• L.M. Scofield Co.

• LaHabra

• Lafarge Calcium Aluminates

• MODAC Products Co.

• MacDermot Studio

• Madewell Products Corp.

• Margia Floors

• Master Bond Inc.

• Master Builders, Inc.

• Matthews Paint Co.

• McCormick Paints

• Merkrete Systems

• Metalcrete Industries

• Michigan Industrial Paint Supply, Inc.

• Micor Co.

• Mid-Am Metal Forming, Inc.

• Miracle Sealants & Abrasives Co.

• Monopole Inc.

• Morris & Ritchie Associates, Inc.

• Neptune Coatings

• Neyra Industries

• Niagara Protective Coatings

• O'Leary Paint

• Osmose Wood Preserving

• Outdura /Shuford Mills, Inc.

• Owens Forest Products