Company History Founded in 1886 as the American Water Works & Guarantee Company, American Water has been serving customers and communities for more than 121 years, and is the parent company to our nineteen state subsidiaries. The people of American Water have centuries of combined experience in the water and wastewater industry. The team includes world-renowned researchers who are on the leading edge of scientific study and environmental protection, people who have been with us not only decades, but also for generations, and those who are passionate about environmental stewardship and care. Our crew members and plant operators get up each ...