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IUOE Local 139

Local IUOE

Local 139 ยท International Union of Operating Engineers

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Contact

Mailing Address
Attn: Terry MC Gowan N 27 W 23233 Roundy DrPewaukee, WI 53072

Officers 12

  • Terrance E. McGowan

    Business Manager/President

  • Steve Buffalo

    Financial Secretary

  • Aaron Raab

    Treasurer

  • Dan Sperberg

    Vice President

  • Shane Griesbach

    Recording Secretary

  • Shaun McHugh

    Trustee/HB Liason

  • Allan Fogel

    Trustee/Bus Agent

  • Mike Ervin

    Trustee/Org Director

  • Nicolas Michels

    Auditor

  • Travis Martzhal

    Auditor/Bus Agent

  • John Oppeneer

    Conductor/Org Invest

  • Casey Aronson

    Guard/Bus Agent

From the 2025 LM-2 report (opens in new tab)

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Federal Filing

Members Reported
11,702
Last Report
2025
Form
LM-2
File Number
35847

Members as the union reported them on its 2025 LM-2 report. Counts may include retirees and associate members.

NLRB cases for Local 139 Elections and unfair labor practice charges on LaborLab Search

Sources 2

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 Use Suggest an Edit above to tell us what's out of date.