IAM Union Reaches Landmark Tentative Labor Agreement with Boeing Covering 3,200 Defense Workers in St. Louis

IAM Union (International Association of Machinists and Aerospace Workers) Negotiators are unanimously recommending a new four-year contract affecting approximately 3,200 highly-skilled IAM Union members at Boeing facilities in St. Louis, St. Charles, Mo., and Mascoutah, Ill.

The four-year agreement includes improvements throughout the contract, including:

    • Average wage increases of 40% over the life of the agreement 
    • Increases in progression rates
    • Strengthens current medical benefits
    • Increased pension multiplier
    • Overtime improvements
    • Work-life balance

“Our negotiating committee worked tirelessly to negotiate a deal that represented the concerns of our membership,” said IAM District 837 Directing Business Representative Tom Boelling. “I couldn’t be more proud of the negotiating team and our membership.”

“This contract puts money in members’ pockets, protects healthcare access, and ensures our members have a voice in future health decisions all while respecting the skill and dedication IAM workers bring to Boeing’s critical defense programs,” said IAM Union International President Brian Bryant.

“This agreement reflects the strength of our membership and the power of solidarity,” said IAM Midwest Territory General Vice President Sam Cicinelli. “From the shop floor to the bargaining table, our members stood united and it paid off.”

“We made it clear to the company that protecting our members’ futures was non-negotiable,” said IAM Resident General Vice President Jody Bennett. “With stronger pensions, real wage growth, and better work-life balance, we’ve delivered a contract that meets the moment.”

IAM members assemble and maintain advanced aircraft and weapons systems, including the F-15, F/A-18, and cutting-edge missile and defense technologies. Their work plays a vital role in safeguarding national security and supporting U.S. and allied defense operations.

The current agreement expires on July 27, 2025 and a contract ratification vote will be held the same day. 

The International Association of Machinists and Aerospace Workers (IAM) is one of North America’s largest and most diverse industrial trade unions, representing approximately 600,000 active and retired members in the aerospace, defense, airlines, railroad, transit, healthcare, automotive, and other industries across the United States and Canada.

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