NAHB is a Washington, DC-based trade association representing more than 220,000 residential home building and remodeling industry members. Known as "the voice of the housing industry," NAHB is affiliated with more than 800 state and local home builders associations around the country.

The Building Industry Association of Southern California (BIA/SC) is a nonprofit trade association representing more than 2,100 member companies with over 200,000 employees. Its mission is to promote and protect the industry to ensure our members' success in providing homes for all Southern Californians.

The U.S. Green Building Council (USGBC) is the nation's foremost coalition of leaders from every sector of the building industry working to promote buildings that are environmentally responsible, profitable and healthy places to live and work. Its more than 9,000 member organizations and network of 75 regional chapters are united to advance their mission of transforming the building industry to sustainability.