International Union of Operating Engineers
Contact IUOE Local 400
2737 AIRPORT ROAD
HELENA, MT 59604
IUOE Local 400 Officers
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About IUOE Local 400Founded in 1896, the International Union of Operating Engineers (IUOE) represents Operating Engineers, who work as heavy equipment operators, mechanics, and surveyors in the construction industry, and Stationary Engineers, who work in operations and maintenance in building and industrial complexes, and in the service industries. The IUOE also represents nurses and other health industry workers as well as significant numbers of public employees engaged in a wide variety of occupations.
Local Unions in HELENA, MTBMWE Local 158, APWU Local 649, NALC Local 220, IBEW Local 206, AFSCME Local 9, UBC Local 153, AFM Local 642, LIUNA Local 254, IAM Local 231, SMWIA Local 103, IBEW Local 233, IW Local 841