- AT&T
- AOC Connect
- Barton Malow Construction
- Booz Allen Hamilton
- Cogema
- CSC/DynCorp Technical
- Day & Zimmermann
- DynMcDermot
- DHS
- DOJ/FBI
- Dominion
- Fluor
- JIL Systems
- Jacobs Engineering Group, Inc
- Kemmet Industries
- LB&B
- Lockheed Martin
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- MetLife
- National Alliance for Advanced Transportation Batteries
- Orbital Sciences Corporation
- QSS Group, Inc.
- Qwest Communications
- U.S. Navy
- U.S. Army
- U.S. Air Force
- U.S. Marine Corps
- Raytheon
- Science Applications International Corp. (SAIC)
- Serco
- Shaw Group
- Sodexho
- Systematic Management Services
- Titan Systems
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