| # | Raison sociale | Rôle | Nombre de projets |
|---|---|---|---|
| 1 | ABCO Builders | bureau d'études fluides | 2 |
| 2 | ABF Consulting Engineers | bureau d'études fluides | 1 |
| 3 | ABF Consulting Engineers | bureau d'études fluides | 2 |
| 4 | Able Engineering Inc. | bureau d'études fluides | 25 |
| 5 | Abraham Joselow Associates PC | bureau d'études fluides | 5 |
| 6 | Abraham Joselow PE, PC | bureau d'études fluides | 8 |
| 7 | ABS Consultants, Inc | bureau d'études fluides | 8 |
| 8 | AB Teknoplan | bureau d'études fluides | 3 |
| 9 | Ace Parking Management | bureau d'études fluides | 6 |
| 10 | ACR Engineering, Inc. | bureau d'études fluides | 6 |
| 11 | Adelt Mechanical Works | bureau d'études fluides | 1 |
| 12 | Advanced Engineering, Inc. | bureau d'études fluides | 1 |
| 13 | Adviesbureau vanderWeele | bureau d'études fluides | 3 |
| 14 | Adviesbureau Wiecherink BV | bureau d'études fluides | 1 |
| 15 | AECOM | bureau d'études fluides | 2 |
| 16 | afaconsult | bureau d'études fluides | 1 |
| 17 | Affiliated Engineers, Inc. | bureau d'études fluides | 32 |
| 18 | A.G. Consulting Engineering PC | bureau d'études fluides | 2 |
| 19 | A & G Engineering Ltd. | bureau d'études fluides | 39 |
| 20 | Ajmani & Pamidi Inc. | bureau d'études fluides | 10 |
