GMS Inc., also called GMS, is a holding company, which engages in the distribution of wallboard and suspended ceilings systems and complementary interior construction products. It operates through the following segments: Geographic Divisions, Other, and Corporate. Read More The Geographic Divisions segment comprises the Central, Midwest, Northeast, Southern, Southeast, Western, and Canada. The Other segment distributes tools through Tool Source Warehouse, Inc. The Corporate segment includes the corporate office building and support services provided to its subsidiaries. Its products include accessories, acoustical ceilings, drywall, fiberglass reinforced panels, insulation, joint treatment, steel studs, and tools. The company was founded by Richard K. Mueller and Richard A. Whitcomb in 1971 and is headquartered in Tucker, GA.