| PSM IT Solutions Limited | Wholesale & retail | 2025 |
| PSO Property Group Ltd | Real estate | 2020 |
| Psromel Ltd | Transport & logistics | 2026 |
| PSV (UK) Ltd | Extraterritorial | 2008 |
| Psvh Limited | Professional & scientific | 2013 |
| Psy-Qi Ltd | Professional & scientific | 2020 |
| Psyched APE Ltd | Wholesale & retail | 2026 |
| Psychic Dancehall CIC | Professional & scientific | 2024 |
| PTA Builders Limited | Construction | 2001 |
| PTC Healthcare Ltd | Health & social care | 2024 |
| PTI 1 Ltd | Manufacturing | 2016 |
| PTI Derby Ltd | Manufacturing | 2025 |
| PTI Midlands Limited | Manufacturing | 2018 |
| PTL Properties Limited | Real estate | 1997 |
| PTL Rigging Limited | Information & communication | 2020 |
| Public Health Partners Ltd | Professional & scientific | 2013 |
| Publos Ltd | Hospitality | 2024 |
| Pubright Ltd | Hospitality | 2012 |
| Pudding Properties Ltd | Real estate | 2023 |
| PUK 20 Limited | Professional & scientific | 2020 |
| Pullman Business Court Management Company Limited | Real estate | 2007 |
| Pullman Business Park (Number One) Management Company Limited | Real estate | 2005 |
| Pulse Kickboxing Ltd | Arts & recreation | 2026 |
| Pulse SD Ltd | Wholesale & retail | 2025 |
| Pulse Sticks Ltd | Manufacturing | 2025 |
| Pulse Surveying Limited | Professional & scientific | 2011 |
| Pulsebeat Music Ltd | Education | 2023 |
| Pulseline Electrical Services Ltd | Construction | 2026 |
| Pulvertaft Hand Charity | Health & social care | 2002 |
| Puma Property Services Ltd | Construction | 2024 |
| Pumpnpaddle CIC | Arts & recreation | 2025 |
| Punchperfect Limited | Wholesale & retail | 2025 |
| Punjab Investments Limited | Information & communication | 2006 |
| Punjab Platers Ltd | Hospitality | 2024 |
| Punjab Times Trust Ltd | Information & communication | 2012 |
| Punjabi Pure VEG Limited | Hospitality | 2026 |
| Punjabi Snack Shack Ltd | Hospitality | 2022 |
| PUP UK Holdco 1 Limited | Financial services | 2021 |
| PUP UK Holdco 2 Limited | Financial services | 2021 |
| PUP UK Holdco 3 Limited | Financial services | 2021 |
| Pupo Ltd | Real estate | 2025 |
| Purascope Limited | Professional & scientific | 2020 |
| Pure Assess Limited | Health & social care | 2026 |
| Pure Construction (Midlands) Limited | Construction | 1998 |
| Pure Construction Contractors Ltd | Construction | 2023 |
| Pure Construction Group (Midlands) Ltd | Financial services | 2023 |
| Pure Group (Midlands) Ltd | Financial services | 2022 |
| Pure Holdings (UK) Limited | Financial services | 2007 |
| Pure Potential Journey Limited | Professional & scientific | 2023 |
| Pure Pro Sports Ltd | Wholesale & retail | 2018 |
| Pure Property Solutions (Midlands) Limited | Construction | 2007 |
| Pure Sports Marketing Limited | Administrative & support | 2006 |
| Pure Takeaway Ltd | Hospitality | 2024 |
| Pure Thoughts Ltd | Wholesale & retail | 2012 |
| Pure View Consulting Ltd | Information & communication | 2026 |
| Pureflow Services Limited | Construction | 2017 |
| Purelife Care Services Ltd | Health & social care | 2019 |
| Purely Digital Limited | Manufacturing | 2008 |
| Purely Fit Ltd | Arts & recreation | 2022 |
| Purewal’S AIM to Feed Limited | Hospitality | 2022 |
| Purivanta Services Ltd | Administrative & support | 2026 |
| Purple Forge Limited | Professional & scientific | 2020 |
| Purple Kangaroo Ltd | Real estate | 2018 |
| Purple Rose Logistics Limited | Transport & logistics | 2019 |
| Purple Sage Holistic Therapies Ltd | Water & waste | 2019 |
| Purple Squirrel Consultancy Ltd | Professional & scientific | 2024 |
| Purple Squirrel Storage Limited | Transport & logistics | 2018 |
| Purvis Consultancy Limited | Professional & scientific | 2025 |
| Push London Limited | Information & communication | 2012 |
| Pushing Daisies Ltd | Hospitality | 2025 |
| Puttur Trading Limited | Hospitality | 2023 |
| Pvbt Newco Limited | Administrative & support | 2024 |
| PVC Pro Ltd | Professional & scientific | 2024 |
| PVG DEV Limited | Real estate | 2024 |
| PVT Solutions Ltd | Wholesale & retail | 2025 |
| PW Aldridge Limited | Other services | 2019 |
| PW Defence Ltd | Manufacturing | 1949 |
| PW Home Improvements Ltd | Construction | 2026 |
| PW Martin & Co. Limited | Extraterritorial | 2013 |
| PWD Group Limited | Financial services | 2018 |
| Pwmortgages Ltd | Financial services | 2023 |
| PWP Properties Limited | Professional & scientific | 2011 |
| PWS Patrick's Electrical Services Ltd | Manufacturing | 2026 |
| PWS Projects Limited | Transport & logistics | 2020 |
| Pwya Ltd | Health & social care | 2019 |
| Pxtech Group Limited | Financial services | 2021 |
| Pxtech Limited | Information & communication | 1999 |
| Pyramid Dental Consultancy Limited | Health & social care | 2023 |
| Pyramid GAS Services Ltd | Professional & scientific | 2026 |
| Pyramid Real Estate Ltd | Construction | 2024 |
| Pyrat Ltd | Extraterritorial | 2017 |
| Pyrite Industries International Ltd | Professional & scientific | 2022 |
| Pyrite Industries Ltd | Water & waste | 2014 |
| Pyrmont Property Management Limited | Construction | 2008 |
| Pyrrha Professional Limited | Professional & scientific | 2025 |
| Pytel Logistics Ltd | Transport & logistics | 2018 |
| Pythsoc Ltd | Information & communication | 2014 |
| Q & a Medical Limited | Other services | 2007 |
| Q & D Multimedia Limited | Information & communication | 2011 |
| Q Box Digital Ltd | Construction | 2020 |