- Albert P Kung Consulting
- Behre Dolbear & Co
- Black & Veatch
- Blasland Bouck & Lee Inc
- Bridge Technology Consulting
- Cantor Seinuk Group Inc
- Cogesco International
- Flack & Kurtz Inc
- Flack & Kurtz Inc
- Hanington Engineering Cnslnt
- Hanington Engineering Cnslnt
- Hanington Engineering Cnslnt
- Lakhani & Jordan Engineers PC
- Lakhani & Jordan Engineers PC
