5 active stations Source: DVSA active stations register, retrieved 2026-10-10.
HP area pass rate, 2024: 85.4% — 686,868 decisive tests (DVSA anonymised results; area figure, not per-station).
| Station | Address | Postcode | Classes |
|---|---|---|---|
| D & P Motors Limited | Unit 31 Soho Crescent Soho Mills Industrial Estate Wooburn Green | HP10 0PG | Class 1, Class 2, Class 3, Class 4, Class 5, Class 7 |
| Reliance Auto Test Ltd | Unit 4 Premacto Works Queensmead Road Loudwater | HP10 9XA | Class 1, Class 2, Class 3, Class 4, Class 5, Class 7 |
| Throttle Motors Ltd | The Ford Centre Whitehall Garage , London Road Wooburn Green | HP10 0NJ | Class 1, Class 2, Class 3, Class 4, Class 5, Class 7 |
| The Penn Motor Company | 36 Hazlemere Road Penn | HP10 8AD | Class 1, Class 2, Class 3, Class 4, Class 5, Class 7 |
| Citygate Van Centre | Holtspur Lane | HP10 0AU | Class 1, Class 2, Class 3, Class 4, Class 5, Class 7 |