| ACI Building Systems |
ECI | Patterson Services |
| AGC |
Elmwood | Petrocom |
| Aire Systems |
Ensco Drilling | Premiere, Inc. |
| Alford Services Inc. |
Equinix, Inc | Pride Offshore |
| American Iron Reduction |
Ergon Construction | Professional Construction Services, Inc. |
| Anderson Industrial Services, Inc. |
Excell | Project Specialist, Inc. |
| Apache Telecomm |
Exxon Company, USA | PSC |
| Arch Comunications Group, Inc. |
Freeport-McMoran | Railtech Contracting Corporation |
| Arizona Chemical Co. |
Gargoyle Technologies | Redman Pipe & Supply |
| ATS |
Georgia Pacific | Reliable Telecommunication Services, LLC |
| Army Research Lab |
Global Industries, Ltd | SafTech Services |
| B.J. Baldwin Electric, Inc. |
GM Motors | Seco Industries |
| Baker Energy |
Grand Isle/Shipyard | Shaw Construction |
| Batch Wireless |
Gray Insurance Company | Shell/Exploration & Production |
| Baxter Lab |
Gregory Hawkins | Sola Comm |
| Bechtel Corporation |
Grey Star Corporation | SpectraSite |
| BJ Services Company, USA |
Grey Wolf Drilling Co. |
Spectrum Services |
| BP Amoco Energy Comany |
Harrisburg Site Mgmt. Co. | Summitt |
| Brammer Engineering, Inc. |
Heatcraft | Superior Energy Services, Inc. |
| Brand Scaffold Services |
Helmerich & Payne Drilling | Superior Well Service |
| Brookstone Tower |
Heritage Plastics | Synergy Concepts |
| Brown & Root |
IRBY Construction | Syngenta |
| Bullock Tower Services |
Island Operating Co. | Syracuse Utilities, Inc. |
| Bunge North America, Inc. |
JE Merrit | TCB |
| Cabot |
Joe Picard Inc. | Technical Resource Service, Inc. |
| Cajun Express/Transocean Sedco Forex |
Loupe Construction | Teco Bulk Terminal |
| Cameron |
Lower Colorado River Authority | Telcom Construction, Ltd |
| Cellxion |
MSRC | Tetra Applied Technologies |
| CF Industries |
McDonald Observatory | The Trane Company |
| ChevronTexaco |
Mears CPC, LLC | Tower Maintenance Service, Inc. |
| Cleco |
Mid-Western Wireless, Inc. | Tower Services, Inc. |
| Cliff Bullock's Tower Service |
Milennium | Trane |
| Conoco Inc. |
Mississippi Power | Transocean Sedco-Forex |
| Department of Defense |
MMS | UniFab |
| Diversicom |
Moncla Well Service | UOP LLC |
| Dow Chemical |
Morton Salt | US Army Research Laboratory |
| DSM Copolymer |
Nabers Drilling | USG Interiors |
| Dupont |
N.O. Steamship Association | Utilities & C.C., Inc. |
| Dynamic Industries |
North American Ship Building | W.G. Yates & Sons Construction Co. |
| Dynamic Science, Inc. |
Orion Refining Corporation | Water Front Tudor, Inc. |
| Dynatec Mining Corporation |
OSHA | Westinghouse Anniston |
| Dynegy Midstream Company |
Pacific Tower Inc. | Wireless Service, Inc. |
| Earl Telecom |
Parker Drilling | WorldCom/MCI |
| McDermitt |
Murphy Oil | Global Santa Fe |
| Dept of the Treasury |
Dept of the Army | Dept of Forestry |
| United States Enrichment Corporation |
| |
