| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | Geller Yaron Ltd. | Geotechnical engineering | 4 |
| 2 | GEM Engineering, Inc. | Geotechnical engineering | 0 |
| 3 | GEMTEC | Geotechnical engineering | 1 |
| 4 | Geo Danya | Geotechnical engineering | 9 |
| 5 | Geo-Technology Associates, Inc. | Geotechnical engineering | 2 |
| 6 | Geocisa S.A. | Geotechnical engineering | 5 |
| 7 | Geocon Northwest, Inc. | Geotechnical engineering | 1 |
| 8 | GeoConcepts Engineering, Inc. | Geotechnical engineering | 2 |
| 9 | Geoconsult Consultoria de Solos e Fundações | Geotechnical engineering | 3 |
| 10 | GeoDesign, Inc. | Geotechnical engineering | 11 |
| 11 | GeoEngineers, Inc. | Geotechnical engineering | 1 |
| 12 | GeoGü Ingenieurbüro für Geotechnik | Geotechnical engineering | 6 |
| 13 | GeoIngenieure Früchtenicht + Lehmann GmbH | Geotechnical engineering | 1 |
| 14 | Geopacific Consultants Ltd. | Geotechnical engineering | 19 |
| 15 | Geoprojetos Engenharia Ltda | Geotechnical engineering | 17 |
| 16 | Geosuelos | Geotechnical engineering | 1 |
| 17 | Geotechnical and Environmental Consultants, Inc. | Geotechnical engineering | 16 |
| 18 | Geotechnical Consulting Group Ltd. | Geotechnical engineering | 1 |
| 19 | Geotechnical Engineering-Testing, Inc. | Geotechnical engineering | 1 |
| 20 | Geotechnik Aalen | Geotechnical engineering | 1 |