California Water Service Group Celebrates a Century of Building “Trust on Tap”

SAN JOSE, Calif., Jan. 26, 2026 (GLOBE NEWSWIRE) -- California Water Service Group (NYSE: CWT) turns 100 years old this year, and it will commemorate the milestone with a year-long celebration of its legacy that is the foundation for future success.

“Throughout our history, we have shown resilience, ingenuity, and commitment, overcoming challenges time and time again to provide our customers a safe, reliable water supply,” said Chairman and Chief Executive Officer Martin A. Kropelnicki. “We are a purpose-driven company, and it is our commitment to service that will take us into the next 100 years.”

Founded in 1926 by three World War I veterans, the Company that initially served four California communities now serves more than 2.1 million people in hundreds of communities in California, Hawaii, New Mexico, Texas, and Washington. It is the third largest publicly traded water utility in the United States and the largest regulated public water utility west of the Mississippi River.

“It is an honor of a lifetime to celebrate what many companies never achieve—our centennial anniversary,” Kropelnicki said.

To learn more about Group’s storied history, visit 100years.calwatergroup.com.

About California Water Service Group

California Water Service Group (NYSE: CWT) is the largest regulated water utility in the western United States. It provides high-quality, reliable water and/or wastewater services to more than 2.1 million people in California, Hawaii, New Mexico, Washington, and Texas through its regulated subsidiaries, California Water Service, Hawaii Water Service, New Mexico Water Service, and Washington Water Service, and its utility holding company, Texas Water Service. This year, the company commemorates a century of service.

Group’s purpose is to enhance the quality of life for customers, communities, employees, and stockholders. To do so, it invests responsibly in water and wastewater infrastructure, sustainability initiatives, and community well-being. The company’s nearly 1,300 employees live by a set of strong core values and share a commitment to protecting the planet, caring for people, and operating with the utmost integrity. The company has been named one of “America’s Most Responsible Companies” and the “World’s Most Trustworthy Companies” by Newsweek, a USA Top Workplace, and a Great Place to Work^®. More information is available at .

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Yvonne Kingman, (310) 257-1434