Contact
- Mailing Address
- Attn: John Sinz, Treasurer 3400 9th Avenue S.Great Falls, MT 59406
- Phone
- (406) 868-5607 Kimberly A Langemo, President Listed on the 2025 LM-3 report (opens in new tab)
Officers 6
-
Kimberley Langemo
President
-
John Sinz
Treasurer
-
Nick Liston
Secretary
-
Brenden Macdonald
Trustee
-
Jonathan Tillman
Health Benefits Rep
-
William Mintseveris
Sergeant at Arms
An executive officer can send the current list.
Federal Filing
- Members Reported
- 61
- Last Report
- 2025
- Form
- LM-3
- File Number
- 84307
Members as the union reported them on its 2025 LM-3 report. Counts may include retirees and associate members.
Sources 2
- OLMS LM-3 report, 2025 (file no. 084-307) (opens in new tab)
Checked Oct 12, 2026
- OLMS filings for file no. 084-307, labordata.bunkum.us (opens in new tab)
Checked Oct 12, 2026
Listings come from public filings with the U.S. Department of Labor and from the organizations' own websites, as of the dates under Sources. Details change, and we may have them wrong. Check with the organization before you rely on them. Use Suggest an Edit above to tell us what's out of date.