| POSKITT FARMERS &GROWERS | — | — | — | Open → |
| POWELL | — | — | — | Open → |
| Powys County Council | Powys | buildingcontrol@powys.gov.uk | 01597 827361 | Open → |
| PREACE | — | — | — | Open → |
| PRENTICE | — | — | — | Open → |
| Prestige Design (Tony Eyles) | Leeds | tony.eyles@sky.com | — | Open → |
| Prestige Projects Ltd T/A | Leeds | sharrocks.sons@hotmail.co.uk | — | Open → |
| Preston City Council | Preston | buildingcontrol@preston.gov.uk | x | Open → |
| PRICE | — | — | — | Open → |
| PRIESTLEY | — | — | — | Open → |
| PRITCHARD | — | — | — | Open → |
| Progressive Architecture | Slaithwaite | — | — | Open → |
| Project4 | Barlow | enquiries@project-4.co.uk | — | Open → |
| Purbeck District Council | Dorset | buildingcontrol@purbeck-dc.gov.uk | 01929 557269 | Open → |
| PURCELL | — | — | — | Open → |
| Pure Collection | Harrogate | — | — | Open → |
| PYNN | — | — | — | Open → |
| QUAILE | — | — | — | Open → |
| QUIGLEY | — | — | — | Open → |
| R & E Falkingham Ltd | Kelfield | info@falkinghamjoinery.co.uk | — | Open → |
| R & J Haldenby | Nr Selby | — | — | Open → |
| R & MRS WILLIAMSON | — | — | 01377255371 | Open → |
| R B Guest | Market Weighton | — | 01430871198 | Open → |
| R C Hirst-Johnson | Goole | — | Rebecca Johnson 07580 050 616 | Open → |
| R DUDLEY | — | — | — | Open → |