| # | Company name | Role | # of Projects |
|---|---|---|---|
| 1 | Alt & Witzig Engineering, Inc. | geotechnical engineering | 6 |
| 2 | AMEC Earth & Environmental Division | geotechnical engineering | 1 |
| 3 | Amir Engineering Ltd. | geotechnical engineering | 1 |
| 4 | ARCADIS Geotecnica SA | geotechnical engineering | 0 |
| 5 | ASC Geosciences, Inc. | geotechnical engineering | 4 |
| 6 | Ash Creek Associates, Inc. | geotechnical engineering | 1 |
| 7 | Asset Geotechnical Engineering | geotechnical engineering | 1 |
| 8 | ATC Associates, Inc. | geotechnical engineering | 1 |
| 9 | Avraham Shani Engineers | geotechnical engineering | 2 |
| 10 | Bachy Soletanche Singapore Private Limited | geotechnical engineering | 6 |
| 11 | Barber, Magee & Hoffman | geotechnical engineering | 1 |
| 12 | Beaver Engineering | geotechnical engineering | 3 |
| 13 | Beifang Investigation ,Design & Research CO. LTD | geotechnical engineering | 0 |
| 14 | Beijing Geotechnical Institute | geotechnical engineering | 9 |
| 15 | Bhate Geosciences Corporation | geotechnical engineering | 21 |
| 16 | Blank Lehrer Engineers Ltd. | geotechnical engineering | 15 |
| 17 | Borland Nusantara Corporation | geotechnical engineering | 1 |
| 18 | Braun Intertec | geotechnical engineering | 14 |
| 19 | BSK Associates | geotechnical engineering | 1 |
| 20 | Caio Graco Wanderley Júnior | geotechnical engineering | 0 |