Newsweek Names California Water Service Group One of “America’s Greatest Companies”

SAN JOSE, Calif., Sept. 01, 2026 (GLOBE NEWSWIRE) — For its leadership and performance across multiple fields, California Water Service Group (Group) (NYSE: CWT) has earned a spot on Newsweek’s 2026 list of “America’s Greatest Companies.” The ranking recognizes the top 650 public companies in the United States with at least 1,000 employees and $75 million in 2025 revenue, and is based on financial leadership, innovation, performance as an employer, and sustainability performance.

Group is the sole water utility on this year’s list, developed by Newsweek in partnership with statistics portal and industry ranking provider Plant-A Insights Group and data provider Aniline. The analysis included a large-scale, confidential survey among employees from U.S. companies, with more than 2.7 million reviews collected from over 179,000 employees. It also considered data from prior studies between 2022 and 2024, which included more than 4.9 million reviews from 400,000 employees. Additionally, the study utilized information from the Securities and Exchange Commission and the U.S. Patent and Trademark Office, and analyzed more than 120 employment-related key performance indicators, media coverage, and environmental assessments from multiple third-party sources.

“Our mantra at California Water Service Group has long been to ‘do the right thing’ to protect and support our customers, communities, employees, and stockholders,” said Marty Kropelnicki, Group Chairman & CEO. “This ranking is particularly meaningful to us in that it considers important factors affecting all of these groups, and we appreciate Newsweek for honoring us as one of America’s Greatest Companies.”

The full list is available at rankings.newsweek.com/americas-greatest-companies-2026.

About California Water Service Group

California Water Service Group is the largest regulated water utility in the western United States. It provides high-quality, reliable water and/or wastewater services to more than 2.2 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, TWSC Inc. (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 www.calwatergroup.com.

MEDIA CONTACT: Yvonne Kingman, (310) 257-1434