Company Profile

California Water Service Group is the parent company of regulated utilities California Water Service, Hawaii Water Service, New Mexico Water Service, and Washington Water Service, along with Texas Water Service, a utility holding company. Together, these companies provide regulated and non-regulated water and wastewater service to more than 2 million people in California, Hawaii, New Mexico, Texas, and Washington.

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June 2024 Investor Presentations

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Industry Classifications


Utilities - Regulated

Water Supply and Irrigation Systems (221310)

Water Supply (4941)

Contact Information

Investor Relations
(408) 367-8200

Company Contact
California Water Service Group
1720 North First Street
San Jose, CA 95112
(800) 750-8200 (toll free)
(408) 367-8200