| Platinum GAS Services Limited | Other services | 2018 |
| Platinum Motor Hub Ltd | Wholesale & retail | 2026 |
| Platinum Powersports Limited | Professional & scientific | 2017 |
| Platinum Progression Limited | Construction | 2024 |
| Platinum Travels Ltd | Transport & logistics | 2025 |
| Platts Aviation Ltd | Manufacturing | 2018 |
| Playex Limited | Information & communication | 2014 |
| Playlincs Limited | Real estate | 2003 |
| Plaza Properties (Peterborough) Ltd | Real estate | 2022 |
| Plazacarpetcleaning Ltd | Administrative & support | 2026 |
| Pleasant Dale Residents Company Limited | Households | 2001 |
| Pleasant Hill Properties Limited | Administrative & support | 2004 |
| Pleasant News Ltd | Wholesale & retail | 2012 |
| Ples GMN Ltd | Construction | 2022 |
| Plesgo Trading Company Ltd. | Manufacturing | 2025 |
| Plot 13 Cygnet Business Park Management Company Limited | Households | 2005 |
| Plough Inns Wilsford Limited | Hospitality | 2021 |
| Plover Consulting Limited | Professional & scientific | 2011 |
| Plover Limited | Administrative & support | 2000 |
| Plowright Farms Limited | Real estate | 1997 |
| PLP Lift Trucks Peterborough Limited | Manufacturing | 1999 |
| PLR Consulting Limited | Hospitality | 2018 |
| PLS Consultancy Services Limited | Professional & scientific | 2017 |
| Pltc Limited | Wholesale & retail | 2018 |
| Plumb Call Plumbing & Heating Limited | Construction | 2003 |
| Plumb IT Huntingdon Limited | Wholesale & retail | 2024 |
| Plumb-Help Ltd | Construction | 2023 |
| Plumbex(Uk) Ltd | Construction | 2016 |
| Plumbgas 24-7 Ltd | Construction | 2025 |
| Plumbheatcall Ltd | Construction | 2022 |
| Plumstone Ltd | Wholesale & retail | 2025 |
| Plumview Limited | Water & waste | 1982 |
| Plus Leisure UK Limited | Arts & recreation | 2017 |
| Plus Performance Garage Ltd | Wholesale & retail | 2021 |
| Pluspower Limited | Wholesale & retail | 2003 |
| Plutus Homes Limited | Real estate | 2015 |
| Plymouth Agencies Limited | Professional & scientific | 2001 |
| PM Bookkeeping Services Limited | Professional & scientific | 2018 |
| PM Detailing Limited | Construction | 2013 |
| PM Motors Limited | Wholesale & retail | 2020 |
| PM Roglaic Ltd | Wholesale & retail | 2026 |
| PM Transport Logistics Ltd | Transport & logistics | 2023 |
| PMC Ventures Property Hawton Limited | Real estate | 2015 |
| PMD Engineering Management Services Ltd | Manufacturing | 2014 |
| Pmgc Trading Limited | Hospitality | 2016 |
| PMH Property Services Ltd | Construction | 2024 |
| PMH97 Limited | Other services | 1997 |
| Pmhd Investments Ltd | Real estate | 2023 |
| PMI Estate Limited | Real estate | 2025 |
| Pmms Management Solutions Ltd | Professional & scientific | 2017 |
| Pmmw Ltd | Transport & logistics | 2013 |
| PMO Laboratory Ltd | Administrative & support | 2008 |
| PMT Digital Ltd | Administrative & support | 2005 |
| PMV Trans Services Ltd | Transport & logistics | 2016 |
| PN Geometric Ltd | Real estate | 2021 |
| Pneumatechnique Limited | Manufacturing | 1988 |
| PNK Hospitality Limited | Hospitality | 2022 |
| PNM Kits Limited | Wholesale & retail | 2016 |
| Pnpj Ltd | Construction | 2014 |
| Pobl Consulting Ltd | Professional & scientific | 2013 |
| Pocket Sergeant Limited | Wholesale & retail | 2017 |
| Poclain Hydraulics Limited | Manufacturing | 1979 |
| POD Partnerships Ltd | Financial services | 2024 |
| POD Polo Ltd | Agriculture & fishing | 2004 |
| Poder Solutions Ltd | Manufacturing | 2025 |
| Point One Global Investment Limited | Financial services | 2018 |
| Poise Dental Ltd | Health & social care | 2021 |
| Pokom Ltd | Professional & scientific | 2024 |
| Pol-Tom Trans Ltd | Transport & logistics | 2024 |
| Polapor Transports Ltd | Transport & logistics | 2019 |
| Polbud ( UK ) Ltd | Wholesale & retail | 2016 |
| Polebrook Arms Northants Ltd | Hospitality | 2021 |
| Poles House & Court Management Limited | Real estate | 2003 |
| Poli Capital Ltd | Financial services | 2024 |
| Policy Mined Ltd | Professional & scientific | 2024 |
| Policy Publications Limited | Information & communication | 1986 |
| Polish Bistro Ltd | Hospitality | 2019 |
| Polish Cooking Ltd | Hospitality | 2021 |
| Polish Deli Peterborough Ltd | Wholesale & retail | 2014 |
| Polish Shop Ltd | Wholesale & retail | 2020 |
| Poll's Yard M.C. Limited | Administrative & support | 1994 |
| Pollensa Holdings Limited | Financial services | 2025 |
| Pollensa Insurance Services Limited | Financial services | 2021 |
| Polmen Limited | Transport & logistics | 2013 |
| Polmis Ltd | Wholesale & retail | 2020 |
| Polmo-Rys Ltd | Transport & logistics | 2025 |
| Polok Trans Ltd | Transport & logistics | 2021 |
| Polom Lounge Bar Ltd | Hospitality | 2026 |
| Polysafe Barriers and Blocks Limited | Extraterritorial | 2010 |
| Polysafe Level Crossing Systems Limited | Manufacturing | 1991 |
| Pomaah Limited | Wholesale & retail | 2022 |
| Pomona's Produce Ltd | Wholesale & retail | 2023 |
| Pondersbridge Management Limited | Households | 2003 |
| Ponga Fern Properties Ltd | Real estate | 2022 |
| Ponite Ltd | Wholesale & retail | 2022 |
| Ponto DE Amigos 2 Limited | Hospitality | 2020 |
| Ponto DE Amigos Ltd | Hospitality | 2019 |
| Pony Perfect Ltd | Agriculture & fishing | 2025 |
| Poole House Properties Limited | Real estate | 2021 |
| POP Cars Ltd | Wholesale & retail | 2024 |