studio in Morrison serving the greater Denver area, specializing in one-on-one personal training and semi-private training (up to 5 people). They combine customized workout programming with practical nutrition coaching designed for real-life adherence. Their trainers work with clients at all fitness levels to break through plateaus and achieve sustainable results, offering modifications for safety and progress in a modern, well-equipped studio environment.

    Ideal clients: Busy professionals seeking private training, fitness beginners needing personalized coaching, intermediate to advanced lifters wanting customized programming, clients prioritizing privacy and convenience
    What sets them apart
    • 100% dedicated private studio with no membership crowds. Each client receives full attention in a clean, modern space designed for function and comfort.
    • Offers both fully personalized one-on-one training and semi-private sessions (up to 5 people) to balance customization with community motivation.
    • Combines personalized training with practical nutrition coaching that fits real life, not just theoretical ideals.
    Personal TrainingOne-on-One TrainingSemi-Private TrainingFitness CoachingDenver Area
    Phone(303) 381-3174
    Prolean Personal Training
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver metro area, including downtown Denver, Capitol Hill, Cherry Creek, Washington Park, LoDo, RiNo, Highlands, and surrounding neighborhoods
    ★★★★★5.0(180 Google reviews)

    Shape Plus Denver is a premium personal training gym offering customized one-on-one coaching, nutrition guidance, and structured programming through their proprietary MMAP® system. Located at their original Denver facility, they serve professionals, athletes, parents, and fitness beginners with expert personal trainers, private training environments, and data-driven accountability built over 20+ years in Denver. Beyond personal training, Shape Plus provides nutrition coaching, online training options, and small-group sessions designed for lasting strength, body recomposition, and confidence.

    Best for: AccountabilityFlexible Schedules
    Ideal clients: Denver professionals and busy parents seeking lasting results, fitness beginners and returning athletes needing customized guidance, clients wanting both strength building and fat loss, individuals prioritizing accountability and structured programming
    What sets them apart
    • Shape Plus was founded in Denver and refined their training systems and coaching standards at this original location over two decades, now used nationwide.
    • Their Massive Multiple Action Plan combines customized training, nutrition, lifestyle alignment, and weekly feedback loops specifically designed for your goals and real life.
    • Clean, professional gym designed for distraction-free training with experienced on-site personal trainers providing real accountability and progress tracking.
    Personal TrainingNutrition CoachingFitness CoachingPrivate GymDenver Trainers
    Phone(303) 726-8279
    Shape Plus - Yuma Ct
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves South Denver, CO and surrounding neighborhoods including Platt Park, Arapahoe Acres, University, and College View
    ★★★★★5.0(179 Google reviews)

    Core Progression Elite Personal Training is a full-service fitness facility in South Denver specializing in personalized one-on-one and semi-private training, weight loss programs, and strength conditioning. Their science-based Core Progression Training System combines biomechanics analysis, endurance building, strength training, and power development with nutrition coaching, chiropractic recovery services, and InBody composition scans. The facility caters to all fitness levels and demographics with a supportive, welcoming atmosphere and state-of-the-art equipment, offering customized plans rather than generic group fitness.

    Best for: Weight LossAccountabilityBuilding StrengthFlexible Schedules
    Ideal clients: Fitness newcomers seeking personalized guidance, post-partum clients returning to fitness, strength training enthusiasts, weight loss seekers, busy professionals needing customized nutrition and training plans
    What sets them apart
    • Beyond personal training, Core Progression integrates nutrition planning, chiropractic recovery services, InBody composition scans, and mindfulness coaching to address total body wellness—mind, spirit, and body.
    • The Core Progression Training System uses biomechanics analysis and systematic progression through endurance, strength, and power training phases, customized to each individual's movement patterns and goals.
    • The South Denver location features cutting-edge equipment, locker rooms with showers, and a welcoming environment designed to support clients of all ages and fitness levels.
    Personal TrainingStrength TrainingWeight LossFitness FacilityWellness
    Phone(720) 727-6892
    Core Progression Elite Personal Training - S Broadway
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver, Colorado
    ★★★★★5.0(167 Google reviews)

    Fit Collective Denver is a RiNo-based fitness studio offering Strength, HIIT, Barre, and Yoga classes for all fitness levels in a modern, supportive environment. Their certified instructors provide personalized coaching and alternative movements in each class, whether in-studio or virtually. The studio features specialized four-layer flooring designed to protect joints and maintains high cleanliness standards.

    Best for: Building Strength
    Ideal clients: Fitness enthusiasts seeking variety, all fitness levels, people interested in group fitness classes, yoga practitioners
    What sets them apart
    • Four-layer flooring designed to absorb impact and protect joints during workouts.
    • Combines Strength, HIIT, Barre, and Yoga in one studio to balance cardiovascular, strength, and flexibility training.
    • Certified instructors provide tailored guidance and alternative movements for all fitness levels in every class.
    Group Fitness ClassesYogaHIITBarreStrength Training
    Phone(720) 696-0337
    Fit Collective Denver
    Updated 4/17/26Learn More →
    85
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    Englewood, CO
    Serves Englewood, Denver metro area
    ★★★★★5.0(158 Google reviews)

    ATO Fitness is a full-service gym and fitness center in Englewood offering personalized and group training programs led by nationally accredited trainers. They specialize in one-on-one personal training tailored to individual goals, high-intensity group fitness classes (FIT classes), semi-private group training, and an online training community for remote athletes. ATO Fitness emphasizes creating a supportive, tight-knit community with no contracts, no initiation fees, and a free week trial to help members find their fitness tribe.

    Best for: BeginnersAccountabilityFlexible Schedules
    Ideal clients: Fitness enthusiasts seeking personalized coaching, busy professionals needing flexible training options, athletes looking for community support, beginners at all fitness levels
    What sets them apart
    • ATO Fitness employs nationally accredited personal trainers who design customized workout programs tailored to each client's specific health and fitness goals.
    • Members can join commitment-free and take advantage of a complimentary trial week to experience the gym and community before making a decision.
    • Whether seeking one-on-one coaching, high-intensity group classes, semi-private training, or online accountability, ATO Fitness provides flexible programs to fit different schedules and preferences.
    Personal TrainingGroup Fitness ClassesHIIT ClassesCommunity-FocusedNo Contracts
    Phone(719) 650-9102
    ATO Fitness
    Updated 4/17/26Learn More →
    85
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    Boulder, CO
    Serves Boulder and surrounding areas
    ★★★★★5.0(154 Google reviews)

    Uplift Boulder is a full-service fitness facility in Boulder offering personal training, group fitness classes, and gym access. Their experienced trainers provide one-on-one coaching tailored to individual goals, while the studio also hosts various group classes for members seeking community-based workouts. The facility combines personalized attention with a supportive fitness environment.

    Best for: Accountability
    Ideal clients: Individuals seeking personalized fitness coaching, Group fitness enthusiasts, People new to fitness, Those with specific training goals
    What sets them apart
    • Specializes in personalized training programs designed by experienced trainers to meet individual fitness goals and needs.
    • Combines personal training with group fitness classes, creating a supportive environment for members at all fitness levels.
    Personal TrainingGroup FitnessGymBoulder FitnessHealth & Wellness
    Phone(303) 395-1600
    Uplift Boulder
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver, CO and surrounding areas
    ★★★★★5.0(145 Google reviews)

    Push Gym is a locally owned fitness and wellness facility in Denver combining weight training, circuit training, and physical therapy. Owner Marty Lavine leads a team offering 28+ small group circuit classes weekly, personalized one-on-one personal training, and physical therapy services for injury recovery. They emphasize whole-body strength development, evidence-based nutrition coaching, and a real-life approach to health—avoiding fad diets and corporate gym standardization since 2004.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: Athletes recovering from injury, fitness enthusiasts seeking circuit training, individuals wanting personalized strength coaching, people seeking integrated physical therapy and fitness
    What sets them apart
    • Combines circuit training classes and personal training with licensed physical therapy services, allowing clients to recover from injury while building strength in one facility.
    • Independent gym founded by owner Marty Lavine that operates without corporate guidelines, allowing trainers to innovate and customize programming beyond standard HIIT protocols.
    • Offers evidence-based nutrition guidance and mindful eating habits coaching as part of their wellness approach—no meal plans or supplements sold, just real-world dietary support.
    Circuit TrainingPersonal TrainingPhysical TherapyGroup FitnessStrength Training
    Phone(303) 903-8174
    Push Gym
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver, CO and surrounding areas
    ★★★★★5.0(139 Google reviews)

    Scott Beall Fit is a private personal training studio in Denver specializing in fitness coaching for women, particularly those 40 and older. Founded by Scott Beall, the studio offers one-on-one personal training through their Strong Life Program, designed to build strength, boost energy, and increase confidence. They focus on helping clients optimize their health and transform their fitness through expert coaching and personalized fitness plans.

    Ideal clients: Women 40+, busy professionals seeking personalized fitness coaching, individuals wanting to build strength and confidence
    What sets them apart
    • Specifically designed programming for women over 40, addressing unique fitness needs like energy, strength, and confidence at this life stage.
    • Exclusive private personal training studio model ensures personalized attention and customized programming for each client's goals.
    • Potential clients can schedule a complimentary consultation with a coach to discuss goals and experience the studio's approach before committing.
    Personal TrainingWomen's FitnessStrength TrainingDenver GymPrivate Studio
    Phone(720) 807-4646
    Scott Beall Fit
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver and Louisville, CO
    ★★★★★5.0(136 Google reviews)

    Mighty Movement is a youth and adult strength training gym in Denver specializing in science-backed, technique-focused coaching for kids (grades K-12) and adults. Founded on the principle of safety through custom weight prescription, small class sizes (6:1 ratio), and expert coaching, they offer structured strength training programs designed to build foundational lifting skills, boost confidence, and develop lifelong fitness habits in a non-intimidating environment. They also offer summer camps and specialized programming for various skill levels.

    Best for: Building Strength
    Ideal clients: Children and teens seeking to build strength and confidence in a supportive environment, parents wanting their kids to develop lifelong fitness habits, young athletes looking to gain a competitive edge and reduce injury risk, neurodivergent or anxious youth who need patient coaching and small group settings, adults seeking technique-focused strength training
    What sets them apart
    • Every weight is individually prescribed for each child using a proven formula, ensuring they lift the precise amount to safely build strength without injury risk.
    • Beginner classes maintain a 6:1 student-to-teacher ratio with close supervision at all times, providing loads of individual instruction in a non-competitive environment.
    • Offers structured strength training from kindergarten through adulthood, with beginner entry programs (Little Lifters, Learn to Lift) designed to teach foundational movements like squat, deadlift, and bench press with proper technique.
    Youth Strength TrainingKids FitnessAdult Strength TrainingTechnique-Focused CoachingSummer Camps
    Phone(720) 575-3380
    Mighty Movement
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver and surrounding metro areas
    ★★★★★5.0(131 Google reviews)

    F45 Training Central Park CO is a functional group fitness studio offering 80+ dynamic workouts with 5,000+ movements designed for all fitness levels. Led by certified trainers including Athletics Director Scott Thompson, this studio combines the effectiveness of personal training with the community support of group classes. Members praise the expert coaching, positive environment, and transformative results—from weight loss to strength gains to improved mental health—with HSA/FSA eligibility available.

    Best for: Building Strength
    Ideal clients: People seeking structured group fitness with expert coaching, those wanting community support for fitness goals, individuals with busy schedules looking for efficient workouts, anyone interested in functional strength training
    What sets them apart
    • Classes deliver the attention and guidance of a certified personal trainer in a team setting, with staff including a Global Athletics Director and specialized recovery director ensuring proper form and progression.
    • 80+ unique workouts with 5,000+ dynamic movements keep classes fresh and challenging, preventing plateaus and boredom.
    • Members consistently highlight the supportive, family-like atmosphere and positive energy from both trainers and fellow members as a key reason for staying committed.
    Functional FitnessGroup ClassesTeam TrainingStrength & ConditioningCommunity Fitness
    Phone(720) 819-2492
    F45 Training Central Park CO
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver metro area, with primary service in Sunnyside and surrounding Denver neighborhoods
    ★★★★★5.0(120 Google reviews)

    Garage 1880 is a boutique personal training studio in Denver's Sunnyside neighborhood specializing in one-on-one coaching and nutrition guidance. Their trainers focus on individualized programming built around each client's life, preferences, and goals—rejecting cookie-cutter plans in favor of sustainable, long-term habit building. They also offer nutrition coaching to complement training with practical, real-world eating strategies, and can design customized workouts for clients training at home or while traveling.

    Best for: BeginnersAccountability
    Ideal clients: Busy professionals seeking sustainable fitness habits, clients wanting personalized one-on-one coaching, individuals interested in combining training with nutrition guidance, people tired of cookie-cutter gym programs
    What sets them apart
    • Every client receives custom programming tailored to their lifestyle, schedule, and goals—no standardized plans or extreme methods. Trainers design workouts that work whether you're in the gym, at home, or traveling.
    • Nutrition coaches work alongside personal trainers to build sustainable eating habits focused on practical strategies rather than crash diets or restrictive approaches.
    • Well-equipped gym space with a welcoming, positive environment designed to support long-term commitment to fitness and wellness.
    Personal TrainingNutrition CoachingOne-on-One TrainingSustainable Fitness
    Phone(720) 745-6158
    Garage 1880
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver (RiNo Art District) and Bailey, Colorado
    ★★★★★5.0(120 Google reviews)

    Fight Gravity Fitness is a private personal training studio in Denver's RiNo Art District and Bailey, Colorado, offering one-on-one personalized training with experienced coaches in a distraction-free environment. They specialize in strength building, weight loss, injury recovery, and functional fitness tailored to individual goals, with flexible scheduling designed to fit busy lifestyles. The studio provides top-notch equipment, ample parking, and free introductory sessions to help clients build lasting fitness habits.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: Busy professionals, weight loss seekers, injury recovery clients, fitness beginners, strength training enthusiasts, mountain residents
    What sets them apart
    • Distraction-free, personalized sessions with expert coaches who focus entirely on your specific goals and needs, unlike crowded group fitness environments.
    • Urban studio in Denver's RiNo Art District with ample parking, plus a serene mountain setting in Bailey for flexible training options.
    • New clients can experience the studio and training approach at no cost with a complimentary session to ensure it's the right fit.
    Private Personal TrainingOne-On-One CoachingStrength TrainingWeight LossDenver Fitness
    Phone(303) 351-2846
    Fight Gravity Fitness - Personal Training Studio
    Updated 4/17/26Learn More →
    85
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    Greenwood Village, CO
    Serves Greenwood Village, Denver Tech Center, and surrounding Denver metro areas
    ★★★★★5.0(117 Google reviews)

    Solid Fitness Training is a privately owned personal training studio in Greenwood Village specializing in injury-free fitness coaching. Founded by Joshua Conn, the studio combines personal training with physiotherapy and massage services, focusing on helping clients move better and feel better through customized assessments and programming. They specialize in injury prevention and recovery, pain management, mobility improvement, weight management, sports performance, and pelvic floor dysfunction support for women—making them ideal for anyone recovering from injury, managing chronic pain, or seeking performance-focused training.

    Ideal clients: People recovering from injury, those with chronic pain or mobility issues, postpartum women, athletes seeking performance optimization, anyone with desk-related aches
    What sets them apart
    • The studio specializes in movement assessment and customized programming designed to prevent injury and support recovery, with particular expertise in pelvic floor dysfunction and postpartum training.
    • Owner Joshua Conn leads personalized sessions with detailed movement assessments, ensuring each client receives individualized attention and a training plan tailored to their specific needs and goals.
    • Combines personal training with physiotherapy and massage services to address movement dysfunction, pain management, and recovery in one integrated studio setting.
    Personal TrainingInjury RecoveryPhysical TherapyPelvic FloorDenver Tech Center
    Phone(720) 291-1696
    Solid Fitness Training
    Updated 4/17/26Learn More →
    85
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    Greenwood Village, CO
    Serves Greenwood Village, Denver metro area
    ★★★★★5.0(117 Google reviews)

    Shape Plus is a personal training studio in Greenwood Village offering one-on-one and group fitness classes led by certified trainers. They specialize in personalized workout programs designed to help clients achieve their fitness goals through strength training, conditioning, and nutrition guidance. With a focus on individualized attention and proven results, Shape Plus combines expert coaching with a supportive community environment.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Fitness beginners seeking personalized guidance, athletes looking to improve performance, busy professionals needing structured training programs, individuals with specific health or weight loss goals
    What sets them apart
    • All trainers are certified professionals who create customized workout programs tailored to individual fitness levels and goals.
    • Clients can choose between personalized one-on-one sessions or participate in group fitness classes for community-driven motivation.
    • Personal trainers provide nutrition coaching alongside fitness programs to support comprehensive health and wellness goals.
    Personal TrainingFitness ClassesStrength TrainingCertified TrainersGym
    Phone(720) 724-8375
    Shape Plus - S Clinton St A
    Updated 4/17/26Learn More →
    85
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    Lakewood, CO
    Serves Lakewood, CO and surrounding areas
    ★★★★★5.0(115 Google reviews)

    Catalyst Fitness is a specialized gym in Lakewood offering personalized training through semi-private coaching, one-on-one sessions, and group classes—all tailored for busy adults over 40. Founded by Corey Slinkard and led by a team including an in-house physical therapist, they combine customized strength-building programs with small-group motivation and community support. Their signature approach uses progress journals and expert coaching to deliver measurable, lasting results without the impersonal feel of big-box gyms.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: Adults over 40 seeking strength training, busy professionals looking for accountability and community, fitness beginners returning to exercise, people wanting personalized coaching in a small-group setting
    What sets them apart
    • Combines personalized one-on-one coaching with small-group motivation, offering the benefits of personal training at a lower cost than traditional one-on-one sessions.
    • Tara Loveland, the gym's in-house physical therapist, ensures safe, effective training and helps modify exercises for individual needs and limitations.
    • Every member receives a personalized workout journal to track improvements over time, providing measurable accountability and clear visibility into their fitness journey.
    Semi-Private TrainingPersonal TrainingStrength TrainingAdults Over 40Lakewood Gym
    Phone(303) 955-6897
    Catalyst Fitness - Gym / Semi-Private Training / Personal Training
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver and surrounding areas, City Park neighborhood
    ★★★★★5.0(110 Google reviews)

    Base6 Fitness is a locally owned functional fitness studio in Denver's City Park neighborhood offering HIIT, strength training, and yoga classes designed around longevity and functional movement. Led by experienced coaches, they focus on developing the six peaks of fitness—strength, agility, power, endurance, mobility, and skill—while building community and providing members with the knowledge to live long, functional lives. Beyond group classes, they offer personal training, open gym access, heart rate monitoring, physical assessments, monthly skills clinics, and adventure days.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: People seeking functional fitness for longevity, Group fitness enthusiasts, Strength and mobility seekers, Those wanting community-driven coaching
    What sets them apart
    • Classes are specifically designed around six peaks of fitness to build strength and mobility for long-term functional living, not just short-term calorie burn.
    • Knowledgeable coaches provide personal guidance and movement instruction across HIIT, strength, and yoga to help members crush their goals safely and effectively.
    • Studio features premium equipment, heart rate monitoring, tech displays for movement form, and physical assessments to track progress.
    Functional FitnessHIIT ClassesStrength TrainingYogaLongevity-Focused
    Phone(303) 945-4563
    Base6 Fitness
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver, CO and surrounding metro areas
    ★★★★★5.0(106 Google reviews)

    Summit Fitness is a Denver-based fitness consulting and training service dedicated to helping clients achieve their health and wellness goals through personalized fitness programming. The gym offers professional coaching, customized workout plans, and nutritional guidance tailored to individual needs and fitness levels. Summit Fitness specializes in making fitness accessible and sustainable for long-term results.

    Best for: Accountability
    Ideal clients: Individuals seeking personalized fitness coaching, people looking to transform their fitness habits, clients wanting nutrition guidance alongside training
    What sets them apart
    • Each client receives customized workout and nutrition plans designed specifically for their fitness level, goals, and lifestyle.
    • Certified trainers provide expert guidance and accountability to help clients stay committed to their fitness journey.
    Personal TrainingFitness CoachingWellness ProgramsDenver Gym
    Phone(720) 441-4140
    Summit Fitness
    Updated 4/17/26Learn More →
    85
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    Denver, CO
    Serves Denver, CO and surrounding areas
    ★★★★★5.0(105 Google reviews)

    Michael Moody Fitness is a Denver-based personal training studio specializing in one-on-one coaching and customized fitness programs. Owner Michael Moody works directly with clients to create personalized training plans focused on strength, conditioning, and sustainable results. The studio emphasizes individualized attention and tailored programming rather than group classes, making it ideal for clients seeking dedicated coach support and accountability.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Individuals seeking dedicated one-on-one coaching, clients with specific fitness goals, people who value accountability and personalized attention
    What sets them apart
    • Michael Moody personally trains clients, providing direct access to the owner's expertise and ensuring consistent, high-quality coaching.
    • Each client receives a personalized training plan tailored to their specific goals, fitness level, and needs rather than generic group workout templates.
    Personal TrainingStrength TrainingFitness CoachingOne-on-One Training
    Phone(773) 484-8094
    Michael Moody Fitness
    Updated 4/17/26Learn More →
    85
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    Lakewood, CO
    Serves Lakewood and surrounding Denver metro area
    ★★★★★5.0(92 Google reviews)

    F45 Training Green Mountain is a functional group fitness studio in Lakewood offering dynamic 45-minute team training classes with 80+ different workouts featuring 5,000+ movements. Led by owner Chris and coached by certified personal trainers, the studio combines the effectiveness of personal training with the energy and community of group fitness, designing workouts for every fitness level. Members praise the supportive coaches, inclusive atmosphere, and proven results in strength, endurance, and overall wellness.

    Best for: Accountability
    Ideal clients: Fitness enthusiasts seeking community-based training, busy professionals wanting efficient 45-minute workouts, athletes training for specific sports, post-injury recovery clients, beginners returning to fitness after time away
    What sets them apart
    • Each class has two certified personal trainers on the floor providing form corrections, modifications, and individualized attention during 45-minute functional fitness workouts.
    • With over 80 different class formats and 5,000+ dynamic movements, no two workouts are identical, preventing plateaus and keeping training fresh and engaging.
    • F45 Training Green Mountain accepts HSA and FSA reimbursement, making memberships more accessible and affordable for eligible participants.
    Functional FitnessGroup TrainingTeam WorkoutsStrength & CardioCommunity-Focused
    Phone(720) 594-0124
    F45 Training Green Mountain
    Updated 4/17/26Learn More →
    84
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    Denver, CO
    Serves Denver, Colorado and surrounding areas
    ★★★★★5.0(86 Google reviews)

    Commit Fitness is a full-service gym and personal training studio located in Denver's Wash Park neighborhood, offering state-of-the-art equipment, group fitness classes, and one-on-one personal training with certified coaches. The facility caters to all fitness levels, from beginners to advanced athletes, with a focus on personalized programming and community support. Whether you're looking to build strength, improve cardiovascular fitness, or transform your health, Commit Fitness combines modern amenities with expert coaching.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Fitness beginners seeking guidance, individuals wanting personalized training programs, group fitness enthusiasts, health-conscious professionals in the Wash Park area
    What sets them apart
    • Offer individualized coaching and custom programming designed around your specific fitness goals and fitness level.
    • Diverse class offerings provide structured workouts in a supportive community environment, from strength to cardio-based programming.
    • Convenient, accessible gym in one of Denver's most desirable neighborhoods with modern facilities and welcoming atmosphere.
    Personal TrainingGroup FitnessStrength TrainingGym MembershipFitness Community
    Phone(303) 827-9828
    Commit Fitness – Gym & Personal Training | Wash Park Denver
    Updated 4/17/26Learn More →
    84
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    Aurora, CO
    Serves Aurora and surrounding Denver metro area
    ★★★★★5.0(84 Google reviews)

    F45 Training Southlands is a boutique fitness studio in Aurora offering 45-minute functional training workouts designed for all fitness levels. Their science-backed training programs combine cardio, strength, and resistance exercises in small group classes led by certified coaches. F45 focuses on efficient, results-driven workouts that fit busy schedules while building community through supportive group training.

    Ideal clients: Busy professionals, fitness enthusiasts seeking group training, people new to structured workouts, anyone looking for time-efficient functional training
    What sets them apart
    • Classes are scientifically designed 45-minute sessions combining cardio, strength, and resistance training to maximize results in minimal time.
    • All classes are led by certified fitness professionals who provide modifications and guidance for all fitness levels.
    • Intimate group classes foster community support and accountability while maintaining personalized attention from coaches.
    Functional TrainingGroup FitnessHIIT WorkoutsAll Fitness Levels
    Phone(720) 666-7582
    F45 Training Southlands CO
    Updated 4/17/26Learn More →
    84
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    Score
    Boulder, CO
    Serves Boulder and surrounding areas
    ★★★★★5.0(78 Google reviews)

    Alpine Training Center is a strength and conditioning facility in Boulder specializing in training for mountain athletes and outdoor enthusiasts. They offer personalized coaching, group fitness classes, and sport-specific programming designed to build the strength, power, and endurance needed for climbing, skiing, trail running, and other mountain activities. Their expert trainers focus on functional fitness and injury prevention for active individuals.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Mountain athletes, climbers, skiers, trail runners, outdoor enthusiasts seeking sport-specific training
    What sets them apart
    • Tailored programming specifically designed for climbers, skiers, trail runners, and other mountain sports enthusiasts rather than general fitness.
    • Experienced trainers who understand the demands of outdoor activities and create sport-specific strength and conditioning plans.
    Strength TrainingMountain AthletesPersonal CoachingGroup ClassesBoulder Gym
    Phone(303) 859-4579
    Alpine Training Center
    Updated 4/17/26Learn More →
    84
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    Score
    Boulder, CO
    Serves Boulder, CO and surrounding areas
    ★★★★★5.0(71 Google reviews)

    Boulder Athletics is a community-focused gym in Boulder offering group fitness classes in strength training and conditioning, plus private one-on-one personal training for members. Their 60-minute classes combine warm-ups, primary lifts, accessory work, and either strength or conditioning finishers—all scaled to individual fitness levels. They emphasize an inclusive, welcoming atmosphere that serves fitness enthusiasts of all ages and abilities, from complete beginners to advanced athletes.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: Beginners looking for a welcoming gym environment, fitness enthusiasts seeking barbell strength training, people recovering from injury or mobility issues, athletes of all ages wanting community support
    What sets them apart
    • New members can attend their first class completely free with no commitment or sales pitch required—giving prospective members a genuine risk-free trial of the gym and coaching style.
    • All 60-minute classes automatically scale to each person's fitness level, allowing beginners and experienced lifters to work out together safely and effectively in the same session.
    • Deliberately welcoming to all ages, backgrounds, and fitness levels—intentionally avoiding 'bro culture' to create a supportive environment where members feel like family.
    Strength TrainingGroup Fitness ClassesPersonal TrainingCommunity Gym
    Phone(303) 632-6407
    Boulder Athletics
    Updated 4/17/26Learn More →
    84
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    Boulder, CO
    Serves Boulder, Colorado and surrounding areas
    ★★★★★5.0(61 Google reviews)

    Kinesis Integrated is a Boulder-based strength training gym and app founded by Chris Lee, specializing in scientifically-backed strength training for endurance athletes—runners, cyclists, and triathletes. They offer personalized in-person coaching at their Boulder gym, a guided mobile app for individual athletes, and a coach platform for teams and organizations. Known for working with Olympic athletes and elite endurance sports professionals, Kinesis combines detailed movement assessment, injury prevention, and sport-specific programming to help athletes of all levels build strength that translates directly to endurance performance.

    Best for: AccountabilityFlexible Schedules
    Ideal clients: Competitive and recreational runners, triathletes, and cyclists; injured endurance athletes seeking injury prevention; serious amateur athletes wanting professional-level strength programming
    What sets them apart
    • Unlike typical gym strength training, Kinesis focuses exclusively on programming for runners, cyclists, and triathletes—designing programs that enhance endurance performance and prevent common overuse injuries rather than just building maximum strength.
    • Founded and led by Chris Lee, the gym has coached Olympic athletes and elite endurance professionals, developing cutting-edge methodologies proven at the highest competitive levels.
    • Members can train in-person at the Boulder gym with personalized coaching or use the guided Kinesis app for remote programming, providing flexibility alongside hands-on assessment and form coaching.
    Strength TrainingEndurance AthletesPersonalized CoachingInjury PreventionApp-Based Training
    Phone(973) 294-9262
    Kinesis Integrated Performance
    Updated 4/17/26Learn More →
    84
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    Score
    Denver, CO
    Serves Downtown Denver and surrounding areas
    ★★★★★4.9(429 Google reviews)

    THE Athletic Club is an upscale fitness and wellness center in downtown Denver offering personal training, group classes, and full gym facilities under one roof. With 30+ years of expertise, they feature handpicked personal trainers, cutting-edge equipment, and recovery amenities designed to help members maximize their fitness potential. Their philosophy centers on training with intention and building a community focused on achieving transformative results.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Serious fitness enthusiasts, professionals seeking premium training, people wanting personalized coaching, those seeking holistic wellness under one roof
    What sets them apart
    • Handpicked trainers provide elite, personalized coaching using cutting-edge techniques with a focus on attention, dedication, and connection to results.
    • Combines training facilities with recovery amenities in one upscale location, designed to support the complete fitness and wellness journey.
    • Three decades of industry experience and commitment to delivering an upscale, premium fitness experience to every member.
    Personal TrainingFitness CenterWellnessDowntown DenverGym
    Phone(303) 214-4312
    THE Athletic Club
    Updated 4/17/26Learn More →
    84
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    Score
    Lakewood, CO
    Serves Lakewood, CO and surrounding areas
    ★★★★★5.0(59 Google reviews)

    CrossFit Clout & Gym is a 14-year-old community fitness facility in Lakewood offering CrossFit classes, personal training, and open gym access. They specialize in high-intensity functional fitness combining weightlifting, cardio, and gymnastics with workouts scalable for all fitness levels. Known for their supportive community environment and personalized coaching, they welcome beginners and experienced athletes alike with free trial classes and flexible membership options.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: Beginners starting a fitness journey, CrossFit enthusiasts, people seeking community-based accountability, strength and conditioning athletes
    What sets them apart
    • Established fitness facility deeply rooted in the Lakewood community with a focus on long-term member success and health promotion.
    • All workouts are designed with universal scalability, allowing beginners and advanced athletes to train together safely at their own intensity level.
    • Knowledgeable personal trainers provide guidance tailored to individual fitness goals, with ongoing support from staff and community members throughout your fitness journey.
    CrossFitPersonal TrainingFunctional FitnessCommunity GymStrength Training
    Phone(303) 301-0362
    Crossfit Clout & Clout GYm
    Updated 4/17/26Learn More →
    84
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    Golden, CO
    Serves Golden, CO and surrounding areas
    ★★★★★5.0(58 Google reviews)

    Four Horsman Fitness is a Golden-based gym and fitness studio specializing in corrective exercise, mobility training, strength conditioning, and endurance work. Founded on four core pillars—mobility, endurance, strength, and corrective exercise—they offer one-on-one personal training, small group classes, and at-home programming tailored to all fitness levels. They also provide corporate wellness programs designed to improve employee health, reduce aches, enhance posture, and increase movement both on-site and in-studio.

    Best for: BeginnersAccountability
    Ideal clients: Individuals seeking corrective exercise and mobility work, people recovering from injury or postural issues, corporate teams looking to improve employee wellness, strength training enthusiasts
    What sets them apart
    • Built on mobility, endurance, strength, and corrective exercise—a comprehensive framework addressing whole-body fitness and injury prevention.
    • Personalized training with emphasis on form, progression, and helping clients achieve fitness goals they never thought possible.
    • On-site and in-studio bootcamps and corrective sessions designed to boost employee health, productivity, and workplace wellness.
    Personal TrainingCorrective ExerciseMobility TrainingStrength TrainingCorporate Wellness
    Phone(574) 312-5171
    Four Horsman Fitness
    Updated 4/17/26Learn More →
    84
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    Score
    Boulder, CO
    Serves Boulder, CO and surrounding areas
    ★★★★★4.9(193 Google reviews)

    Orangetheory Fitness is a group fitness studio offering science-based interval training workouts that combine cardio, strength, and rowing in 60-minute classes. Members wear heart rate monitors to track performance metrics and optimize their zone training. The Boulder location provides unlimited class access with flexible membership options and a 30-day risk-free guarantee, welcoming both new and experienced fitness enthusiasts.

    Ideal clients: Fitness enthusiasts seeking structured interval training, people looking to improve cardiovascular health, group fitness lovers, members wanting measurable workout results
    What sets them apart
    • Orangetheory uses personalized heart rate monitoring and zone-based training methodology recognized by the American Heart Association, helping members meet national activity guidelines.
    • Multiple membership tiers available with a 30-day risk-free guarantee, founding member rates, and promotional pricing to fit different fitness schedules and budgets.
    • Real-time heart rate monitoring and performance metrics help members track progress and optimize their workout intensity across every class.
    Interval TrainingGroup Fitness ClassesHeart Rate TrainingHIIT WorkoutsFitness Studio
    Phone(303) 530-9663
    Orangetheory Fitness
    Updated 4/17/26Learn More →
    83
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    Denver, CO
    Serves Denver and surrounding metro areas, Colorado
    ★★★★★4.9(180 Google reviews)

    Rocky Mountain Flex Fitness is Denver's premier gym and fitness center offering a comprehensive range of services including strength training, cardio classes, personal training, weight management coaching, and rehab/injury prevention. Located in the Denver Art District, they feature top-tier equipment, multiple certified personal trainers, and group fitness classes including yoga and kickboxing. The gym also hosts partnered services including physical therapy specialists (pelvic floor and sports medicine), martial arts instruction (Muay Thai and Brazilian Jiu-Jitsu), and an on-site coffee roaster, creating a complete fitness and wellness community.

    Best for: Weight LossAccountabilityBuilding Strength
    Ideal clients: Fitness enthusiasts seeking personalized coaching, athletes and weightlifters, individuals recovering from injury or managing chronic pain, martial arts practitioners
    What sets them apart
    • Features licensed physical therapists (including pelvic floor and sports medicine specialists) and martial arts instructors on-site, offering integrated rehab, injury prevention, and cross-training options beyond typical gym memberships.
    • Known for top-quality equipment, weightlifter-friendly facilities, and a strong community atmosphere with military discounts and member-exclusive partnerships with local coffee roasters.
    • Members can train independently with 24/7 access or work with certified coaches on customized programs; free 7-day trial available for new members.
    Personal TrainingGroup Fitness ClassesStrength TrainingWeight ManagementCommunity Gym
    Phone(720) 550-6347
    Websitermflex.com
    Rocky Mountain Flex Fitness
    Updated 4/17/26Learn More →
    83
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    Boulder, CO
    Serves Boulder, Colorado
    ★★★★★4.9(179 Google reviews)

    CrossFit Sanitas is Boulder's premier fitness gym offering 50+ weekly classes including CrossFit, Strength, Endurance, Olympic Lifting, and Women's Strength—all coached and tailored to individual fitness levels. Beyond group classes, they provide comprehensive wellness services including onsite physical therapy, nutrition coaching, massage therapy, cold plunge, sauna, and InBody scans. Founded in 2016 and known for their science-backed programming, experienced coaching staff, and supportive community, Sanitas welcomes beginners through advanced athletes seeking a holistic approach to long-term health and performance.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: CrossFit enthusiasts, fitness beginners seeking supportive coaching, athletes focused on strength and conditioning, individuals pursuing holistic wellness with recovery support
    What sets them apart
    • Offers physical therapy, cold plunge, sauna, massage therapy, and nutrition coaching all at one facility to support long-term health and performance.
    • Diverse programming including CrossFit, Functional Strength, Endurance, Olympic Lifting, and Women's Strength ensures options for all fitness levels and goals.
    • Every class is coached and scaled to individual fitness levels, with free 15-minute intros to match new members with the right program for their goals.
    CrossFitGroup Fitness ClassesStrength TrainingNutrition CoachingRecovery Services
    CrossFit Sanitas
    Updated 4/17/26Learn More →
    83
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    Aurora, CO
    Serves Aurora and surrounding Denver metro communities
    ★★★★★4.9(169 Google reviews)

    Orangetheory Fitness in Aurora is a science-based fitness studio specializing in heart-rate monitored group classes that combine cardio, strength training, and recovery. Members wear real-time heart rate monitors during 55-minute sessions designed to maximize calorie burn and improve cardiovascular fitness through a proven workout methodology. The studio offers personalized fitness coaching within a supportive group class environment.

    Best for: Building Strength
    Ideal clients: Fitness enthusiasts seeking data-driven group fitness, members who respond well to real-time performance metrics, people wanting community-based cardio and strength training
    What sets them apart
    • Classes use real-time heart rate monitoring technology to track workout intensity and results, allowing members to see exactly how their body responds to exercise.
    • Science-backed workout program combining cardio, strength training, and recovery intervals in 55-minute sessions designed for measurable fitness improvements.
    Heart-Rate TrainingGroup Fitness ClassesCardio & StrengthFitness Studio
    Phone(720) 791-3003
    Orangetheory Fitness
    Updated 4/17/26Learn More →
    83
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    Boulder, CO
    Serves Boulder, CO and surrounding Denver metro areas
    ★★★★★4.9(155 Google reviews)

    Club Pilates Boulder is a reformer-based Pilates studio offering fusion classes for all ages and fitness levels. Led by owners Kelly & Joe Hendricks, the studio features state-of-the-art equipment including Reformers, Exo Chairs, Springboards, TRX, and Barre, with classes ranging from foundational Level 1 through advanced Level 2.5 progressions. They offer signature classes like Reformer Flow, Cardio Sculpt, and Control, plus specialized options like Suspend, Restore, and Teen classes, with complimentary intro sessions available for first-time visitors.

    Ideal clients: Beginners exploring Pilates, fitness enthusiasts seeking low-impact cardio, people improving strength and flexibility, those wanting structured progression in their practice
    What sets them apart
    • Structured progression from Level 1 Foundations through Level 2.5 Mastery ensures both beginners and advanced practitioners find appropriate classes that build skills systematically.
    • Studio features state-of-the-art Reformers, Exo Chairs, Springboards, TRX, and Barre equipment, enabling varied full-body workouts that reduce repetition and engage different muscle groups.
    • Complimentary 30-minute reformer classes with certified instructors (500+ hours training) allow new members to experience the practice and studio before committing.
    Reformer PilatesGroup Fitness ClassesLow-Impact CardioAll Fitness Levels
    Phone(720) 675-9435
    Club Pilates - Baseline Rd
    Updated 4/17/26Learn More →
    83
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    Denver, CO
    Serves Denver and surrounding neighborhoods including Capitol Hill, Cherry Creek, City Park, LoHi, RiNo, Washington Park, Highlands
    ★★★★★4.9(137 Google reviews)

    Green Door Fitness is a boutique gym in Capitol Hill where every member works directly with a NASM-certified personal trainer during every visit—no solo workouts. They offer one-on-one personal training, small group fitness classes (max 12 people), strength training programs, weight loss plans with nutrition coaching, senior fitness, and athletic training for sports conditioning. Owner Matthew Dray and his team of certified trainers provide customized, progressive programs with flexible membership options starting at $199 for a 28-day pass.

    Ideal clients: Fitness beginners seeking guidance, weight loss seekers with nutrition support, seniors wanting age-appropriate training, athletes training for specific sports, anyone preferring personalized attention over traditional gyms
    What sets them apart
    • All members work with a NASM-certified personal trainer during each session—no unsupervised workouts. This boutique model ensures personalized attention and progressive programming.
    • Group fitness classes capped at 12 people, providing individualized coaching that larger gyms cannot match.
    • Members access personal training, group classes, nutrition coaching, strength programs, weight loss plans, and specialty training (senior fitness, athletic conditioning) all with the same certified team.
    Personal TrainingGroup ClassesStrength TrainingNutrition CoachingBoutique Gym
    Phone(720) 541-7163
    Green Door Fitness
    Updated 4/17/26Learn More →
    83
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    Boulder, CO
    Serves Boulder County, CO
    ★★★★★5.0(45 Google reviews)

    Perpetual Movement Fitness is Boulder County's leading in-home personal training team, founded on the principle that movement is endless and people are always changing. Led by founder JP, they use a proprietary assessment process to create customized training programs focused on helping clients move well, reduce pain, increase range of motion, and prevent injuries. Rather than pushing grueling training schedules, PMF partners with clients to find sustainable approaches that work for their individual goals and lifestyle.

    Ideal clients: Injury recovery clients, people seeking sustainable fitness habits, individuals preferring private in-home training, athletes looking to prevent re-injury
    What sets them apart
    • Perpetual Movement Fitness brings personalized training directly to clients' homes, eliminating commute time and creating a comfortable, private training environment tailored to each individual's space and needs.
    • The team uses clinical skills and movement expertise to help clients get out of pain, restore range of motion, and build strength to prevent future injuries—often recommended by physical therapists.
    • Rather than demanding extreme training frequency, PMF collaborates with clients to design realistic, maintainable fitness plans that fit their life while delivering real results.
    In-Home Personal TrainingCustomized ProgramsMovement SpecialistInjury PreventionBoulder County
    Phone(317) 385-8066
    Perpetual Movement Fitness
    Updated 4/17/26Learn More →
    83
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    Aurora, CO
    Serves Aurora and surrounding Denver metro areas
    ★★★★★4.9(117 Google reviews)

    CrossFit Crush is a fitness center in Aurora specializing in CrossFit training, functional fitness, and high-intensity workout programs. They offer group classes designed for all fitness levels, from beginners to advanced athletes, with a focus on community-driven training and personalized coaching. Their experienced instructors provide guidance on proper form and progression to help members achieve their fitness goals safely and effectively.

    Ideal clients: Fitness enthusiasts seeking community-based training, individuals new to CrossFit, athletes looking to improve strength and conditioning, people motivated by group fitness environments
    What sets them apart
    • CrossFit Crush emphasizes a supportive community atmosphere where members train together and motivate each other to reach their fitness goals.
    • Classes are designed to accommodate beginners through advanced athletes, with scaling options and personalized coaching to ensure proper form and progression.
    • Their programs focus on practical, full-body movements that improve strength, endurance, and overall athletic performance.
    CrossFitFunctional FitnessGroup ClassesHigh-Intensity TrainingCommunity Fitness
    Phone(720) 765-5221
    CrossFit Crush
    Updated 4/17/26Learn More →
    83
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    Lakewood, CO
    Serves Lakewood, CO and surrounding Denver metro areas
    ★★★★★4.9(101 Google reviews)

    Flexing Personal Training in Lakewood offers personalized fitness coaching designed to help clients achieve their health and strength goals. Their certified trainers provide one-on-one training sessions tailored to individual needs, fitness levels, and objectives. With a focus on sustainable results and professional guidance, they serve clients seeking to build strength, improve fitness, and transform their health through customized workout programs.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Individuals seeking personalized fitness guidance, those new to strength training, clients with specific fitness goals, people wanting form correction and accountability
    What sets them apart
    • Flexing Personal Training employs certified fitness professionals who design customized workout programs based on each client's specific goals, fitness level, and health considerations.
    • All training is delivered as personalized sessions, ensuring direct attention, form correction, and real-time program adjustments to maximize results and prevent injury.
    Personal TrainingFitness CoachingStrength TrainingOne-on-One Sessions
    Phone(720) 309-5422
    Flexing Personal Training
    Updated 4/17/26Learn More →
    83
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    Denver, CO
    Serves Denver, CO and surrounding areas
    ★★★★★4.9(96 Google reviews)

    F45 Training West Highland is a functional group fitness studio offering dynamic, science-based workouts designed for all fitness levels. Located in Denver's West Highland neighborhood, they provide team training classes with certified trainer guidance, featuring over 80 different workouts and 5,000+ movements. The studio emphasizes community-driven fitness with personalized attention, combining the effectiveness of one-on-one personal training with the energy and motivation of group classes.

    Best for: Building Strength
    Ideal clients: Fitness enthusiasts seeking community-driven training, people looking for varied functional fitness workouts, individuals new to group fitness, those wanting trainer guidance without one-on-one costs
    What sets them apart
    • F45 combines the expertise and personalized attention of one-on-one personal training with the energy and community of group fitness classes, rather than traditional gym-style workouts.
    • With over 80 different workouts and 5,000+ dynamic movements, classes are constantly rotated to prevent plateaus and keep members challenged and engaged.
    • Members can submit their F45 memberships for reimbursement through Health Savings Accounts or Flexible Spending Accounts, making fitness more accessible.
    Functional FitnessGroup ClassesTeam TrainingAll Fitness Levels
    Phone(303) 285-4239
    F45 Training West Highland
    Updated 4/17/26Learn More →
    83
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    Boulder, CO
    Serves Boulder, CO and surrounding communities including Superior, Niwot, Old North Boulder, Newlands, and Wonderland Hills
    ★★★★★4.9(91 Google reviews)

    Core Progression Elite Personal Training is a boutique fitness center in Boulder specializing in one-on-one personal training, semi-private training, strength training, weight loss programs, athletic training, and online nutrition coaching. Led by certified fitness professionals, they use their proprietary Core Progression Training System—which emphasizes biomechanics, endurance, strength, and power—to deliver customized fitness plans tailored to each client's goals. Unlike large corporate gyms, they prioritize individualized attention and quality service in a state-of-the-art facility.

    Best for: Weight LossAccountabilityBuilding StrengthFlexible Schedules
    Ideal clients: Individuals seeking personalized strength training, clients focused on weight loss with professional guidance, athletes needing sport-specific conditioning, busy professionals wanting efficient online or semi-private options
    What sets them apart
    • Proprietary structured approach focusing on biomechanics, endurance, strength, and power progression to deliver measurable results and prevent injury.
    • Intentionally limits membership to ensure individualized service and direct attention from degree-certified trainers, avoiding the overcrowded corporate gym experience.
    • Combines one-on-one personal training, semi-private sessions, recovery services, online training, and nutrition coaching to address complete fitness and wellness needs.
    Personal TrainingStrength TrainingWeight LossAthletic TrainingFitness Center
    Phone(720) 712-7432
    Core Progression Elite Personal Training
    Updated 4/17/26Learn More →
    83
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    Denver, CO
    Serves Denver, Colorado and surrounding areas
    ★★★★★4.9(83 Google reviews)

    Core Progression Elite Personal Training at Julian Street offers personalized fitness coaching in Denver's Sloan's Lake neighborhood. Their team of certified trainers specializes in one-on-one personal training, helping clients achieve strength, conditioning, and body composition goals through customized programming. They focus on sustainable fitness results through proper form, progressive programming, and nutritional guidance.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Individuals seeking personalized fitness coaching, those new to strength training, busy professionals wanting customized programs
    What sets them apart
    • Staff of qualified fitness professionals who design customized workout programs based on individual goals, fitness level, and body type.
    • Convenient Julian Street location in Denver's Sloan's Lake neighborhood, accessible to the broader metro area.
    • Emphasis on progressive strength training, proper form, and sustainable conditioning results rather than quick-fix approaches.
    Personal TrainingStrength TrainingFitness CoachingOne-on-One Training
    Phone(720) 730-8246
    Core Progression Elite Personal Training - Julian St
    Updated 4/17/26Learn More →
    83
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    Lakewood, CO
    Serves Lakewood and surrounding Denver metro areas
    ★★★★★4.9(77 Google reviews)

    Pure Barre Belmar is a boutique fitness studio in Lakewood offering low-impact, high-intensity barre classes inspired by yoga, Pilates, and ballet. Owner Kristen and her highly-trained instructors lead four signature class formats—Classic, Align, Empower, and Define—each designed for total-body strength, flexibility, and toning. The studio welcomes all fitness levels and emphasizes community and transformation through their proprietary barre technique.

    Ideal clients: Fitness enthusiasts seeking low-impact strength training, women and men wanting functional fitness combined with flexibility, group class participants who value community
    What sets them apart
    • Pure Barre Belmar offers Classic, Align, Empower, and Define classes, each targeting different fitness goals from strength-building to high-intensity cardio fusion and flexibility training.
    • Classes are designed for any fitness level with a supportive community atmosphere, plus a free trial class available to new members.
    • Studio owner Kristen leads the Belmar location with highly-trained instructors who provide personalized instruction in small-group settings.
    Barre ClassesGroup FitnessLow-Impact WorkoutsFull-Body StrengthCommunity Fitness
    Phone(303) 928-9849
    Pure Barre
    Updated 4/17/26Learn More →
    83
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    Boulder, CO
    Serves Boulder and surrounding areas
    ★★★★★5.0(34 Google reviews)

    Koa Fit is a personal training studio in Boulder specializing in customized fitness programs that prioritize proper form, injury prevention, and sustainable strength building. Founded on the philosophy of identifying core imbalances and building progressive programs tailored to each client's goals and body, they offer one-on-one personal training, small group lifting classes for women and men, and FRC Mobility classes for joint health. Beyond structured training, Koa Fit emphasizes community through monthly free and low-cost events, believing that connection and community health are essential to overall wellness.

    Best for: AccountabilityBuilding Strength
    Ideal clients: People recovering from injury or looking to prevent it, Clients seeking personalized strength-building programs, Those wanting small-group fitness with accountability, Anyone prioritizing proper form and sustainable fitness
    What sets them apart
    • Each program is designed around the individual client's goals, history, and body mechanics. Koa Fit obsesses over proper form to build strength while avoiding injury.
    • Trainers identify structural imbalances in the body and build focused, progressive programs to address them, not just generic workout plans.
    • Free or low-cost monthly community events for members and their families, reflecting the studio's belief that social connection is as important as physical training.
    Personal TrainingGroup FitnessStrength TrainingMobility ClassesCommunity Focused
    Phone(720) 428-8863
    Koa Fit
    Updated 4/17/26Learn More →
    82
    Lantern
    Score
    Denver, CO
    Serves Denver, Colorado, and surrounding areas including northern Colorado and southern Wyoming
    ★★★★★4.9(69 Google reviews)

    Hustle Denver is a sports performance training facility founded by Coach Tanya Vassar-Grooms (MS, CSCS) that specializes in elite athletic development for youth and high school athletes. They offer personalized one-on-one training, competitive group track and field programming through Hustle Track Club, strength and speed coaching, nutrition support, and college recruiting guidance—all delivered by Division 1-caliber coaches. Since 2019, they've produced 30+ state champions, helped 70+ athletes earn college scholarships totaling $1.1M+, and serve athletes from across Colorado and Wyoming seeking serious performance advancement.

    Best for: Accountability
    Ideal clients: Serious high school track and field athletes, youth athletes seeking college recruitment guidance, competitive runners and jumpers, families investing in athletic development and scholarship opportunities
    What sets them apart
    • Led by Coach Tanya Vassar-Grooms (MS, CSCS, SCSC) with a staff of certified strength coaches and sports performance specialists who deliver personalized training based on each athlete's unique needs.
    • 70+ athletes placed into college programs with over $1.1M in scholarships earned, plus direct coaching support to help athletes secure opportunities at the next level.
    • Hustle Track Club offers elite training with competitive winter and summer seasons, plus ongoing coaching support throughout the high school season with specialized events (sprints, jumps, throws, distance, hurdles).
    Track and FieldAthletic TrainingSports PerformanceYouth CoachingCollege Recruiting
    Phone(307) 286-4511
    Hustle Denver
    Updated 4/17/26Learn More →
    82
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    Boulder, CO
    Serves Boulder, CO and surrounding areas
    ★★★★★5.0(29 Google reviews)

    Future Proof Movement in Boulder specializes in fitness and longevity training designed to optimize healthspan and performance throughout life. They offer personalized coaching through one-on-one personal training, small group sessions, and online programs, with a focus on recovery, mobility, fitness, and performance. Their integrated approach combines biofeedback, breathwork, and tissue release techniques to help clients overcome pain and setbacks while maximizing results.

    Best for: BeginnersAccountabilityFlexible Schedules
    Ideal clients: Active professionals seeking longevity training, clients recovering from injury or pain, individuals wanting personalized fitness guidance, remote clients seeking online coaching
    What sets them apart
    • Specializes in fitness training designed for lifetime optimization, not just short-term goals, with emphasis on recovery and mobility.
    • Combines personal training with biofeedback, breathwork, and tissue release techniques to address pain and maximize performance.
    • Offers in-person one-on-one training, small group sessions, and comprehensive online programs to fit different lifestyles.
    Personal TrainingLongevity CoachingRecovery & MobilityOnline FitnessBoulder
    Phone(720) 541-7406
    Future Proof Movement
    Updated 4/17/26Learn More →
    82
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    Denver, CO
    Serves Denver, Colorado, particularly Santa Fe Arts District and surrounding neighborhoods
    ★★★★★5.0(29 Google reviews)

    Proper Fitness is a premier personal training studio in Denver's Santa Fe Arts District offering one-on-one personal training, semi-private training sessions, and personalized nutrition coaching. Founded on a data-driven approach, they create custom fitness programs tailored to each client's goals, lifestyle, and starting point, with intentional coaching focused on building lasting strength, performance improvements, and sustainable habits. Their integrated app keeps clients connected to workouts, progress tracking, and coach communication between sessions.

    Best for: Accountability
    Ideal clients: Busy professionals seeking lasting fitness results, people wanting personalized coaching over generic gym programs, clients interested in combining training with nutrition guidance
    What sets them apart
    • Uses objective fitness data and performance metrics to guide training programs and track measurable progress over time.
    • Combines personal training with personalized nutrition guidance to support clients' fitness goals through diet and lifestyle changes.
    • Proprietary app keeps clients connected to workout plans, progress tracking, and direct coach communication outside of studio sessions.
    Personal TrainingNutrition CoachingData-Driven FitnessSemi-Private ClassesFitness Coaching
    Phone(720) 634-4075
    Proper Fitness
    Updated 4/17/26Learn More →
    82
    Lantern
    Score
    Boulder, CO
    Serves Boulder and surrounding areas
    ★★★★★5.0(29 Google reviews)

    Discover Strength in Boulder delivers science-backed strength training through 30-minute workouts twice per week with certified Exercise Physiologists holding degrees in exercise science. They offer both 1-on-1 personal training ($65/session) and small group training ($42/session), plus virtual training options, all designed for maximum results in minimum time. Their evidence-based approach is tailored to individual goals and includes progress assessments throughout your fitness journey.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: Busy professionals seeking efficient strength training, people recovering from injuries or managing medical conditions, fitness enthusiasts wanting science-based programming, teenagers and families looking for expert personal training
    What sets them apart
    • All trainers hold degrees in exercise science and are certified exercise physiologists, ensuring expert-level instruction backed by credentials.
    • Workouts are designed using peer-reviewed scientific research to deliver the safest and most effective results in just 30 minutes twice weekly.
    • Partnerships with Truemed allow clients to use health savings and flexible spending account dollars toward training sessions.
    Strength TrainingPersonal TrainingExercise PhysiologistsEfficient WorkoutsScience-Based
    Phone(720) 782-1558
    Discover Strength
    Updated 4/17/26Learn More →
    82
    Lantern
    Score
    Denver, CO
    Serves Denver, Colorado
    ★★★★★5.0(28 Google reviews)

    Custom Fit Colorado is a Denver-based fitness studio offering personalized one-on-one personal training and nutrition coaching designed for sustainable long-term health. Owner Jason Williams brings 18+ years of experience as one of Denver's top trainers, holding a bachelor's degree in Exercise Science from Cornell College and multiple national certifications. The studio specializes in individualized fitness plans, proper form instruction, and integrated nutrition guidance to help clients of all ages and backgrounds achieve their goals.

    Ideal clients: Adults seeking personalized one-on-one training, nutrition coaching, fitness goal-setting, clients of all ages and fitness levels
    What sets them apart
    • Owner Jason Williams is one of Denver's top trainers with over 18 years in the fitness industry, including 6 years training elite clients in Los Angeles and 20,000+ completed sessions.
    • The studio combines personalized training with nutrition coaching to create a comprehensive approach to sustainable lifestyle change, not just temporary fitness goals.
    • Jason holds a bachelor's degree in Exercise Science from Cornell College and multiple national certifications, ensuring clients receive education-backed coaching tailored to proper form and sustainable habits.
    Personal TrainingNutrition CoachingFitness CoachingOne-on-One Training
    Phone(319) 721-1954
    Custom Fit Colorado - Congress Park
    Updated 4/17/26Learn More →
    82
    Lantern
    Score
    Denver, CO
    Serves Denver, CO and surrounding areas
    ★★★★★4.8(224 Google reviews)

    Core Progression Elite Personal Training in Denver's RiNo neighborhood offers personalized fitness coaching and group classes designed to help clients achieve their strength and conditioning goals. Their team of experienced trainers specializes in one-on-one personal training programs tailored to individual fitness levels and objectives. With a focus on progressive training methods and community support, Core Progression Elite combines expert coaching with a welcoming gym environment.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Fitness enthusiasts seeking personalized coaching, those new to structured strength training, busy professionals wanting efficient workouts
    What sets them apart
    • Experienced trainers create customized workout programs based on individual fitness levels, goals, and needs.
    • Conveniently located in Denver's vibrant RiNo Arts District with easy access and modern training facilities.
    • Specializes in progressive strength training methods to help clients build muscle and improve overall fitness.
    Personal TrainingStrength TrainingGroup FitnessDenver RiNo
    Phone(720) 792-8968
    Core Progression Elite Personal Training - Larimer St
    Updated 4/17/26Learn More →
    82
    Lantern
    Score
    Arvada, CO
    Serves Arvada and surrounding Denver metro communities
    ★★★★★4.8(192 Google reviews)

    Core Progression Elite Personal Training is a fitness center in Arvada specializing in personalized one-on-one training programs designed to help clients achieve their specific fitness goals. Their certified trainers work with clients across all fitness levels to create customized strength, conditioning, and weight loss programs. The facility combines expert coaching with a supportive community environment to deliver results-driven fitness solutions.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Fitness enthusiasts seeking personalized coaching, individuals committed to weight loss, athletes improving strength and conditioning, clients recovering from injury
    What sets them apart
    • Core Progression employs certified fitness professionals who create fully customized training programs tailored to each client's individual goals and fitness level.
    • Unlike group fitness classes, every session is individually designed and coached, allowing trainers to adjust workouts in real time based on client performance and feedback.
    • Programs incorporate strength training, conditioning, and weight loss strategies to address multiple fitness goals within a single comprehensive plan.
    Personal TrainingFitness CenterStrength TrainingWeight LossOne-on-One Coaching
    Phone(720) 806-6443
    Core Progression Elite Personal Training - Yukon St
    Updated 4/17/26Learn More →
    82
    Lantern
    Score
    Denver, CO
    Serves Denver, Colorado
    ★★★★★4.8(188 Google reviews)

    Feed Your Soul Fitness is a women-owned Denver gym and strength training studio offering small group classes (capped at 6 participants), large group fitness classes, one-on-one personal training, and personalized nutrition coaching. Founded on principles of sustainable progress and community support, they specialize in strength-focused fitness with expert coaches guiding clients through proper form and technique. The studio creates an inclusive, supportive environment where members build real strength, improve nutrition habits, and develop lasting confidence alongside a caring community.

    Best for: BeginnersAccountabilityBuilding Strength
    Ideal clients: Women seeking strength training, fitness beginners returning to exercise, people wanting sustainable nutrition guidance, community-focused gym members
    What sets them apart
    • Pure Strength classes are intentionally capped at 6 participants per session, ensuring personalized attention and proper form coaching from experienced trainers.
    • In-house clinical nutritionist Ashley (MS in Nutrition and Integrative Health) provides personalized nutrition coaching, audits, and 6-16 week sustainable programs designed to complement strength training goals.
    • Built as a supportive space for women with early morning (5:30 AM) and evening (6:30 PM) classes, community events like the Feed Your Soul Turkey Trot, and ongoing accountability-based coaching.
    Strength TrainingWomen-OwnedNutrition CoachingSmall Group ClassesPersonal Training
    Phone(720) 806-6410
    Feed Your Soul Fitness
    Updated 4/17/26Learn More →
    82
    Lantern
    Score
    Denver, CO
    Serves Denver, CO and surrounding areas
    ★★★★★5.0(27 Google reviews)

    Kylie DeShazo Personal Training offers one-on-one fitness coaching in Denver, specializing in personalized workout programs tailored to individual goals and fitness levels. Kylie works directly with clients to build strength, improve endurance, and achieve sustainable results through customized training plans. With a focus on personalized attention and proven results, this independent trainer helps clients of all backgrounds transform their fitness and build lasting healthy habits.

    Best for: AccountabilityBuilding Strength
    Ideal clients: Busy professionals seeking personalized fitness coaching, individuals wanting strength training guidance, clients ready for one-on-one accountability
    What sets them apart
    • Every program is personalized based on your specific fitness goals, experience level, and preferences—not cookie-cutter routines.
    • As an independent trainer, Kylie works directly with you to adjust programs in real-time and ensure you're progressing toward your goals.
    Personal TrainingFitness CoachingStrength TrainingOne-on-One Training
    Phone(918) 331-7880
    Kylie DeShazo Personal Training
    Updated 4/17/26Learn More →
    This directory of fitness & personal training local businesses serving Denver & Boulder, is maintained by Lantern. Rankings are determined by the Lantern Score — not advertising or payment for placement. Learn how it works. Last updated April 17, 2026. To claim or update a listing, contact us.