• Gemite Products Inc.

• Gesell Concrete Products

• Gorilla Proof

• Grimm Building Material Co., Inc.

• HMK Stone

• HOFF Enterprises Inc.

• Hal Industries Inc.

• Harris Specialty Chemicals

• Hi-Way Concrete Products

• Hill Brothers Chemical Co.

• Hoover Treated Wood Products

• Hubbell Canada Inc.

• Hydrozo, Inc.

• INSL-X Superior Coating Systems

• Ink Smith Inc.

• Innovative Formulations Inc.

• K-Lath

• Kasten Masonry Sales

• Klean-Strip Division of W.M. Barr & Company

• L & M Construction Chemicals, Inc.

• L.M. Scofield Co.

• LaHabra

• Lambert Corporation of Florida, Inc.

• Lighthouse/VIP Products

• MODAC Products Co.

• Macklanburg-Duncan