Founded in 1993, National Gypsum Company is one of the leading gypsum board producers in the world. It is a privately owned company that provides cement boards. The company offers a range of interior finishing products. It provides products under various brands, such as the ProForm, PermaBase and Easy Finish. National Gypsum Company has achieved GREENGUARD Children & Schools certification. It mines and quarries gypsum in Arizona, Texas, Kansas, Iowa, Michigan and Indiana. The company has a network of more than 15 wallboard plants in North America.