The
United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union (
United Steelworkers or
USW) is the largest industrial
labor union in
North America, with 860,294 members. Headquartered in
Pittsburgh, US, the United Steelworkers represents workers in the
United States,
Canada and the
Caribbean. The United Steelworkers represent workers in a diverse range of
industries, including primary and fabricated
metals,
chemicals,
glass,
rubber, heavy-duty
conveyor belting,
tires,
transportation,
utilities,
container industries,
pharmaceuticals,
call centers and
health care.