iuoe-district-map A B C D

District Offices

Main Office District A (Pewaukee)
N27W23233 Roundy Drive
P.O. Box 130
Pewaukee, WI 53072
Telephone: (262) 896-0139
Toll Free: (800) 280-0139
Dispatch: (800) 815-9424
Fax Number: (262) 896-0758
HEALTH FUND: (800) 242-7018

Steve Buffalo District Manager


Mark Rabago

Counties: Waukesha

Thomas Moore, Jr.

Counties: Northern Milwaukee

Tim Krieg

Counties: Washington, Ozaukee

Dan Marsolek

Counties: Racine, Kenosha

Brian Swearingen

Counties: Southern Milwaukee

Guy Yuker


Mike Ervin

Organizing Director

Matt Parrent

Southeast WI Organizer

Dennis Batt

Statewide Pipeline Representative

John Oppeneer

Statewide Research Organizer

Shaun Mc Hugh

Health Fund Liaison

Shannon Birnschein

Marketing Director

Rebecca Wazny

Executive Assistant to the President/Business Manager

Lynn Kuemmerlein

Jessie Hartman

Financial Administrator

Mamie Bishop

Death Benefits / Disability

Jackie Podjaski

Monthly Dues

Christina Guirau

Administrative Dues
Main Office District B (Madison)
4702 South Biltmore Lane
Madison, WI 53718
Telephone: (608) 243-0139
Toll Free: (844) 861-0250
HEALTH FUND: (800) 242-7018

Mark Gauf District Manager


Allan Fogel

Counties: La Crosse, Monroe, Vernon, Crawford, Grant

Mike Cox

Counties: Juneau, Sauk, Richland, Iowa, LaFayette

Tim Vike

Counties: Dane

Jeremy Allen

Counties: Jefferson, Green, Rock, Walworth

Bob Weaver

Counties: Adams, Marquette, Columbia, Dodge

Chris Feldmann

Southwest WI Organizer

Shelley Klock

Administrative Assistant
Main Office District C (Altoona)
1003 S. Hillcrest Parkway
Altoona, WI 54720
Telephone: (715) 838-0139
Toll Free: (800) 851-7571
Fax Number: (715) 834-5029
HEALTH FUND: (800) 242-7018

Aaron Raab District Manager


Darin Rubenzer

Counties: St. Croix, Pierce, Pepin, Buffalo, Trempealeau, Jackson, Eau Claire, Dunn, Chippewa

Casey Aronson

Counties: Polk, Burnett, Douglas, Washburn, Barron, Bayfield, Sawyer, Rusk

Adam Kaseno

Counties: Iron, Ashland, Price, Vilas, Oneida, Lincoln, Taylor

Mathew Laabs

Counties: Clark, Marathon, Wood, Portage, Langlade

Rich Lego

Northwest WI Organizer

Rebecca Isaacson

Administrative Assistant
Main Office District D (Appleton)
5191 Abitz Rd.
Appleton, WI 54914-0916
Telephone: (920) 739-6378
Toll Free: (800) 851-7559
Fax Number: (920) 739-6370
HEALTH FUND: (800) 242-7018

Shane Griesbach District Manager


Kevin Doucette

Counties: Florence, Forest, Marinette, Menominee, Oconto, Shawano

Tyler Person

Counties: Waupaca, Western Outagamie (West of Hwy 47), Waushara, Winnebago, Green Lake

Travis Martzahl

Counties: Eastern Outagamie (East of Hwy 47), Brown, Calumet, Fond du Lac

Rick Valenta

Counties: Door, Kewaunee, Manitowoc, Sheboygan

Steven Becker

Northeast WI Organizer

Tammy Schertz

Administrative Assistant

District A
Curtis Smith, Jr.
Kevin Smith
Corey Leist

District B
Craig Glover
Matthew Ison

District C
Jeffrey Artus
Glenn Roloson

District D
Corey Vander Loop
John Jankowski

Executive Board Member at Large
Aaron Raab

Elected Officers

Terrance E. McGowan IUOE General Vice President
President/Business Manager Local 139
Daniel Sperberg Vice President Training Director
Shane Griesbach Recording-Corresponding Secretary
District D Manager
Steven Buffalo Financial Secretary Chief of Staff
Mark Gauf
Treasurer District B Manager