The International Brotherhood of Boilermakers is a diverse union representing workers throughout the United States and Canada in industrial construction, repair, and maintenance; manufacturing; shipbuilding and marine repair; railroads; mining and quarrying; cement kilns; and related industries.

With its headquarters in Kansas City, Kansas, the International Brotherhood of Boilermakers unites over 250 local lodges throughout North America, providing numerous services for local lodges and individual members and uniting all our members in our common endeavor to improve the lives and lifestyles of our members.