Crane your neck upwards and you might see this company's products. GMS is a North American distributor of wallboard and suspended ceilings systems that mostly caters to interior contractors. Its product lineup also includes complementary interior construction products such as ready mix-joint compounds, insulation components, tools, and safety products used in commercial and residential buildings. It serves a customer base of more than 20,000 contractors and home builders. Since its founding in 1971, GMS has expanded its business from a single location to more than 185 branches spanning 41 US states. In mid-2016, the company launched an IPO.