BP Amoco/Whiting-IN
Nipsco Wheatfield Station - IN
United State Steel/Morrison-IN
Stateline Power Station - IN
ALCOA - IA
Degussa - IL
Kincaid Power Station-IL
Caterpillar/Mapleton - IL
Whiting Clean Energy - IN
Frozen Assets-IL
Northwestern Univ. - IL
Aventis Bearing - IL
Bradley Hall-IL
Valparaiso University - IN
Rhodia-IN
Combined lab - IL
Quantum-IL
Flint Hills Resources-IL
Shapiro – IL
IMTT - IL

Berkshire Refrig. Warehouse-IL
Ben Keith Foods-OK
Praxair-IN
Aramark/Chicago - IL
State Farm Insurance-IL
Oberweiss/N.Aurora-IL
NICOR-IL
U.S. Cold Storage-IL
CN/CI Railroad - IL
Vermilion Station-IL
Quantum Foods-IL
Miniat Meats-IL
Freda Foods-IL
Wells Fargo-IL
Van Drunen Farms-IL
Otto and Sons-IL
Orica Nitrogen-IL
Ashland Market-Il
Guardian Pipeline-IL
Nabisco-IL
Dynegy/Hennepin Station-IL