Amtrak, Inc. (Indianapolis, IN)
Arch Chemicals (Brandenburg, KY)
Arch Chemicals (Lake Charles, LA)
ATOchem, Inc. (Calvert City, KY)
Bravura (Louisville, KY)
Bremner (Louisville, KY)
Cherry Burrell (Louisville, KY)
Electronic Systems USA (Louisville, KY)
Ford Motor Company (Louisville, KY)
Fort Knox Army Base (Brandenburg, KY)
General Electric Answer Center (Louisville, KY)
General Electric Appliance Park (Louisville, KY)
General Electric CANADA (Petersborough, Ontario)
General Electric Industrial Control Systems (Fort Wayne, IN)
Lockheed Martin Utility Services Gaseous Diffusion Plant (Paducah, KY)
Louisville Gas and Electric (Louisville, KY)
Louisville Ladder (Louisville, KY)
Louisville Metropolitan Sewer Department (Louisville, KY)
Louisville Water Company (Louisville, Ky)
Michelmans, Inc. (Cincinnati, OH)
New Albany School Systems (New Albany, IN)
Northstar Steel (Calvert City, KY)
Norton's Health System, Inc. (Louisville, KY)
Philips Lighting Company (Danville, KY)
Raytheon (Louisville, KY)
Rohm & Haas (Louisville, KY)
SMC Pneumatics, Inc. (Indianapolis, IN)
Texas Gas Inc. (Owensboro, KY)
United Parcel Service (Louisville, KY)
United States Uranium Enrichment Corp (Piketon, OH)
VeriFone, Inc. (Louisville, KY)
Weyerhaeuser (Louisville, KY)
Zeon Chemicals (Louisville, KY)