| # | Company name | Role | # of projects |
|---|---|---|---|
| 21 | Gannett Fleming Inc. | Structural engineering | 0 |
| 22 | Garcia Guzman & Associates | Structural engineering | 1 |
| 23 | Gärderup Byggkonstruktion AB | Structural engineering | 4 |
| 24 | Gardner & Howe | Structural engineering | 2 |
| 25 | Gardner & McDaniel | Structural engineering | 0 |
| 26 | Garfinkel & Marenburg | Structural engineering | 1 |
| 27 | Gargiulo & Assocs | Structural engineering | 1 |
| 28 | Garner & Assocs | Structural engineering | 1 |
| 29 | Garrett/Associates Engineering, Inc. | Structural engineering | 2 |
| 30 | Gates Poore | Structural engineering | 1 |
| 31 | Gay And Loudermilk Engineers Inc | Structural engineering | 1 |
| 32 | Gebau Inc | Structural engineering | 0 |
| 33 | Geciba | Structural engineering | 1 |
| 34 | Geco Engineering & Design | Structural engineering | 0 |
| 35 | GEDAS NV | Structural engineering | 0 |
| 36 | Geelhoed engineering bv | Structural engineering | 2 |
| 37 | Gehl & Jacoby et Associés, SETEC | Structural engineering | 1 |
| 38 | Geiger Engineering | Structural engineering | 1 |
| 39 | Geiger-Berger | Structural engineering | 4 |
| 40 | Gemini PSH | Structural engineering | 2 |