A diversified trade union Represents 400,000 workers in two sections 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. IUOE also represents a number of public service employees.

Represents workers in the heavy highway and building industry in and around Cleveland, Ohio.

Stationary engineers working in commercial and industrial settings in the Renton and Tacoma areas of Washington state.

Headquarters in Richmond Hill, New York. Represents refrigeration and other workers thorugh the Tri-State area.

An unofficial website advocating democratization of the New York local union.

International Union of Operating Engineers in Chicago.

Representing 5,700 power plant workers throughout Michigan.

International Union of Operating Engineers in New Jersey.

The largest local in the IUOE and the largest construction trades local in the United States. Local 3 has about 36,000 members throughout its jurisdiction of northern California, northern Nevada, Utah, Hawaii, Wyoming and portions of South Dakota.

Representing both stationary and hoisting and portable members in Iowa. Local 234 has a diverse Stationary membership. It includes school, city, county, utilities, maintenance, building engineers, and manufacturing employees.

International Union of Operating Engineer's Local 150 is the third largest local in the U.S.A.., and has over 18,000 members in the three states of Illinois, Iowa and Indiana. Unofficial site.

Dedicated to the women and men who work in the field of construction. Pictures from union jobsites in Albany, NY and links to apprenticeship programs, union links, views on women in nontraditional jobs.