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 | Air Line Pilots Association (ALPA) | Contact info | Website |
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| Amalgamated Transit Union (ATU) | Contact info | Website |
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| American Federation of Government Employees (AFGE) | Contact info | Website |
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| American Federation of Musicians of the United States and Canada (AFM) | Contact info | Website |
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| American Federation of School Administrators (AFSA) | Contact info | Website |
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| American Federation of State, County and Municipal Employees (AFSCME) | Contact info | Website |
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| American Federation of Teachers (AFT) | Contact info | Website |
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| American Postal Workers Union (APWU) | Contact info | Website |
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| American Radio Association (ARA) | Contact info |
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| American Train Dispatchers Association (ATDA) | Contact info |
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| Associated Actors and Artistes of America (4As) | Contact info |
| | | Actors' Equity Association (AEA) | Contact info | Website |
| | | American Federation of Television and Radio Artists (AFTRA) | Contact info | Website |
| | | American Guild of Musical Artists (AGMA) | Contact info | Website |
| | | American Guild of Variety Artists (AGVA) | Contact info | Website |
| | | Hebrew Actors' Union Inc. | Contact info |
| | | Screen Actors Guild (SAG) | Contact info | Website |
| | | The Guild of Italian American Actors (GIAA) | Contact info | Website |
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| Bakery, Confectionery, Tobacco Workers and Grain Millers International Union (BCTGM) | Contact info | Website |
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| Brotherhood of Railroad Signalmen (BRS) | Contact info | Website |
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| California Nurses Association/National Nurses Organizing Committee (CNA/NNOC) | Contact info | Website |
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| California School Employees Association (CSEA) | Contact info | Website |
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| Communications Workers of America (CWA) | Contact info | Website |
| | | Association of Flight Attendants (AFA-CWA) | Contact info | Website |
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| Farm Labor Organizing Committee (FLOC) | Contact info | Website |
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| Federation of Professional Athletes (Professional Athletes) | Contact info | Website |
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| Glass, Molders, Pottery, Plastics and Allied Workers International Union (GMP) | Contact info | Website |
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| International Alliance of Theatrical Stage Employes, Moving Picture Technicians, Artists and Allied Crafts of the United States, Its Territories and Canada (IATSE) | Contact info | Website |
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| International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers (Iron Workers) | Contact info | Website |
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| International Association of Fire Fighters (IAFF) | Contact info | Website |
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| International Association of Heat and Frost Insulators and Asbestos Workers (AWIU) | Contact info | Website |
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| International Association of Machinists and Aerospace Workers (IAM) | Contact info | Website |
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| International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers (IBB) | Contact info | Website |
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| International Brotherhood of Electrical Workers (IBEW) | Contact info | Website |
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| International Federation of Professional and Technical Engineers (IFPTE) | Contact info | Website |
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| International Longshore and Warehouse Union (ILWU) | Contact info | Website |
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| International Longshoremen's Association (ILA) | Contact info | Website |
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| International Plate Printers, Die Stampers and Engravers Union of North America | Contact info |
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| International Union of Allied Novelty and Production Workers (Novelty and Production Workers) | Contact info |
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| International Union of Bricklayers and Allied Craftworkers (BAC) | Contact info | Website |
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| International Union of Elevator Constructors (IUEC) | Contact info | Website |
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| International Union of Operating Engineers (IUOE) | Contact info | Website |
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| International Union of Painters and Allied Trades of the United States and Canada (Painters and Allied Trades) | Contact info | Website |
| | |
| International Union of Police Associations (IUPA) | Contact info | Website |
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| Marine Engineers' Beneficial Association (MEBA) | Contact info | Website |
| | | Professional Aviation Safety Specialists (PASS) | Contact info | Website |
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| National Air Traffic Controllers Association (NATCA) | Contact info | Website |
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| National Association of Letter Carriers (NALC) | Contact info | Website |
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| National Postal Mail Handlers Union (NPMHU) | Contact info | Website |
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| Office and Professional Employees International Union (OPEIU) | Contact info | Website |
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| Operative Plasterers' and Cement Masons' International Association of the United States and Canada (OP&CMIA) | Contact info | Website |
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| Seafarers International Union of North America (SIU) | Contact info | Website |
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| Sheet Metal Workers International Association (SMWIA) | Contact info | Website |
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| Transport Workers Union of America (TWU) | Contact info | Website |
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| Transportation Communications International Union/IAM (TCU/IAM) | Contact info | Website |
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| United American Nurses (UAN) | Contact info | Website |
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| United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada (UA) | Contact info | Website |
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| United Automobile, Aerospace & Agricultural Implement Workers of America International Union (UAW) | Contact info | Website |
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| United Mine Workers of America (UMWA) | Contact info | Website |
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| United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial & Service Workers International Union (USW) | Contact info | Website |
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| United Transportation Union (UTU) | Contact info | Website |
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| United Union of Roofers, Waterproofers and Allied Workers (Roofers and Waterproofers) | Contact info | Website |
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| Utility Workers Union of America (UWUA) | Contact info | Website |
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| Writers Guild of America, East Inc. (WGAE) | Contact info | Website |
