Associated Builders and Contractors (ABC) is a national association representing 25,000 merit shop construction and construction-related firms in 79 chapters across the United States

NAHB is a trade association that helps promote the policies that make housing a national priority. Since 1942, NAHB has been serving its members, the housing industry, and the public at large.

The National Demolition Association is a non-profit trade organization representing more than 1,000 U.S. and Canadian companies which offer standard demolition services, as well as a full range of demolition-related services and products. Its educational efforts help members stay abreast of regulatory and safety matters and keep regulators informed about issues facing their industry.