The Riverside Company, a private equity firm, completed the acquisition of Granite Garage Floors, a franchise company that provides garage floor coatings for residential and commercial customers. Financial terms were not disclosed. “GGF represents an attractive opportunity to expand the business into garages – a complementary area to Threshold’s existing concepts that further extends its reach across areas of the home. This business benefits from high margins and attractive economics, which are important factors for our franchise partners," Loren Schlachet, Riverside Managing Partner.