National Gypsum is one of the largest gypsum wallboard producers in the world. Headquartered in Charlotte, NC, the company is the second largest producer in the United States of gypsum wallboard operating 17 wallboard plants in 16 states.

National Gypsum operates 30 quarry sites that produce  the gypsum that is necessary to manufacture gypsum wallboard.

Tuck Mapping Solutions, Inc. has been providing National Gypsum volumetrics for all of their 30 quarry sites for the past 10 years.