California Water Service Group is a leading provider of water utility and related services across several U.S. states, including California, Washington, New Mexico, Hawaii, and Texas. Founded in 1926 and based in San Jose, California, the company supplies water to nearly half a million customer connections, supporting domestic, industrial, public, irrigation, and fire protection needs. Beyond water distribution, it offers wastewater collection and treatment, operates municipal and private water systems, and leases property for telecommunication antenna sites. The company is committed to delivering high-quality water and services to its diverse customer base.