Civil Engineering
- WSP USA
- URS Corporation
- Langan Engineering & Environmental Services
- Parametrix
- Stanley Consultants
- KPFF Consulting Engineers
- China Communications Construction Co., Ltd.
- Colliers Engineering & Design
- Ferrovial
- Ramboll
- Arcadis
- Psomas
- HNTB
- CH2M
- ECS Limited
- CDM Smith
- Kleinfelder
- Mott MacDonald
- Jacobs
- Tetra Tech
- URS Corporation
- Kimley-Horn
- AECOM
- S&ME
- Michael Baker International
- NV5
- POWER Engineers
- Freese and Nichols
- GHD
- Dewberry
- Woolpert
- NYS Department of Transportation
- Los Angeles County Sanitation Districts
- Braun Intertec Corporation
- HBK Engineering, LLC
- LJA Engineering, Inc
- California Department of Transportation