American Arbitration Association

American Institute of Architects

American Bar Association

American Council of Engineering Companies

American Public Works Association

American Society of Civil Engineers

The Associated General Contractors of America

Construction Management Association of America

Construction Specifications Institute

Design/Build Institute of America

International Federation of Consulting Engineers

National Society of Professional Engineers

National Utility Contractors Association

Design Professionals Insurance Companies

USDA - Rural Utility Service

Victor O. Schinnerer and Company

Water and Wastewater Equipment Manufacturers Association (WWEMA)

XL Insurance