California Water Service Group

California Water Service Group (CWSG) is an American public utility company providing drinking water and wastewater services. It is the third-largest investor-owned publicly-traded water utility in the United States, serving roughly two million people through its subsidiary companies in California, Hawaii, New Mexico and Washington. CWSG was formed in 1997 as a new holding company for California Water Service to expand into other states regulated by their own public utilities commissions, and into other non-regulated businesses.

California Water Service Group

Company type	Public
Traded as	NYSE: CWT S&P 600 component
Industry	Utilities Water and wastewater
Headquarters	San Jose, California , United States
Products	Water
Revenue	846,431,000 United States dollar (2022)
Subsidiaries	California Water Service Hawaii Water Service New Mexico Water Service Washington Water Service CWS Utility Services HWS Utility Services
Website	calwatergroup.com

Acquisitions

In 1998, CWSGs original subsidiary, California Water Service, made a major expansion into Southern California with the purchase of Dominguez Services Corp. for $53 million, incorporating its subsidiaries Antelope Valley Water Co. and Kern River Valley Water Co. into Cal Water's service districts.

In 2002, CWSG acquired Rio Grande Utility Corporation to form its New Mexico Water Service subsidiary. It subsequently expanded in this region with the acquisitions of National Utility Company, Cypress Gardens Water Users, Independent Utility Company and Indian Hills Water Company.

In 2003, CWSG acquired Ka'anapali Water Corp. on the island of Maui for $8 million to form its Hawaii Water Service subsidiary.