# List of labor unions in the United States

Unions exist to represent the interests of workers, who form the membership. Under US labor law, the National Labor Relations Act 1935 is the primary statute which gives US unions rights. The rights of members are governed by the Labor Management Reporting and Disclosure Act 1959. List Below

## Largest unions

| Name | est. | Members (approx) | Description | Constitution | Website |
| National Education Association (NEA) | 1857 | 3,000,000+ | Public school employees including but not limited to teachers, Education Support Professionals, cafeteria workers, bus drivers, guidance counselors, nurses, administrative assistants, secretaries, psychologists, and librarians. | 2019 | NEA |
| Service Employees International Union (SEIU) | 1921 | 1,901,161 | RNs, professional, technical and non-professional health care workers; public employees; janitorial and security employees. | 2012 | SEIU |
| American Federation of State, County and Municipal Employees (AFSCME) | 1932 | 1,459,511 | Employees of state, county, and municipal governments. | 2012 | AFSCME |
| Teamsters | 1903 | 1,400,000 | Full name: International Brotherhood of Teamsters. Truck drivers; warehouse workers; miscellaneous trades. | 2016 | Teamsters |
| United Food and Commercial Workers (UFCW) | 1979 | 1,300,000 | Retail store and distribution employees. | 2008 | UFCW |
| United Auto Workers (UAW) | 1935 | 990,000 | Full name: International Union, United Automobile, Aerospace, and Agricultural Implement Workers of America. Automobile, truck, farm equipment, and construction equipment manufacturing workers. | 2010 | UAW |
| United Steelworkers (USW) | 1942 | 860,264 | Steel mill workers; related trades. | | USW |
| American Federation of Teachers (AFT) | 1916 | 1,700,000 | Public school teachers, RNs, professional, technical and non-professional health care workers. | 2022 | AFT |
| International Brotherhood of Electrical Workers (IBEW) | 1891 | 820,000 | Electrical manufacturing workers; electric utility workers. | 2012 | IBEW |
| Laborers' International Union of North America (LIUNA) | 1903 | 669,772 | Miscellaneous construction workers; other trades. | 2022 | LIUNA |
| International Association of Machinists and Aerospace Workers (IAMAW) | 1888 | 653,781 | Aircraft manufacturing workers; aircraft maintenance and repair workers. | 2017 | IAM |
| Communications Workers of America (CWA) | 1947 | 545,638 | Telecommunication, customer service, broadcasting, public sector, healthcare and other workers. | 2013 | CWA |
| United Brotherhood of Carpenters and Joiners of America (UBCJA) | 1881 | 522,416 | Building industry carpenters and millwrights. | 2015 | UBC |
| International Longshore and Warehouse Union (ILWU) | 1937 | 424,579 | Freight handlers at ports. | 2016 | ILWU |
| International Union of Operating Engineers (IUOE) | 1896 | 392,584 | Operators of construction equipment; stationary engineers. | 2015 | IUOE |
| United Association (UA) | 1889 | 324,043 | Full name: United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry of the United States and Canada. | 2021 | UA |
| National Association of Letter Carriers (NALC) | 1889 | 292,221 | United States Postal Service mail delivery workers in urban areas. | 2016 | NALC |
| American Federation of Government Employees (AFGE) | 1932 | 289,023 | Miscellaneous U.S. federal government workers. | 2012 | AFGE |
| American Postal Workers Union (APWU) | 1971 | 286,700 | United States Postal Service workers other than letter carriers. | | APWU |
| International Association of Fire Fighters (IAFF) | 1918 | 331,003 | Professional firefighters and emergency medical service workers. | 2021 | IAFF |
| UNITE HERE | 2004 | 301,886 | Hotel, casino, restaurant, and commercial food service workers and garment manufacturing employees. Formerly UNITE (Union of Needletrades, Industrial and Textile Employees) and HERE, merged in 2004. | 2024 | UNITE HERE |
| National Postal Mail Handlers Union (NPMHU) | 1912 | 269,204 | A division of LIUNA. United States Postal Service workers other than letter carriers. | 2022 | NPMHU |
| Amalgamated Transit Union (ATU) | 1892 | 190,000 | Mass transit service workers. | 2022 | ATU |
| American Nurses Association (ANU) | 1897 | 152,294 | Professional association for registered nurses. | | ANA |
| International Alliance of Theatrical Stage Employees (IATSE) | 1893 | 160,000 | Non-performing entertainment workers in Theater, Motion Picture & Television, & Trade Shows | | IATSE |
| International Association of Sheet Metal, Air, Rail and Transportation Workers (IASMARTW) | 1888 | 148,806 | | | SMART |
| International Union of Painters and Allied Trades (IUPAT) | 1887 | 127,278 | Construction-industry painters, glaziers, drywall finishers, sign & display workers. | 2020 | IUPAT |
| International Association of Bridge, Structural, Ornamental, and Reinforcing Iron Workers (IABSORIW) | 1896 | 125,437 | | 2021 | IW |
| Transport Workers Union of America (TWUA) | 1934 | 125,398 | Mass transit, railroad, and airline workers. | 2017 | TWU |
| Office and Professional Employees International Union (OPEIU) | 1945 | 105,000 | White-collar workers in the public and private sector. | | OPEIU |
| National Rural Letter Carriers' Association (NRLCU) | 1903 | 104,717 | United States Postal Service mail delivery workers in rural areas. | 2017 | NRLCA |

## AFL-CIO

This is a list of AFL–CIO affiliated member unions:
* Air Line Pilots Association (ALPA)
* Amalgamated Transit Union (ATU)
* American Federation of Government Employees (AFGE)
* American Federation of Musicians of the United States and Canada (AFM)
* American Federation of School Administrators (AFSA)
* American Federation of State, County and Municipal Employees (AFSCME)
* American Federation of Teachers (AFT)
* American Postal Workers Union (APWU)
* American Radio Association (ARA)
* American Train Dispatchers Association (ATDA)
* Associated Actors and Artistes of America (4As)
** Actors' Equity Association (AEA)
** American Guild of Musical Artists (AGMA)
** American Guild of Variety Artists (AGVA)
** The Guild of Italian American Actors (GIAA)
** Screen Actors Guild-American Federation of Television and Radio Artists (SAG-AFTRA)
* Bakery, Confectionery, Tobacco Workers and Grain Millers' International Union (BCTGM)
* Brotherhood of Railroad Signalmen (BRS)
* California School Employees Association (CSEA)
* Communications Workers of America (CWA)
** Association of Flight Attendants (AFA-CWA)
** Industrial Division, CWA (IUE-CWA)
** National Association of Broadcast Employees and Technicians (NABET-CWA)
** The Newspaper Guild (TNG-CWA)
** Printing, Publishing and Media Workers (PPMW-CWA)
* Farm Labor Organizing Committee (FLOC)
* Gay and Lesbian Labor Activists Network (GALLAN)
* 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 Bridge, Structural, Ornamental and Reinforcing Iron Workers (Ironworkers)
* International Association of Fire Fighters (IAFF)
* International Association of Heat and Frost Insulators and Allied Workers
* International Association of Machinists and Aerospace Workers (IAM)
** Transportation Communications International Union
* 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 Longshoremen's Association (ILA)
* International Organization of Masters, Mates & Pilots (MMP)
* International Plate Printers, Die Stampers and Engravers Union of North America
* International Union of Allied Novelty and Production Workers (Novelty and Production Workers)
* International Union of Bricklayers and Allied Craftworkers (BAC)
* International Union of Elevator Constructors (IUEC)
* International Union of Operating Engineers (IUOE)
* International Union of Painters and Allied Trades (IUPAT)
* International Union of Police Associations (IUPA)
* Laborers' International Union of North America (LIUNA)
** National Postal Mail Handlers Union (NPMHU)
* Major League Baseball Players Association (MLBPA)
* Marine Engineers Beneficial Association (MEBA)
* National Air Traffic Controllers Association (NATCA)
* National Association of Letter Carriers (NALC)
* National Football League Players Association (NFLPA)
* National Hockey League Players Association (NHLPA)
* National Nurses United (NNU)
* National Taxi Workers' Alliance (NTWA)
* National Women's Soccer League Players Association (NWSLPA)
* Office and Professional Employees International Union (OPEIU)
* Operative Plasterers' and Cement Masons' International Association of the United States and Canada (OPCMIA)
* Professional Aviation Safety Specialists (PASS)
* Professional Hockey Players' Association (PHPA)
* Seafarers International Union of North America (SIU)
** American Maritime Officers (AMO)
* Service Employees International Union
* Transport Workers Union of America (TWU)
* UNITE HERE
* United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada (UA)
* United Automobile, Aerospace and Agricultural Implement Workers of America International Union (UAW)
* United Food and Commercial Workers (UFCW)
* United Mine Workers of America (UMWA)
* United Steelworkers (USW)
* United Union of Roofers, Waterproofers and Allied Workers (Roofers and Waterproofers)
* Utility Workers Union of America (UWUA)
* Writers Guild of America, East Inc. (WGAE)

## Strategic Organizing Center

* International Brotherhood of Teamsters
** Graphic Communications Conference
** Brotherhood of Maintenance of Way Employes
** Brotherhood of Locomotive Engineers and Trainmen
* Service Employees International Union
** Workers United
** Colorado Workers for Innovations and New Solutions (WINS)
* United Farm Workers of America

## Independent
### National

* Adult Performance Artists Guild
* Aircraft Mechanics Fraternal Association
* Allied Pilots Association
* Association of Professional Flight Attendants
* Association of Western Pulp and Paper Workers
* Campaign Workers Guild
* Directors Guild of America
* Fraternal Order of Police
* Independent Pilots Association
* Industrial Workers of the World
* International Longshore and Warehouse Union
* International Union of Journeymen and Allied Trades
** Home Healthcare Workers of America
** National Organization of Industrial Trade Unions
** United Public Service Employees Union
** United Service Workers Union
* Jockeys' Guild
* Major League Baseball Players Association
* Major League Baseball Umpires Association
* National Alliance of Postal and Federal Employees
* National Basketball Coaches Association
* National Education Association
* National Emergency Medical Services Association
* National Hockey League Players' Association
* National Rural Letter Carriers' Association
* National Treasury Employees Union
* National Weather Service Employees Organization
* National Women's Soccer League Players Association
* National Writers Union
* Premier Hockey Federation Players' Association
* Professional Lacrosse Players' Association
* Southwest Airlines' Pilots Association
* Stage Directors and Choreographers Society
* United Brotherhood of Carpenters and Joiners of America
* United Electrical, Radio and Machine Workers of America
* United Independent Technology Technicians of America
* United Nurses and Allied Professionals
* United States Rugby Players Association
* U.S. National Soccer Team Players Association
* U.S. Women's National Team Players Association
* Writers Guild of America West

### State and Local

* Alameda County Management Employees' Association
* Boston Police Patrolmen's Association
* Dallas Police Association
* Florida Police Benevolent Association
* Los Angeles
** Association for Los Angeles Deputy Sheriffs
** Los Angeles Police Protective League
** Los Angeles Sheriff's Professional Association
** United Firefighters of Los Angeles City
* New York City
** Detectives' Endowment Association
** Lieutenants Benevolent Association
** Police Benevolent Association of the City of New York
** Sergeants Benevolent Association
* San Francisco Police Officers Association
* State of Hawaii Organization of Police Officers

## Professional sports labor unions

| Name | Year established | Affiliation | League(s) |
| National Basketball Players Association | 1954 | Independent | National Basketball Association |
| National Football League Players Association | 1956 | AFL-CIO | National Football League |
| Major League Baseball Players Association | 1966 | AFL-CIO | Major League Baseball |
| National Hockey League Players Association | 1967 | Independent | National Hockey League |
| Professional Hockey Players' Association | 1967 | Independent | American Hockey League ECHL |
| Professional Lacrosse Players' Association | 1991 | Independent | National Lacrosse League |
| MLS Players Association | 2003 | Independent | Major League Soccer |
| Women's National Basketball Players Association | 1998 | Independent | Women's National Basketball Association |
| National Women's Soccer League Players Association | 2015 | AFL-CIO | National Women's Soccer League |

## Union Reform Groups

* Labor Notes
* Teamsters for a Democratic Union