Gypsum Management and Supply, Inc. (GMS) is a leading North American distributor of gypsum wallboard, suspended ceiling systems, and other specialty building products. Founded in 1971, GMS now operates a network of more than 250 distribution centers nationwide. The company's products are used in new residential and commercial construction, as well as in the repair and remodel of existing structures. GMS serves a diverse customer base, including contractors, builders, and retail customers.