- Associated Actors and Artistes of America (4As)
- 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 (home.earthlink.net/~araplans/)
- American Train Dispatchers Department ATDD (atdd.homestead.com/atddpg1.html)
- Atomic Trades and Labor Council ATLC
- Bakery, Confectionery, Tobacco Workers and Grain Millers International Union BCTGM (www.bctgm.org)
- Brotherhood of Railroad Signalmen BRS (www.brs.org)
- California School Employees Association CSEA (www.csea.com)
- California Nurses Association CNA (www.calnurse.org)
- Communications Workers of America CWA (www.cwa-union.org)
- Farm Labor Organizing Committee (FLOC) (www.floc.com)
- Federation of Professional Athletes
- Glass, Molders, Pottery, Plastics and Allied Workers International Union GMP (www.gmpiu.org)
- International Alliance of Theatrical Stage Employees IATSE (www.iatse-intl.org)
- International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers IW (www.ironworkers.org)
- International Association of Fire Fighters IAFF (www.iaff.org)
- International Association of Heat and Frost Insulators and Asbestos Workers (www.insulators.org)
- International Association of Machinists and Aerospace Workers IAM (www.iamaw.org)
- International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers (www.boilermakers.org)
- International Brotherhood of Electrical Workers IBEW (www.ibew.org)
- International Federation of Professional and Technical Engineers IFPTE (www.ifpte.org)
- International Longshore and Warehouse Union ILWU (www.ilwu.com)
- International Longshoremen's Association ILA (www.ilaunion.org)
- 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 BAC (www.bacweb.org)
- International Union of Elevator Constructors IUEC (www.iuec.org)
- International Union of Journeymen Horseshoers and Allied Trades IUJHAT
- International Union of Operating Engineers IUOE (www.iuoe.org)
- International Union of Painters and Allied Trades IUPAT (www.iupat.org)
- International Union of Police Associations IUPA (www.iupa.org/)
- Union Millwrights([1])
- National Federation of Independent Unions NFIU (www.nfiu.org)
- National Postal Mail Handlers Union NPMHU (www.npmhu.org)
- Marine Engineers Beneficial Association MEBA (www.d1meba.org)
- National Air Traffic Controllers Association NATCA (www.natca.org)
- National Association of Letter Carriers NALC (www.nalc.org)
- National Nurses Organizing Committee NNOC (www.nnoc.net)
- Office and Professional Employees International Union OPEIU (www.opeiu.org)
- Operative Plasterers' and Cement Masons' International Association OPCMIA (www.opcmai.org)
- Seafarers International Union of North America SIU (www.seafarers.org)
- Sheet Metal Workers International Association SMWIA (www.smwia.org)
- Transport Workers Union of America TWU (www.twu.org)
- Transportation Communications International Union TCU (www.tcunion.org)
- United American Nurses UAN (www.uannurse.org)
- United Association of Journeymen and Apprentices of the Plumbing, Pipefitting and Sprinkler Fitting Industry of the United States and Canada UA
- United Automobile, Aerospace & Agricultural Implement Workers of America International Union UAW (www.uaw.org
- United Mine Workers of America UMWA (www.umw.org)
- United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union USW (www.usw.org)
- United Union of Roofers, Waterproofers and Allied Workers (www.unionroofers.com)
- Utility Workers Union of America UWUA (www.uwua.org)
- Writers Guild of America, east WGAE (www.wgaeast.org)
(www.cirseiu.org)
Independent
Historical Unions
- Amalgamated Meat Cutters see United Food and Commercial Workers above
- American Federation of Labor (see AFL-CIO above)
- Federation of Organized Trades and Labor Unions
- American Railway Union
- Brotherhood of Sleeping Car Porters
- Cigar Makers' International Union
- Congress of Industrial Organizations (see AFL-CIO above)
- Drug, Hospital, and Health Care Employees Union
- General Trades Union
- Hotel Employees and Restaurant Employees Union see UNITE HERE above
- International Fur & Leather Workers Union
- Knights of Labor
- Paper, Allied-Industrial, Chemical & Energy Workers International Union (PACE) See United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union above
- Professional Air Traffic Controllers Organization (PATCO)
- Retail Clerks International Union see United Food and Commercial Workers above
- Union of Needletrades, Industrial and Textile Employees UNITE! see UNITE HERE above
- United Packinghouse Workers of America see United Food and Commercial Workers above
- Western Federation of Miners see United Steelworkers above
- Workingmen's Benevolent Association
Union Reform Groups
Other Union Organizations