California Water Service Group operates in the Water supply sector. California Water Service Group is a holding company. The Company owns six operating subsidiaries: California Water Service Company (Cal Water), New Mexico Water Service Company (New Mexico Water), Washington Water Service Company (Washington Water), Hawaii Water Service Company, Inc. (Hawaii Water), and CWS Utility Services and HWS Utility Services LLC (CWS Utility Services and HWS Utility Services LLC are referred collectively as Utility Services). Cal Water, New Mexico Water, Washington Water and Hawaii Water are regulated public utilities. The regulated utility entities also provide some non-regulated services. Utility Services provides non-regulated services to private companies and municipalities. The bulk of the Company's business consists of the production, purchase, storage, treatment, testing, distribution and sale of water for domestic, industrial, public and irrigation uses, and for fire protection. In our complete report available for purchase the company is compared to: American States Water Company, Aqua America, Inc. and SJW Corp..