Contact
- Mailing Address
- Attn: Richard Brown, Secretary-Treasurer 2650 N Farnsworth AveAurora, IL 60502
- Phone
- (708) 567-8287 Joseph J Schaffer, President Listed on the 2025 LM-2 report (opens in new tab)
Officers 8
-
Joseph Schaffer
President
-
Richard Brown
Secretary-Treasurer
-
Gregory Costenero
Vice President
-
Kendal Markham
Recording Secretary
-
Fidel Alcaide
Trustee
-
Gregory Pasko
Trustee
-
Vidal Esparza
Trustee
-
Marvin Belin
Conductor Sentinel
An executive officer can send the current list.
Federal Filing
- Members Reported
- 14,622
- Last Report
- 2025
- Form
- LM-2
- File Number
- 16910
Members as the union reported them on its 2025 LM-2 report. Counts may include retirees and associate members.
NLRB cases for International Association of Machinists (IAM) Elections and unfair labor practice charges across the whole union, on LaborLab Search
Sources 2
- OLMS LM-2 report, 2025 (file no. 016-910) (opens in new tab)
Checked Oct 12, 2026
- OLMS filings for file no. 016-910, 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 Use Suggest an Edit above to tell us what's out of date.