Located in Gray, Ga., Martin Marietta Aggregates is one of the largest producers of construction aggregates in the United States. The company supplies crushed stone, sand and gravel used to build the roads, sidewalks and foundations. In addition, Martin Marietta Aggregates provides asphalt and concrete in select geographic areas. The company has more than 285 quarries and distribution facilities in approximately 28 states, the Bahamas and Nova Scotia. In 2008, The Safety Excellence Awards Program honored Martin Marietta Aggregates with first place.

Website: martinmarietta.com

Phone: (478) 986-3105

Cross Streets: Near the intersection of Pitts Chapel Rd and Cumslo Rd/GA Highway 49