American Federation of Government Employees (AFGE) 
American Federation of School Administrators (AFSA)
American Federation of State, County and Municipal Employees (AFSCME) 
American Federation of Teachers (AFT) 
Air Line Pilots Association (ALPA)
American Postal Workers Union (APWU)
Bakery, Confectionery, Tobacco Workers & Grain Millers International Union (BCTGM)
Brotherhood of Railroad Signalmen (BRS)
Communication Workers of America (CWA) 
Glass, Molders, Pottery, Plastics and Allied Workers International Union (GMP)  
International Association of Fire Fighters (IAFF) 
International Association of Machinists and Aerospace Workers (IAMAW)
International Alliance of Theatrical Stage Employees, Moving Picture Technicians, Artists and Allied Crafts of the United States, Its Territories and Canada (IATSE)
International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART)
International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers (IBB)  
International Brotherhood of Electrical Workers (IBEW)
International Federation of Professional and Technical Engineers (IFPTE)
International Association of Bridge, Structural, Ornamental & Reinforcing Iron Workers (Ironworkers)
International Union of Bricklayers and Allied Craftworkers (BAC) 
International Union of Elevator Constructors (IUEC)
International Union of Painters and Allied Trades of the United States and Canada (IUPAT)
International Union of Operating Engineers (IUOE)
Laborers' International Union of North America (LiUNA) 
Maritime Trades Department, AFL-CIO
Metal Trades Department, AFL-CIO
National Air Traffic Controllers Association (NATCA)
National Federation of Federal Employees (NFFE)
National Nurses United 
National Postal Mail Handlers Union (NMPHU)
North America's Building Trades Unions (NABTU) 
Office and Professional Employees International Union (OPEIU) 
Professional Aviation Safety Specialists (PASS) 
United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada (UA)
United Mine Workers of America (UMWA)
United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial & Service Workers International Union (USW) 
United Union of Roofers, Waterproofers and Allied Workers (Roofers and Waterproofers) 
Utility Workers Union of America (UWUA)