- Irving Materials, Inc. (IMI)
Concrete and aggregate supplier. Headquarters are in Louisville, with offices throughout Indiana, Ohio, Kentucky and Tennessee.
- Ozinga Bros., Inc.
Selling and delivering ready mix concrete.
- Thomas Concrete
Producers of ready mix serving Georgia and the Carolinas.
- Dragon Cement and Concrete
Manufacturers of ready-mix concrete and cement with locations in New England.
- Central Pre-Mix Development Corporation
Holding company whose subsidiary operating companies supply concrete and asphalt to the Northwest.
- R. W. Sidley Inc. (2)
Manufactures ready-mixed concrete and pre-mixed plasters and mortars in the Middle East and Asia.
- Twin City Concrete Products
Supplies packaged concrete, sand, and mortar products for the upper Midwest.
- RMC Industries Corporation
Producer and supplier of construction building products, including ready-mix, concrete products, aggregates, and cement.
- Ready Mix Concrete Nationwide
Network of dealers who supply ready-mixed and precast concrete across the U.S.A.
- Tri-State Materials
Providing ready mix concrete, sand, and gravel to the market areas of Mesquite, NV, Beaver Dam, AZ, and St. George UT.
- Unicon-Beton (1)
- Monroc, Inc
Produces precast concrete components, ready-mix, and sand and gravel. Serving the Western states.