AK Steel Co.
American Mechanical
Argus-Hazco
Aristeo Construction Co.
Auto Alliance International
Barton Malow Co.
Bearing Services
Binkelman
C.M.S. Energy Company: Consumers Energy
C&N Manufacturing
Chicago Conveyor Corporation
Chrysler Group, LLC
Comau, Inc.
Commercial Contracting Group
Compau-Pico
Consolidated Rail Company (Conrail)
Core Electric
Decal Mechanical
Del Ray Connecting Railroad
Demaria General Contracting
DTE Corporation: Detroit Edison & Energy Services
Dura Automotive Systems, LLC
Durr Environmental Genesee Power & Light Excel Corporation
Enco Engineering
Excel Corporation
Fata International
Faurecia North America
Federal-Mogul
First Energy Corporation
Five Star Systems
Fluor
Ford Motor Company
GE International
GE Power Systems
General Motors Corporation
Grob Systems, Inc.
Grubb & Ellis

Hall Industrial
Hartman-Fabco, Inc.
Headwaters, Inc.
Ideal Contracting
Ingersol-Rand Co.
Johnson Controls, Inc.
K&K Recycling
KUKA Systems North America, LLC
Lansing Board Of Water And Light
Lasalle, Inc.
Lear Corporation
Marathon Oil Company
Matrix-SME
Maumee Valley Fabricators
Michigan Industrial Group
Michigan South Central Power
Monarch Welding & Engineering
Power Transmission Company
Roncelli, Inc.
Rudolph/Libbe
Sandusky Coal Docks – Norfolk Southern
Severstal North America
Shanahan Engineering, Inc.
Southern Illinois Power Co
Stenco Construction Company
St. Mary’s Cement, Inc.
St. Vincent’s Hospital-Toledo
Sure Alloy Steel (SAS Global)
Taggart Global, LLC
Toyota Motor Corporation
Tri-Tec, LLC
U.S. Army Tacom Facility
U.S. Steel-Great Lakes Works
Vanderlande Industries
Walbridge-Aldinger Company
Waste Management
Woodbridge Corporation
City of Wyandotte