About Us


In 1992, Construction Business Group was established and a charter agreement was signed creating our Joint Labor-Management (JLM) organization.

The Joint Labor-Management charter provides for a Board of Trustees consisting of four labor trustees and four management trustees. Both labor and management have equal representation and voting authority. The Board of Trustees meets at least quarterly and is charged with the responsibility of managing the JLM Fund and directing operations.

Our Mission Statement

Our purpose, as a Joint Labor-Management company, is to enhance business opportunities and a quality of life by ensuring fairness, equity and standards of excellence in the construction industry of Wisconsin.

Management Trustees Labor Trustees
William Kahl
W K Construction, Inc.

Barry Scholz
The Boldt Company
AGC Wisconsin

William Buglass
Payne & Dolan, Inc.

Murray Luedtke
Michels Corporation

Pete Braun
Wall-tech Inc.

Todd Browning
Olympic Companies, Inc.

Terrance E. McGowan
IUOE 139 President/Business Manager

Steve Buffalo
IUOE 139
Financial Secretary

Shane Griesbach
IUOE 139
District D Manager

Len Shelton
IUOE Local 139
Recording-Corresponding Secretary

Burt Johnson
North Central States Regional Council of Carpenters
General Counsel

John Raines
North Central States Regional Council of Carpenters
Executive Secretary-Treasurer

CBG Staff

Robb Kahl
Executive Director
Ph: 608-240-4175
Cell: 608-212-1076

Patty Barlow
Finance Manager
Ph: 608-240-4178
Cell: 608-212-4757

Cynthia L. Buchko
General Counsel
Ph: 608-310-8341
Cell: 608-576-2920

Cheryl Louis
Ph: 608-310-8344
Cell: 608-445-9842

Marilyn Mau
Project Specialist
Ph: 608-240-4177
Cell: 608-698-2272

Bill Wilson
Wage and Hour Investigator
Cell: 414-333-5054

Neil Strobel
Wage and Hour Investigator
Cell: 920-360-5437

Doug Wipperfurth
Wage and Hour Investigator
Ph: 608-240-4176
Cell: 608-712-1847

Dan Vergin
Wage and Hour Investigator
Cell: 715-207-3032

Dean Meyer
Wage and Hour Investigator
Cell: 715-538-3032

John Paitl
Wage and Hour Investigator
Cell: 715-305-6665