| Company name | Company reg number | SME/VCS | VCS reg number | Postcode |
|---|---|---|---|---|
| Applebridge Construction | 08732701 | SME | TS3 6AG | |
| Balfour Beatty | 04482405 | NE4 7YQ | ||
| C R Reynolds Ltd | 1772107 | SME | HU13 0EY | |
| Capita Property & Infrastructure Limited | 2018542 | WC2A 1AF | ||
| Clugston Construction Limited | 681537 | TS17 6AJ | ||
| Colas Ltd | 2644726 | B37 7YB | ||
| Esh Construction Ltd | 2529939 | DH6 5PF | ||
| Eurovia Infrastructure Ltd | 7388667 | RH12 2RW | ||
| Farrans Construction trading as a division of Northstone (NI) Limited | NI4078 | SG8 0SS | ||
| Galliford Try Infrastructure Ltd | 800384 | LE10 3JH | ||
| Hall Construction Services Ltd | 2076179 | SME | DL17 0NF | |
| JN Bentley Ltd | 1085646 | BD23 2QR | ||
| John Graham Construction Ltd | NI3503 | BT26 6HX | ||
| John Sisk & Son (Holdings) Ltd | 241278 | WA1 1RL | ||
| McLaughlin & Harvey | 0027864NI | BT36 4TY | ||
| Morgan Sindall Construction & Infrastucture Limited | 4273754 | CV21 2DW | ||
| Seymour Civil Engineering Contractors Ltd | 1374637 | SME | TS24 0UX | |
| Southbay Civil Engineering Ltd | 6324602 | SME | NE29 8RD | |
| Tarmac Trading Limited - Materials (South West) | 453791 | B37 7ES | ||
| Tarmac Trading Limited - Tarmac CSD | 453791 | B37 7ES | ||
| Tilbury Douglas Construction Limited | 303359 | EC3M 1HD | ||
| William & Henry Alexander (Civil Engineering) Ltd | NI13391 | SME | BT79 7JS |