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- Alcoa
- AMD-Advanced Micro Devices, Inc.
- Amoco
- Amtrak
- Argonne National Laboratory
- Astra Zeneca
- The Boeing Company
- Ciba-Geigy
- Colgate-Palmolive
- Compaq Computer
- Delaware Air National Guard
- Detroit Edison Fermi 2 (Nuclear)
- Dover Air Force Base
- Duke Power Company
- Ericsson Inc.
- Estee Lauder
- Exelon
- Exxon/Mobil
- Federal Aviation Administration
- Firmenich
- Ford Motor Co.
- GE Aerospace
- GE Industrial Systems
- Hoeschst-Celanese
- IPALCO Enterprises, Inc
- Indianapolis Power & Light Co.
- Kokoshing Construction Co.
- Lockheed Martin
- Mallinckrodt
- McClone Construction
- Middough Associates
- NASA-Kennedy Space Center
- Orbital Engineering
- Phillip Morris USA
- Retrotech
- Rhone-Poulenc
- Schneider National, Inc.
- Sun Oil Company
- Tennessee Gas Pipeline Co.
- United Space Alliance (NASA)
- US DOT +-
- Wal-Mart Corporation
- Washington State University