Drywall Maine | The Premier Drywall Company in The ...
National Gypsum Company was founded in 1925 by Melvin H. Baker, Joseph F. Haggerty, and Clarence E. Williams, and has grown to be one of the seven largest gypsum board producers in the world which hold approximately 81% of the worldwide wallboard market (Georgia Pacific, Knauf, Lafarge, National Gypsum, Saint-Gobain, U.S. Gypsum and Yoshino ...