Private company

United Steelworkers

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Industrial labor union in North America

The United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, commonly known as the United Steelworkers (USW), is a general trade union with members across North America. Headquartered in Pittsburgh, the United Steelworkers represents workers in Canada, the Caribbean, and the United States.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

May 22, 1942Founded1
  • HeadquartersPittsburgh, United States1
  • Websiteusw.org
  • Legal form501(c)(5) organization1
  • LEI0PZPTDXWOI0COXBX18473
  • StatusActive3
  • LEI statusLapsed (not renewed)3
  • Registered address5 Gateway Center, 15222 Pittsburgh, United States3

The United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, commonly known as the United Steelworkers (USW), is a general trade union with members across North America. Headquartered in Pittsburgh, the United Steelworkers represents workers in Canada, the Caribbean, and the United States. The United Steelworkers represent workers in a diverse range of industries, including its original home in metals, as well as paper, chemicals, glass, rubber, heavy-duty conveyor belting, tires, transportation, utilities, container industries, pharmaceuticals, call centers, museums, health care, and higher education.2

The story

The USW was established May 22, 1942, in Cleveland, Ohio, through the Congress of Industrial Organizations (CIO) by a convention of representatives from the Amalgamated Association of Iron, Steel, and Tin Workers and the Steel Workers Organizing Committee, after almost six years of divisive struggles to create a new union of steelworkers. The drive to create this union included such violent incidents as the infamous Memorial Day, 1937, when Chicago policemen supporting the rival American Federation of Labor (AFL) fired on workers outside a Republic Steel mill and killed 10 men.

The founder and first president of the USW, Philip Murray, led the union through its first organizing drives and its first decade, when the workers of USW went on strike several times to win the right to bargain collectively with steel companies.

Significant job actions of the USW include:

1946 US Steel Strike

1952 steel strike

Steel strike of 1959

1974 Elliot Lake miners strike

Steel strike of 1986

From Wikipedia’s article on United Steelworkers, shared under CC BY-SA 4.0.5

Leadership

Who has led United Steelworkers, and when. Pick a name to see everywhere that person has worked.

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Acquisitions

In April 2007, Amicus, then the United Kingdom's second-largest trade union, began discussions with the USW about a possible merger. Amicus subsequently merged with the British Transport and General Workers Union to form the new union Unite. Unite and the USW continued the merger talks initiated by Amicus.

In May 2008, the unions announced that they were putting the "finishing touches" on the merger, that the merger had been endorsed by Unite officials, and that the USW would discuss the plan at its forthcoming convention in July. Once completed, the new merged entity would represent more than 3 million workers in the United States, the United Kingdom, Canada, Ireland and the Caribbean. The unions have further announced that the new entity would target further mergers with labor groups in Australia and in the emerging economies of Asia, Latin America and Eastern Europe. On July 2, 2008, USW and Unite leadership formally signed the merger agreement to create the new entity, to be called Workers Uniting.

From Wikipedia’s article on United Steelworkers, shared under CC BY-SA 4.0.5

Timeline

  1. May 22, 1942Founded Founded1