- Advanced Systems Technology
- Aerojet
- Allied Technology Group, Inc.
- AlCOA
- ARCADIS
- ARCO
- Arent Fox Kitner
- ASG, Inc.
- Ashland, Inc.
- Bannister Federal Complex
- Bartlit, Beck, Herman, Palenchar & Scott
- Bass, Berry, and Sims
- Beveridge & Diamond
- Bollinger, Ruberry & Garvey
- Bracewell
- Burke, Weaver & Prell
- Byrd & Byrd
- Carolina Power & Light Company
- Centex Homes
- Chaparral Steel Company
- Chevron U.S.A. Inc.
- City of Beaumont, CA.
- Climaco, Climaco, Seminatore, Lefkowitz and Garofoli LPA.
- Compton, Prewett, Thomas & Hickey, P.A.
- Crosby, Heafey, Roach & May
- Curry & Friend
- Cyprus Amax Minerals Company
- Defense Nuclear Facility Safety Board
- Dow Chemical
- Dupont
- DynCorp of Colorado, Inc.
- EG&G Rocky Flats, Inc.
- Engineering Management Support Inc.
- Ensafe/Allen & Hoshall
- EOP Group
- Exxon Company, USA
- Federal Express
- Fluor Daniel Fernald
- FMC Corporation
- Foster Wheeler Environmental Corporation
- Freeborn & Peters
- Fulbright & Jaworski, L.L.P.
- Gable & Gotwals
- Gardere & Wynne, L.L.P.
- GenCorp Aerojet
- Geomatrix
- Gerald & Brand
- Gibbes, Graves, Mullins, Ferris, Hortman and Harlow
- GPU Nuclear, Inc.
- Groundwater and Environmental Services
- Halliburton Corporation
- Heielburg & Woodliff
- Hodges, Doughty & Carson
- Holme, Roberts, & Owen
- GPU Nuclear, Inc.
- Jose & Wiedis
- Kean, Miller, Hawthorne, D’Armond, McCowan and Jarman, L.L.P.
- Kelly Springfield Tire Company
- Kinder Morgan
- Kirkland & Ellis
- Kirkland, Barfield & Moore, P.A.
- Kramer, Rayson, Leake, Rodgers & Morgan
- Lathrop & Gage
- Manes & Manes
- Manufacturing Sciences Corporation
- Martin Marietta Utility Services, Inc.
- McGinnis, Lochridge & Kilgore, L.L.P.
- Modrall, Sperling, Roehl, Harris, & Sisk, P.A.
- BASF
- National Oilwell-VARCO
- Northeast Utilities System
- Novoste Corporation
- Nuclear Regulatory Commission
- Oak Ridge Institute for Science and Education
- Parallax
- Pennco Energy, Inc.
- Pepper, Hamilton, & Scheetz
- Project Enhancement Corporation
- Pro2Serve
- Republic Services
- Rodey, Dickason, Sloan, Akin & Robb, P.A.
- Roetzel & Andress
- Safety and Ecology Corporation
- Schmeltzer, Aptaker and Shepard
- SAIC
- Shell Oil, Inc
- Skadden, Arps, Slate, Meagher & Flom
- Solutient
- Solutia, Inc.
- The Ohio State University
- The Shaw Group
- Thompson & Knight
- United States Department of Energy
- United States Department of Justice
- University of Arkansas
- University of Ohio
- Vanderbilt University
- Vinson & Elkins
- Vory’s, Sater, Seymour, and Pease
- West Valley Nuclear Services Company, Inc.
- Wiles, Doucher, Van Buren & Boyle
- Wyle Laboratories
- Plus numerous confidential clients
