| Company name | Company reg number | SME/VCS | VCS reg number | Postcode |
|---|---|---|---|---|
| Balfour Beatty Construction Limited | SC106247 | ML1 4WQ | ||
| BAM Construction | 2379469 | HP2 4FL | ||
| Bouygues UK Limited | 3460378 | SE1 7EU | ||
| Bowmer & Kirkland Ltd | 0701982 | DE56 2BW | ||
| Conlon Construction Limited | 0708997 | SME | PR5 6BE | |
| Eric Wright Construction | 0190204 | PR5 6AW | ||
| ISG Construction Ltd | 450103 | M17 1FQ | ||
| John Graham Construction Ltd | NI3503 | BT26 6HX | ||
| Kier Construction Limited - Build UK | 2099533 | M50 3XP | ||
| Laing O'Rourke | 04222545 | M33 7JR | ||
| Seddon Construction Ltd | 3578140 | BL4 0NN | ||
| VINCI CONSTRUCTION UK LTD. | 2295904 | WD24 4WW | ||
| Wates Construction | 01977948 | KT22 7SW |