| Company | Headquarters / Registered Office | Nature of Business | Rank | Map |
| STREETWAYS SERVICES LIMITED |
BELL WALK HOUSE HIGH STREET UCKFIELD EAST SUSSEX TN22 5DQ |
4512 - Test drilling and boring |
0.0407 | |
| D.H.D. STRUCTURAL LIMITED |
GREAT HAVEN QUICKBOURNE LANE NORTHIAM RYE EAST SUSSEX TN31 6QY |
0.0281 | ||
| IN SITU SITE INVESTIGATION LIMITED |
13 VALE ROAD BATTLE EAST SUSSEX TN33 0HE |
4512 - Test drilling and boring |
0 |
| Level 1 |
Construction |
| Level 2 |
Specialised construction activities |
| Level 3 |
Demolition and site preparation |
| Level 5 |
Site preparation Test drilling and boring |