About Us

Questions?

You can contact the IAM Benefit Trust Fund Office directly to get more information about the plan.

  • Phone: 800-457-3481 (participants); 202-785-8148 (others). Our phones are open Monday through Friday, 8:30 a.m. to 4:00 p.m. Eastern Time.
  • Mail: National IAM Benefit Trust Fund, 99 M Street, SE,  Suite 600, Washington, DC 20003-4595
  • E-mail: Click Here