Dumoulin & Associates, 4624 Rue Louis-B-Mayer, Laval, Québec H7P 6E4, CA

Foundation and retaining wall construction, Nonresidential construction, nec, nec, Igneus rock, crushed and broken-quarrying

Graymont is a family-owned company that is committed to responsibly meeting society's needs for mineral products. The company is one of the largest producers of lime in North America with facilities throughout Canada and the United States and a partnership with Grupo Calidra, the largest lime producer in Mexico. Graymont's principal products include quicklime, hydrated lime, precipitated calcium carbonate, limestone, construction stone, ready-mix concrete, Redi-Rock retaining walls and asphalt. Graymont is headquartered in Bellingham, Wash., and has an additional location in Plattsburgh, N.Y.