E'town Corporation, a wholly-owned subsidiary of Thames Water is the parent company of Elizabethtown Water Company, which provides retail water service in 55 municipalities in Hunterdon, Mercer, Middlesex, Morris, Somerset, and Union counties. Thames Water, the water business of RWE, has a presence in 46 countries and currently serves over 50 million people. American Water, a part of RWE's water division, serves 20 million customers in 27 states, 4 Canadian provinces, Puerto Rico, and South America. More than 8,000 employees provide water, wastewater and other related services. RWE's water division is the third largest water and wastewater services company in the world.