California Water Service Group
- Employees in region:
- 403
- Sector:
- Utilities & Telecommunications
- HQ location:
- San Jose, CA
’12

California Water Service Group is the third largest investor-owned water utility in the United States. We have six wholly owned subsidiaries operating in California, Washington, New Mexico, and Hawaii. Four of the six subsidiaries are regulated by state public utilities commissions. Non-regulated operations leverage our expertise in operating water and wastewater systems and provide related water and wastewater utility services. Formed in 1926 and based in San Jose, we serve more than 490,000 customers. We have more than $400 million in annual revenue and more than $1.5 billion in gross utility plant assets.
California Water Service Company is the largest subsidiary of the California Water Service Group, which also includes Washington Water Service Company, New Mexico Water Service Company, Hawaii Water Service Company, CWS Utility Services, and HWS Utility Services. As a whole, the Group provides high-quality regulated and non-regulated utility services to approximately 2 million people in 100 communities. Company-wide, our employees share a commitment to being the leader in providing our customers and communities with traditional and innovative utility services.
“Both the employees and management work together as a team. I also like that CWS has a great reputation in the community.”
“I am given the opportunity to participate in projects outside of my general duties, thus improving my involvement and experience in this industry.”
“I love my job because of the culture of understanding and liberty to speak with managers on any issues of concern without impediment or fear of what might be thought. ”
“The stability of the company, the work environment and the benefits.”
“I feel that CWS continues to strive to do a good job taking care of its customers, provide high quality water and keep the company in the forefront.”
“He makes you feel special as an individual, and I love how he is involved with the employees and all company functions.”
“It shows they are actually concerned about the employees' health, happiness, family and we enjoy our jobs.”