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California Water Service Company (Cal Water) is the largest subsidiary of the California Water Service Group. Cal Water is the largest investor-owned American water utility west of the Mississippi River and the third largest in the country. Formed in 1926, the San Jose-based company serves more than 472,000 customers through 28 Customer and Operations Centers throughout the state.
Trekk Equipment Group is a Pacific, MO-based company in the Energy and Utilities sector.
Summerland Sanitary District is a Summerland, CA-based company in the Energy and Utilities sector.
Carr Research Laboratory is a Wellesley, MA-based company in the Energy and Utilities sector.
Culligan works to provide better water for our customers in their homes, offices, restaurants, and industrial facilities around the world. Our complete line of water softeners, water filtration systems, commercial and industrial water treatment solutions, drinking water systems, whole-house filtration systems and bottled water delivery set the standard in the water treatment industry. Culligan was established in 1936 as provider of water softening solutions for residences, and has since grown to becoming a worldwide leader in water treatment needs, from the simplest filtration system to complex industrial water solutions.