- 3D Office Clearance London - HP4 1EH
- A+ Teachers Ltd - HP4 2DT
- ABC - Edgware - HP4 1AD
- Access Industries - HP4 3LS
- Ad-Rank Media - HP4 1AG
- Aegis Alarms - HP4 1AG
- Ambrit Ltd - HP4 3QN
- Arrow Valves Ltd - HP4 1TA
- Association of Event Organisers Ltd - HP4 2DJ
- Barcode Technologies - HP4 1EG
- Bunting - Berkhamsted - HP4 1EH
- Colin Lillicrap Associates Ltd - HP4 3JJ
- Columbia Creative - HP4 2BS
- Corporate Payroll Solutions - HP4 1AA
- Cougar Industries Ltd - HP4 1HL
- Cube Lighting & Industrial Design Ltd - HP4 1HL
- e-Magnets UK - HP4 1EH
- Framework Specialist Works Ltd - HP4 1EH
- G & E Automatic Equipment Ltd - HP4 1GE
- Galgo (UK) Limited - HP4 1EF
- Gorgeous Shop Ltd - HP4 3AP
- Graphene Digital Marketing - HP4 3JF
- Graphic Quality Consultancy - HP4 2PS
- HBM EPOS Ltd - HP4 1QR
- Howard Kitchens - HP4 1AL
- L A Design - HP4 2DG
- Magnet Applications Ltd - HP4 1EH
- Matrix Handling Ltd - HP4 2SU
- Mr Gates Fabrication Specialists - HP4 1TA
- Neame & Co - HP4 2BN
- Phillips Direct Ltd - HP4 1EH
- Prime Systems - HP4 2ST
- Prowle & Co Building Surveyors - HP4 2AE
- RH Hall Fabrications - HP4 1EH
- RM Sealers - HP4 1QR
- Ronnie Sunshine Ltd - HP4 1EG
- Safer Food Scores Ltd - HP4 2DJ
- Sensonics Ltd - HP4 1EF
- SKS - HP4 1EG
- SkyStreet Retail - HP4 2AF
- Tape Specialities Ltd - HP4 1EG
- The Gap Partnership - HP4 2ST
- The Light Corporation - HP4 1EF
- Thorn Plant Hire Ltd - HP4 3GY
- Tradelinens Ltd - HP4 2DJ
- Wirefr3 Radio Communications Ltd - HP4 2DJ