1.) the U.S. Chamber of Commerce
This is an association of businessman and businesswoman designed to promote and protect the interests of its members.
2.) American Federation of Labor
a federation of trade unions organized in 1886: united with the Congress of Industrial Organizations 1955.
3.) National Association of Manufacturers (NAM)
The National Association of Manufacturers (NAM) is an advocacy group headquartered in Washington, D.C., United States, with 10 additional offices across the country.