Retail/Commercial

• Temperature Equipment Company
• United Recycling Industries
• Bristol Myers Squib
• Ameri-Qual
• Mead Johnson Nutritional
• Energy Systems Group (ESG)

Institutional/Governmental

• Veterans Administration/VA Hospitals
• Department of Agriculture / US Forest Service
• City of Chicago

Utilities

• Madison Gas & Electric
• Vectren

Educational

• Green Hills School
• Washington University

Industrial

• ADM
• Cargill
• Cleveland Steel Container
• ConAgra Foods
• George Koch & Sons
• Hexion Specialty Chemicals
• International Truck and Engine
• Kent H. Landsberg Co.
• Millennium Steel
• Minuteman International
• TEPPCO
• TISA