Partners
- Applied Science Associates, Inc.
- Research Planning, Inc.
- DF Dickins Associates, Ltd.
- Spiltec
- Northwest Economic Associates
- E-Tech International
- Patton Boggs LLP
- Potomac Management Group, Inc.
- Abt Associates, Inc.
- SL Ross Environmental Research Ltd.
- Herbert Engineering, Inc.
- Scientific and Environmental Associates, Inc.
- The Glosten Associates:
- Entrix, Inc.
- SAIC
- Ecology & Environment, Inc.