The IAM National 401(k) Plan has over 150 Contributing Employers in the United States. The benefits are negotiated through collective bargaining.

You may link to our Contributing Employer search features by clicking the links below.

If you have any questions about the Contributing Employer search features, please contact the Fund as follows:

  • Phone: 800-424-9608 (participants); 202-785-2658 (others). Our phones are open Monday through Friday, 7:30 a.m. to 7:00 p.m. Eastern Time.
  • E-mail: contact@iam401k.org 
  • Mail: IAM National 401(k) Fund, 99M St. SE, Suite 600
    Washington, DC  20003-3799   

Questions?

You can contact the IAM National 401(k) Fund Office directly to get more information about the plan.

  • Phone: 800-424-9608 (participants); 202-785-2658 (others). Our phones are open Monday through Friday, 9:00 a.m. to 7:00 p.m. Eastern Time.
  • Fax: 202-463-8098 or 202-457-8653
  • Mail: IAM National 401(k) Fund, 99 M Street, SE, Suite 600, Washington, DC 20003-4595
  • E-mail Form: Click Here
  • John Hancock: If you have questions about your 401(k) plan or need assistance regarding your retirement account, please visit John Hancock's website by clicking here or call 833-388-6466. Phone lines are open Monday through Friday from 8:00 AM to 8:00 PM Eastern Time.