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The IAM’s Sectors

The IAM also represents members in a wide variety of industries.70 Aerospace manufacturing and related services is the largest industry where IAM members work.71 This industry involves the production of aircraft, spacecraft, and related parts, encompassing manufacturing facilities that design, develop, and produce these vehicles, along with services related to maintenance, repair, and overhaul. Aerospace is a critical to national defense and commercial aviation.72


The air transportation sector is the second-largest group of members, further highlighting the union's significant influence in the aviation industry.73 This sector includes businesses that


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70 International Association of Machinists and Aerospace Workers, “Updated Data on IAM Membership by Industry,” May 22, 2024.

71 International Association of Machinists and Aerospace Workers.

72 U.S. Bureau of Labor Statistics, “Industries at a Glance.”

73 International Association of Machinists and Aerospace Workers, “Updated Data on IAM Membership by Industry,” May 22, 2024.

provide air transportation for passengers and cargo, covering major airlines, regional carriers, and air freight companies essential for global connectivity, trade, and tourism74.


The IAM has a significant presence in vital infrastructure and government sectors.75 A large number of members work in railroads and rail transit, operating trains and maintaining rail systems that keep people and products moving. The federal government also employs many IAM members in various capacities, from administrative roles to jobs that directly impact national security, like defense-related positions.


Manufacturing is another key area for the IAM.76 In addition to the aerospace industry, thousands of members work in factories that make metal product and machinery.77 These skilled workers take raw metals and turn them into everything from basic parts to complex equipment, supplying essential components for many other industries.78


IAM members work in fields like auto repair, personal care, and maintenance, providing services that people rely on in their daily lives.79 Other IAM-represented industries are incredibly diverse, ranging from healthcare and forestry, to auto dealers and print shops, to mining, oil, and gas.

The “Industries Represented by IAM Members” graph shows the different sectors where IAM members work.


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74 U.S. Bureau of Labor Statistics, “Industries at a Glance.”

75 International Association of Machinists and Aerospace Workers, “Updated Data on IAM Membership by Industry,” May 22, 2024.

76 International Association of Machinists and Aerospace Workers.

77 U.S. Bureau of Labor Statistics, “Industries at a Glance.”

78 U.S. Bureau of Labor Statistics.

79 U.S. Bureau of Labor Statistics.