GMS announced the acquisition of Robert N. Karpp Company Inc. based in Boston, Mass. marking GMS’ entry into the attractive New England market.

GMS announced its strategic entrance into the Michigan and Northwest Ohio markets through the acquisition of Gypsum Supply Company.

Gypsum Management and Supply Inc. has expanded its presence in Southern California with the acquisition of Hathaway & Sons.

Gypsum Management and Supply, Inc. has acquired Badgerland Supply and its six locations in Wisconsin and Illinois.