| Pinnacle Car and Classic Limited | Wholesale & retail | 2020 |
| Pinnacle Construction Services Limited | Construction | 2018 |
| Pinnacle Contracting Limited | Construction | 2022 |
| Pinnacle Stonework Limited | Construction | 2021 |
| Pinner Building Ltd | Construction | 2021 |
| Piokar Ltd | Wholesale & retail | 2019 |
| Pipedream Design Ltd | Professional & scientific | 2019 |
| PIT Jedi BBQ Ltd | Hospitality | 2025 |
| Pitches IT Limited | Information & communication | 2014 |
| Pittman Properties Limited | Real estate | 2016 |
| PIU Stile Limited | Construction | 2017 |
| Pixelheads Ltd | Information & communication | 2025 |
| Pizza 2 Night BR6 Ltd Ltd | Hospitality | 2021 |
| Pizza 2NIGHT Kent Ltd | Hospitality | 2017 |
| PIZZA2NIGHT Orpington Ltd | Hospitality | 2025 |
| PJ Building Works Ltd | Construction | 2026 |
| PJR Limited | Other services | 2024 |
| PK Padel Ltd | Arts & recreation | 2026 |
| PKC Holdings Ltd | Construction | 2018 |
| PKC Properties London Ltd | Real estate | 2021 |
| PKC Property Blackheath Ltd | Real estate | 2021 |
| PKC Property Limited | Real estate | 2013 |
| PL Builders Ltd | Construction | 2018 |
| PL Property Developments Limited | Real estate | 2024 |
| PL Watches Limited | Wholesale & retail | 2019 |
| Place Homes Limited | Real estate | 2020 |
| Place Medical Services Limited | Health & social care | 2011 |
| Plamko Ltd. | Manufacturing | 2015 |
| Plamo Trades Ltd. | Other services | 2018 |
| Plan C Promotions Limited | Other services | 2016 |
| Planet Gears Ltd | Wholesale & retail | 2023 |
| Planet Guitar Limited | Other services | 2013 |
| Planet Office Supplies Limited | Wholesale & retail | 2010 |
| Planetloom Limited | Wholesale & retail | 2026 |
| Plasmarc Ltd | Information & communication | 2020 |
| Plaster House Ltd | Construction | 2020 |
| Platform HG London Limited | Wholesale & retail | 2021 |
| Platform Properties Limited | Real estate | 2017 |
| Platinum Projects Kent Ltd | Construction | 2021 |
| Platinum PS Limited | Construction | 2026 |
| Plousios Ltd | Information & communication | 2011 |
| Plumbers Last Minute Ltd | Construction | 2021 |
| Plumpton Court RTM Company Limited | Households | 2008 |
| Plumtree Veterinary Services Limited | Professional & scientific | 2014 |
| Plush Retreats Ltd | Real estate | 2023 |
| PM & Sons Ltd | Information & communication | 2017 |
| PMG Bloodstock Consultants Limited | Professional & scientific | 2017 |
| PNA Consultancy Limited | Health & social care | 2004 |
| Pnhn Ltd | Wholesale & retail | 2020 |
| Point Controls Ltd | Construction | 2019 |
| Poised London Limited | Other services | 2019 |
| Polaris Healthcare Consulting Ltd | Health & social care | 2026 |
| Polkadot Solutions Ltd | Information & communication | 2017 |
| POM POM Baby Limited | Wholesale & retail | 2012 |
| Ponulak Limited | Extraterritorial | 2024 |
| Poole Waite and Sons (Kent) Ltd | Manufacturing | 2020 |
| Popodeon Ltd | Arts & recreation | 2022 |
| Popular Conservatism Limited | Professional & scientific | 2024 |
| Popular Development Partners Limited | Professional & scientific | 2023 |
| Poriyath PVT Ltd | Transport & logistics | 2019 |
| Porter's Cleaning Services Ltd | Administrative & support | 2023 |
| Portofino London Limited | Construction | 2020 |
| Positive Roofing Services Ltd | Construction | 2026 |
| Poul Belmondo Group Limited | Construction | 2020 |
| Poundspenny Associates Ltd | Professional & scientific | 2021 |
| Poverest Allotments Limited | Arts & recreation | 2019 |
| Powell Capital Management Limited | Financial services | 2025 |
| Powells Housing Limited | Real estate | 2022 |
| Powerhouse Property Consortium Ltd | Real estate | 2021 |
| Poweroftransformation Ltd | Construction | 2025 |
| Ppbmc Ltd | Construction | 2022 |
| PPD Bespoke Ltd | Construction | 2022 |
| Pphomes Limited | Construction | 2018 |
| PR Plumbing & Heating Services Limited | Construction | 2016 |
| PR Solar Window Film Limited | Other services | 2014 |
| Prabhus Enterprise Limited | Information & communication | 2013 |
| Praise House Studios Ltd | Information & communication | 2023 |
| Prajal Ltd | Real estate | 2024 |
| Prakriti Ltd | Construction | 2021 |
| Praniq Wellness Technologies Ltd | Information & communication | 2026 |
| Pranshi Life Sciences Limited | Professional & scientific | 2026 |
| Prash Naik Consulting Limited | Professional & scientific | 2017 |
| Pratibha Smiles Limited | Health & social care | 2024 |
| Pratu Assets Ltd | Real estate | 2023 |
| Pratu Consultancy Services Limited | Information & communication | 2023 |
| Preciousdebz Ltd | Administrative & support | 2009 |
| Precise Building Limited | Construction | 2020 |
| Precision Quality Labs Limited | Information & communication | 2026 |
| Predator Logistics Limited | Administrative & support | 2025 |
| Premier (London) Building Services Ltd | Construction | 2013 |
| Premier City Stays Limited | Real estate | 2026 |
| Premier Decorators & Construction Ltd | Construction | 2017 |
| Premierbuildingworks Ltd | Construction | 2018 |
| Premium Motorcycles Orpington Ltd | Wholesale & retail | 2024 |
| Prep Medics Ltd | Information & communication | 2018 |
| Presanella 1 Limited | Financial services | 2022 |
| Presanella 11 Limited | Financial services | 2016 |
| Presanella 2 Limited | Financial services | 2024 |
| Presanella 3 Limited | Professional & scientific | 2014 |
| Presanella 4 Limited | Financial services | 2017 |