OES, Inc. has the privilege of servicing the highest caliber and most discerning industrial, architectural, medical, commercial and institutional customers in the world.

 

3M United States

Abbott Laboratories

Acuity Insurance

Alcoa Aluminum

Argon National
   Laboratory

Briggs & Stratton
   Corporation

Buell Motorcycle Co.

Caterpillar

Cummins

DaimlerChrysler

Eielson US Air Force
   Base

Energizer Battery 

Exxon Mobil

Ford Motor Company

General Electric

General Motors Co.

Hamilton Sundstrand

Harley Davidson

Harpo Studios

International Truck &
   Engine

Iowa State University

Lockheed Martin

Mercury Marine

Navy Pier Chicago

Nestle USA, Inc.

Nike

Northwestern
   University

Packaging Corp.
   of America

Pella Windows

Polaris Industries

PPG Industries

Princeton University

Procter and Gamble
   Company

Quad Graphics

S.C. Johnson Wax

Subaru 

The Mayo Clinic

The University of
   Chicago

The University of
   Illinois

The University of
   Minnesota

The University of
   Wisconsin

Tinker US Air Force
   Base

Trane Company

United States Steel

Whirlpool Corporation

 

And many more…..
  
 Caterpillar Logo

 Mercury Marine Logo

 General Electric Logo  Cummins Logo

 International Truck Logo

 Trane Logo
 Harpo Studios Logo

 Alcoa Logo

 University of Chicago Logo

 SC Johnson Wax Logo

 Procter & Gamble Logo

 Mayo Clinic Logo
 Exxon Mobile Logo
Quad Graphics Logo 

 

 Harley Davidson Logo

 Energizer Logo

 

 

 

John Deere Logo 

 United States Steel Logo  General Motors Logo
 Lockheed Martin Logo

 Ford Logo

 Pella Windows Logo

 Briggs & Stratton Logo

 Nestle Logo

 Subaru Logo

 Whirlpool Logo
 Toyota Logo