There are so many here in the United States of America. Below is a list of them

Air Line Pilots Association
Amalgamated Transit Union
American Federation of Government Employees
American Federation of Musicians
American Federation of School Administrators
American Federation of State, County and Municipal Employees
American Federation of Teachers
American Federation of Television and Radio Artists
American Postal Workers Union
American Train Dispatchers Department
Associated Actors and Artistes of America
- Actors' Equity Association
- American Guild of Musical Artists
- American Guild of Variety Artists
- The Guild of Italian American Actors
- Screen Actors Guild
Bakery, Confectionery, Tobacco Workers and Grain Millers' International Union
Brotherhood of Railroad Signalmen
California Nurses Association/ National Nurses Organizing Committee
California School Employees Association
Communications Workers of America
Farm Labor Organizing Committee
Federation of Professional Athletes/National Football League Players Association
Glass, Molders, Pottery, Plastics and Allied Workers International Union
International Alliance of Theatrical Stage Employees
International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers
International Association of Fire Fighters
International Association of Heat and Frost Insulators and Asbestos Workers
International Association of Machinists and Aerospace Workers
International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers
International Brotherhood of Electrical Workers
International Federation of Professional and Technical Engineers
International Guards Union of America
International Longshore and Warehouse Union
International Longshoremen's Association
International Plate Printers, Die Stampers and Engravers Union of North America
International Union of Allied Novelty and Production Workers
International Union of Bricklayers and Allied Craftworkers
International Union of Elevator Constructors
International Union of Operating Engineers
International Union of Painters and Allied Trades
International Union of Police Associations
Laborers' International Union of North America
Marine Engineers Beneficial Association
National Football League Players Association
National Air Traffic Controllers Association
National Association of Letter Carriers
Office and Professional Employees International Union
Operative Plasterers' and Cement Masons' International Association
Seafarers International Union of North America
Sheet Metal Workers International Association
Transport Workers Union of America
United American Nurses
United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry of the United States and Canada
United Automobile, Aerospace & Agricultural Implement Workers of America International Union
United Mine Workers of America
United Independent Technology Technicians of America
United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union
United Transportation Union
United Union of Roofers, Waterproofers and Allied Workers
Utility Workers Union of America
Writers Guild of America, East

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