Elkay Manufacturing Company is an American-owned and operated manufacturer of stainless steel sinks, faucets, drinking fountains and bottle filling stations, as well as cabinets, drinking fountains and other products for commercial and residential use. The company was founded in 1920 by Leopold Katz and is headquartered in Oak Brook, Illinois. Elkay has manufacturing facilities in the United States, China and Mexico, and employs over 5,000 people worldwide. The company is committed to sustainability and has implemented several initiatives to reduce its environmental impact, including using recycled materials in its products and reducing water usage in its manufacturing processes.