California Water Service Company

1720 North First St.
San Jose, California 95112
United States View Map >>

P: (408) 367-8200
F: (408) 367-8430
California Water Service Company (Cal Water) is the largest investor-owned American water utility west of the Mississippi River and the second largest in the country. Formed in 1926, the San Jose-based company serves 500,000 customers through 28 Customer and Operations Centers throughout the state. Cal Water is the largest subsidiary of the Calif... more

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Russell 3000

Products & Services

cws utility services


Water & Water Treatment, Waste Treatment, Environmental Services & Recycling

Stock Market


SIC Codes

4941, 4971, 6719


221310, 551112

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