| PHILLIPS | — | — | — | Open → |
| PICKERSGILL | — | — | — | Open → |
| PICKLES | — | — | — | Open → |
| Piercy Design | Hull | — | — | Open → |
| Pinnacle Builders Leeds Ltd | — | Grahamnash202@hotmail.co.uk | — | Open → |
| PITTAWAY | — | — | — | Open → |
| PJC Builders Ltd | Barnsley | pjc17@me.com | — | Open → |
| PJPS Construction Ltd | Long Riston | — | — | Open → |
| Plan B Planning & Design Consultants | Nr Goole | — | — | Open → |
| Planet Holdings | York | — | — | Open → |
| Planmaster Architectural Services | Nr Selby | — | 01757 630567 | Open → |
| Planning & Design Associates | Stamford Bridge | — | 01759373656 | Open → |
| Planning & Design Partnership | Stamford Bridge | — | — | Open → |
| PLOT S
PORTACLAD | — | — | — | Open → |
| Plymouth City Council | Plymouth | buildcon@plymouth.gov.uk | x | Open → |
| PM WAGSTAFF
LTD | — | — | — | Open → |
| PM WAGSTAFF | — | — | Pete Wagstaff mob. 07976433004 | Open → |
| PM WAGSTAFF | — | — | — | Open → |
| PM WAGSTAFF DEVELOPMENTS LTD | — | — | — | Open → |
| PMUMJULURI PULAVARTI | — | — | — | Open → |
| POLLOCK | — | — | — | Open → |
| PONTING | — | — | — | Open → |
| Poppy Turner | Otley | suewelbourne@outlook.com | — | Open → |
| Porchester Properties | Cawood | — | — | Open → |
| Portsmouth City Council | Portsmouth | — | 02392 834594 | Open → |