- Logan Simpson
- Vanasse Hangen Brustlin, Inc.
- EDAW, Inc.
- Tetra Tech
- A&B Properties, Inc.
- Project Dimensions, Inc.
- Bluewater Design Group
- Stetson Engineers
- Natural Resources Consulting Engineers
- Louis Berger, Inc.
- David Evans & Associates
- Maurice Robinson & Associates, LLC.
- Environmental Science Associates
- Porat Consulting
- URS Greiner Woodward Clyde
- Winrock International
- Hunt Building Company
- Goldrich & Kest Industries, LLC
- CH2MHill
- Nelson/Nygaard
- Horton, Knox, Carter & Foote
- North State Resources Inc.
- Alexander & Karshmer