Oakland sits across the bay from San Francisco, anchoring the East Bay with neighborhoods stretching from Jack London Square and Lake Merritt through the Temescal and Rockridge districts up to the Montclair hills. The city's economy centers on the Port of Oakland—one of the busiest container ports on the West Coast—along with healthcare systems like Kaiser Permanente's headquarters, and a growing tech sector that has expanded from neighboring San Francisco and Berkeley. Service areas typically extend from Emeryville and Piedmont through the Fruitvale and Dimond districts to the San Leandro border, with many businesses also covering North Oakland communities near the Berkeley line.