Our affiliates

International Association of Heat and Frost Insulators and Allied Workers (IAHFIAW)
International Association of Heat and Frost Insulators and Allied Workers (IAHFIAW)

The International Association of Heat and Frost Insulators and Allied Workers has more than 100 locals in

International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers
International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers

The International Brotherhood of Boilermakers represents 12,000 skilled tradespeople in Canada, providing service to more than 33

International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers
International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers

This international association, usually referred to simply as Ironworkers, was founded in 1896 and represents more than

Operative Plasterers’ and Cement Masons’ International Association of the United States And Canada (OPCMIA)
Operative Plasterers’ and Cement Masons’ International Association of the United States And Canada (OPCMIA)

OPCMIA mainly represents workers working in two industry sectors: plaster and cement. On the other hand, they

International Brotherhood of Electrical Workers (IBEW)
International Brotherhood of Electrical Workers (IBEW)

The IBEW has been active for over 100 years and represents more than 675,000 electrical workers in

International Brotherhood of Teamsters
International Brotherhood of Teamsters

With more than 1.4 million members in North America, the International Brotherhood of Teamsters is the continent’s

International Union of Bricklayers and Allied Craftworkers (BAC)
International Union of Bricklayers and Allied Craftworkers (BAC)

The BAC has more than 40 locals in the U.S. and Canada. Members of BAC include tile

International Union of Elevator Constructors (IUEC)
International Union of Elevator Constructors (IUEC)

The IUEC’s 25,000 North American members assemble, install, maintain, repair and replace elevators, escalators, dumbwaiters, moving walkways

International Union of Operating Engineers (IUOE)
International Union of Operating Engineers (IUOE)

The IUOE is the 12th largest union in the AFL-CIO and is recognized as a leader in

International Union of Painters and Allied Trades (IUPAT)
International Union of Painters and Allied Trades (IUPAT)

Recognized as being one of the most active unions in the labour movement, IUPAT represents more than

Laborers’ International Union of North America (LIUNA)
Laborers’ International Union of North America (LIUNA)

With more than half a million members in North America, of which 75,000 are in Canada, LIUNA

Sheet Metal, Air, Rail and Transportation Workers (SMART)
Sheet Metal, Air, Rail and Transportation Workers (SMART)

Representing more than 150,000 members in North America, the SMART has been in operation since 1888. Members

United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada (UA)
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada (UA)

The UA represents approximately 370,000 skilled tradespeople in North America and Australia. More than 50,000 of its

United Brotherhood Of Carpenters (UBC)
United Brotherhood Of Carpenters (UBC)

With more than 130 years of history, the UBC is one of the oldest and largest international

Building Connections