• CimLine

• Concredamp, Div. Durasol Corporation

• Concrete Service Materials Co.

• ConcreteScience International, Inc.

• Conspec

• Corrosion Restoration Technologies

• Cresset Chemical Company

• Cushion Cut

• Dayton Superior Corporation

• Dayton Superior Corporation

• Dayton Superior, Chemical Division

• Delta Industries, Inc.

• Dickinson Ready Mix. Co.

• Dixie Diamond Mfg.

• Dynapac

• E-Bond Epoxies

• E-Poxy Industries

• EDCO-Equipment Development Co.

• Eagle Industries

• Eco-Wares

• Edison Coatings, Inc.

• Electro-Steam Generation Corp.

• Elkin Mfg.

• Elliott Diamond

• Euclid Chemical Company

• Felker Brothers Corporation