Manufacturers

• Armstrong World Industries
• Centria Architectural Systems
• Dow Chemical Company, Inc.
• Florida Tile Industries, Inc.
• Grace Construction
• Johns Manville Corporation
• Johnson Controls
• Kingspan Group., PLC
• Nucor
• Robert Bosch Tools Corp.
• Rohm and Haas

Contractors & Engineers

• Law Engineering and Environmental Services, Inc.
• Parsons Brinckerhoff
• Bilfinger Berger AG
• Clark Construction
• DPR Construction Inc.
• McCarthy Building Co.
• PCL Enterprises, Inc.
• Roy Anderson Corporation
• Skanska
• Suffolk
• Turner Construction Co., Inc.
• Zachry Construction Corporation
• Baker Concrete
• Granite Construction Co.

Private Equity

• Kohlberg Kravis Roberts & Company
• AEA Investors LLC
• Evergreen Pacific Partners
• Gallagher Enterprises
• Kelso & Company
• Sterling Capital Partners
• Struxture Investors LLC
• Tenaska Capital Management LLC
• Theyer Equity Investors
• KRG Capital Partners LLC

Associations/Trade Organizations

• American Iron & Steel Institute
• Indiana Contractors/Roundtable
• International Union of Bricklayers & Allied Contractors
• National Association of Home Builders
• National Energy Management Institute
• National Ready-Mixed Concrete Association
• Portland Cement Association
• PreCast/Prestressed Concrete Institute
• Union Roofing Contractors Association
• Labor Management Cooperation Initiative

Materials

• CSR Rinker
• Dufferin Aggregates
• Holnam
• Lehigh Portland Cement Company
• Oldcastle Materials Group
• St. Mary's Cement Inc.
• Teichert, Inc.
• Unicom Enterprises