| Company name | Company reg number | SME/VCS | VCS reg number | Postcode |
|---|---|---|---|---|
| AECOM | 1846493 | E1 8FA | ||
| Amelio Utilities (Gloucester) Ltd t/a 3 Counties Drain Services | 03756829 | SME | GL1 4JJ | |
| Buchanan Computing | 3274424 | SME | W6 7AS | |
| Causeway Technologies Ltd | SL8 5AQ | |||
| Fugro GeoServices Limited | 01284352 | OX10 9RB | ||
| Gaist Solutions Limited | 6617206 | SME | FY4 3RL | |
| Kaarbon Technology Ltd | 8304632 | SME | BH22 8LR | |
| Metricell Limited | SME | RH13 5PX | ||
| National Testing Services Ltd | 9860646 | SME | SY14 8LU | |
| Pavement Testing Services Ltd | 7248779 | SME | PO19 8NY | |
| Roadmetrics Ltd | SME | EC1V 2NX | ||
| XAIS Asset Management Ltd | 09537184 | SME | SL5 8QQ |