About The Associated General Contractors Of America The Associated General Contractors of America (AGC) is a leading association for the construction industry. AGC represents more than 26,000 firms, including over 6,500 of America’s leading general contractors, and over 9,000 specialty-contracting firms. More than 10,500 service providers and suppliers are also associated with AGC, all through a nationwide network of chapters. To learn more, visit www.agc.org.