- ARCADIS
- A. Morton Thomas and Associates, Inc.
- Anderson & Associates, Inc.
- Atlantic Geotechnical Services Inc.
- Austin Brockenbrough & Associates, LLP
- Bowman Consulting
- Branch Highways
- Dewberry
- DJG, Inc.
- Draper Aden Associates
- GKY & Associates
- HG
- Hurt & Proffitt
- Schnabel Engineering
- Stewart
- Tectonic Engineering Consultants, PC
- Thompson & Litton, Inc.
- TIMMONS Group
- Wiley|Wilson
