| Company name | Company reg number | SME/VCS | VCS reg number | Postcode |
|---|---|---|---|---|
| AECOM | 1846493 | E1 8FA | ||
| Align Property Partners | 10385861 | SME | DL6 2NA | |
| Arcadis Consulting (UK) Limited | 2212959 | EC3M 4BY | ||
| AtkinsRéalis Limited | 688424 | KT18 5BW | ||
| AtkinsRéalis PPS Limited (formerly Faithful+Gould Limited) | 2236832 | SW1E 5BY | ||
| Billinghurst George & Partners | 8935889 | SME | TS18 3TA | |
| Capita Business Services Ltd | 500191747 | EC2V 7NQ | ||
| Capita Property & Infrastructure Limited | 2018542 | WC2A 1AF | ||
| Cundall Johnston and Partners | OC300389 | NE3 3AF | ||
| DPP One Ltd | 8129507 | SME | CF11 9LJ | |
| Elvet Construction Consultants | 6304855 | SME | DH1 1TW | |
| Fairhurst | G2 4GZ | |||
| Gardiner & Theobald LLP | OC307124 | WC1E 7BD | ||
| Gleeds Management Services Limited | 01753465 | W1W 6XF | ||
| Gotch Saunders & Surridge t/a GSSArchitecture | 0336029OC | SME | NN15 7ES | |
| GT3 Architects | 6475903 | SME | NE2 1DB | |
| Henry Riley LLP | OC334120 | SME | CR0 2AP | |
| Howarth Litchfield Partnership | 4661899 | SME | DH1 1TW | |
| Hydrock | 3118932 | BS32 4DF | ||
| Identity Consult | 5416411 | SME | SR5 2AQ | |
| Jacobs U.K. Limited | 2594504 | SE1 2QG | ||
| JBA Consulting | 03246693 | BD23 3FD | ||
| Lynas Engineers | 10442488 | SME | TS6 6XH | |
| MAC Construction Consultants Ltd | 6901841 | SME | LS2 7EY | |
| Mason Clark Associates Ltd | 2537113 | SME | HU5 2DW | |
| Mott MacDonald Ltd | 1243967 | CR0 2EE | ||
| Nathaniel Lichfield and Partners | 2778116 | SME | N/A | EC3R 7AG |
| Ove Arup & Partners Ltd | 1312453 | W1T 4BJ | ||
| P+HS Architects | 5020036 | SME | TS9 7AB | |
| Pell Frischmann Consultants Ltd | 1777946 | WC2R 0DW | ||
| Portland Consulting Engineers | 5093789 | SME | ne11 9sy | |
| Rider levett Bucknall UK Ltd | 4653580 | B3 2BH | ||
| RPS | 02947164 | OX14 4SH | ||
| Shuttleworth PIcknett & Associates t/a SPA Architects | OC301337 | SME | TS9 5PY | |
| Space Architects | 4674960 | SME | NE7 7LX | |
| Stantec UK Ltd | OC334398 | HP11 1JU | ||
| Storm Tempest | 5398802 | SME | NE31 2ES | |
| Summers Inman Construction and Property Consultants | OC303181 | SME | NE13 9BA | |
| Sweco UK Limited | 02888385 | LS7 4DN | ||
| Turner and Townsend | NE1 4SN | |||
| Waterman Infrastructure & Environment Ltd | 3269195 | N/A | B3 2DX | |
| WSP UK Limited | 01383511 | WC2A 1AF |