| # | Company name | Role | # of Projects |
|---|---|---|---|
| 1 | Adair Associates | quantity surveyor | 0 |
| 2 | Appleyard & Trew LLP | quantity surveyor | 1 |
| 3 | Applus + | quantity surveyor | 1 |
| 4 | ARCADIS AYH PLC | quantity surveyor | 1 |
| 5 | Architectural Cost Consultants, LLC | quantity surveyor | 1 |
| 6 | AYH PLC | quantity surveyor | 10 |
| 7 | Baharuddin Ali & Low Sdn | quantity surveyor | 6 |
| 8 | Baker Hollingworth Associates | quantity surveyor | 1 |
| 9 | Barrie Tankel Partnership PLC | quantity surveyor | 3 |
| 10 | BEC Consultants Quantity Surveyors | quantity surveyor | 1 |
| 11 | Bellamy and Wareham | quantity surveyor | 0 |
| 12 | BHL Associates LLP | quantity surveyor | 1 |
| 13 | Blair Anderson | quantity surveyor | 10 |
| 14 | Blair Anderson Ltd. | quantity surveyor | 0 |
| 15 | Blaygrove Ellis | quantity surveyor | 0 |
| 16 | Blaygrove Ellis | quantity surveyor | 0 |
| 17 | B&L Quantity Surveyors | quantity surveyor | 1 |
| 18 | B&M | quantity surveyor | 0 |
| 19 | Brack Meekins Partnership | quantity surveyor | 0 |
| 20 | Bridgewater & Coulton Limited | quantity surveyor | 0 |