| PC index | Shropshire |
| PC Ink | North Yorkshire |
| PC Jen Ltd | |
| PC Maritime Ltd | Devon |
| PC PAL Franchising Ltd | West Midlands |
| PC Pal Ltd | |
| PC Partners | Hampshire |
| PC Practitioners | |
| PC Problem Solver Bedford | |
| PC Repair Guru | |
| PC Repair Man | |
| PC Repair Swansea | |
| PC Rescue Squad | Greater London |
| PC Revamp | |
| PC Serve | |
| PC SOS 24-7 | Greater Manchester |
| PC Specialist Ltd | West Yorkshire |
| PC Upgrade | Greater Manchester |
| PC Wizard UK | Hertfordshire |
| PC Workshop | |
| PC Wranglers | |
| PC-Control Ltd | Northamptonshire |
| PC-Dial-A-Fix | |
| PC-Man | |
| PC-Repair | |
| PC-SPEC | |
| PCA Engineers Ltd | Lincolnshire |
| PCB Train | Berkshire |
| PCBreak | |
| PCE Automation Ltd | Suffolk |
| PCI Pal | |
| PCICase UK Ltd | Buckinghamshire |
| PCL Health | |
| PCM Systems Ltd | |
| PCPROTECH | Kent |
| PCR Biosystems Ltd | |
| PCRC | |
| PCS Business Systems | Northamptonshire |
| PCS Cables | Dorset |
| PCServices | Kent |
| PCSG (Merseyside) Ltd | Merseyside |
| PDC Ltd | Warwickshire |
| PDMS Ltd | Isle of Man |
| PDR International Centre for Design and Research | |
| PDS Communications Ltd | Kent |
| PE.fiberoptics Ltd | Berkshire |
| Peak AI Ltd | Greater Manchester |
| Peak Analysis & Automation | |
| Peak Communications Ltd | West Yorkshire |
| Peak Demand Ltd | Suffolk |