| Peterborough Padel Tree Limited | Wholesale & retail | 2026 |
| Petrofast Metal & Alloys UK Ltd | Wholesale & retail | 2025 |
| Petromec Industrial Maintenance Company Ltd | Construction | 2022 |
| Petrose Limited | Financial services | 2025 |
| Phablessed Limited | Administrative & support | 2018 |
| Phanerosis Locum Limited | Public administration | 2021 |
| Pharmasight Consulting Limited | Professional & scientific | 2022 |
| PHARMOLOGIC2 Limited | Health & social care | 2014 |
| Phase X Ltd | Real estate | 2020 |
| Philwell Limited | Wholesale & retail | 2015 |
| Phoenix Consortium Holding Ltd | Financial services | 2025 |
| Phoenix Marketing Solutionuk Ltd | Professional & scientific | 2026 |
| Phramed Physique Ltd | Other services | 2022 |
| PHU Ltd | Transport & logistics | 2025 |
| Physiofylondon Ltd | Health & social care | 2025 |
| Piano Masters Limited | Administrative & support | 2010 |
| Pianosa Ltd | Wholesale & retail | 2017 |
| Picture Perfect Builds Ltd | Construction | 2024 |
| Pied Piper Environmental Services Ltd | Professional & scientific | 2003 |
| Pinesurf Ltd | Information & communication | 2024 |
| PINKSHOP777 Trading Ltd | Wholesale & retail | 2020 |
| Pinnacle Automatics Limited | Wholesale & retail | 2026 |
| Pinnacle Meridian Ltd | Professional & scientific | 2026 |
| Pinoy Ramblers Club UK Ltd | Wholesale & retail | 2022 |
| Pinoy Tourism London Ltd | Administrative & support | 2026 |
| Pioneer Heart Care Ltd | Health & social care | 2014 |
| Pizza Hubb Ltd | Hospitality | 2026 |
| Pizza Verona House Ltd | Manufacturing | 2023 |
| Pizzasutton Ltd | Hospitality | 2024 |
| Pjchristmastrees Limited | Wholesale & retail | 2025 |
| Pjwood Limited | Hospitality | 2016 |
| PK Accounting Service Ltd | Professional & scientific | 2018 |
| PK Nazir Property Investment Ltd | Real estate | 2020 |
| PK Taxation Service Ltd | Professional & scientific | 2025 |
| Plamen Limited | Construction | 2013 |
| Planitu Limited | Information & communication | 2025 |
| Planning Global Ltd | Construction | 2026 |
| Plans After UK Limited | Arts & recreation | 2023 |
| Plant Babe Ltd | Wholesale & retail | 2023 |
| Platinum Building Limited | Administrative & support | 2015 |
| Platinum Cupcakes Ltd | Manufacturing | 2021 |
| Platinum Properties Solutions Ltd | Real estate | 2019 |
| Plato Invest Ltd | Construction | 2017 |
| Play Tutors Limited | Education | 2019 |
| Play Unique Ltd | Wholesale & retail | 2026 |
| Played Limited | Information & communication | 2016 |
| Plexi London Trading Limited | Wholesale & retail | 2024 |
| Plum Design Ltd | Professional & scientific | 2026 |
| Plumbfitex Limited | Construction | 2024 |
| Plumbing Sage Limited | Construction | 2020 |
| Plumbmaster (SW) Ltd | Construction | 2024 |
| Plumbnest Ltd | Construction | 2014 |
| Plumpoint Limited | Professional & scientific | 2014 |
| Plumtec Heating Ltd | Construction | 2018 |
| PMM Solutions Ltd | Wholesale & retail | 2019 |
| PMW Aviation Economics Limited | Professional & scientific | 2015 |
| PN Commercial Ltd | Real estate | 2024 |
| PN Holdings Ltd | Financial services | 2024 |
| PN Residential Ltd | Real estate | 2024 |
| PNP (Redhill) Ltd | Professional & scientific | 2005 |
| Podiatry Specialist Group Ltd | Health & social care | 2026 |
| Pointcube Limited | Information & communication | 2015 |
| Poise Medical RA Ltd | Professional & scientific | 2017 |
| Poise Trading Company Ltd | Wholesale & retail | 2020 |
| Pol-Meat Trading Limited | Wholesale & retail | 2006 |
| Polish Deco Limited | Construction | 2011 |
| Polish Delicatessen Polonez Limited | Wholesale & retail | 2012 |
| Polyhedron Ltd | Wholesale & retail | 2024 |
| POM Clothing Ltd | Wholesale & retail | 2021 |
| Poplar Construction (UK) Limited | Construction | 2003 |
| Popton Limited | Construction | 2025 |
| Porter's Pest Control Ltd | Administrative & support | 2017 |
| Portland Heights Ltd | Administrative & support | 2016 |
| Portswoodsouth Ltd | Hospitality | 2024 |
| Portugal Patisserie F Ltd | Administrative & support | 2011 |
| Poultons Electrical U.K. Limited | Construction | 2004 |
| Power Alliance Ltd | Wholesale & retail | 2022 |
| Power Frame Construction Ltd | Construction | 2025 |
| Powerhouse Pyrotechnics Ltd | Arts & recreation | 2023 |
| Powerpulse Experts Ltd | Manufacturing | 2019 |
| PP Property Mgmt Ltd | Real estate | 2025 |
| Pramukh Poojan Ltd | Administrative & support | 2024 |
| Prav Tradings Ltd | Wholesale & retail | 2025 |
| Precision CUT Gemstone Ltd | Manufacturing | 2025 |
| Precision Gymnastics Ltd | Arts & recreation | 2023 |
| Predeelz Limited | Wholesale & retail | 2020 |
| Predial Services Limited | Transport & logistics | 2023 |
| Predicta.Ai Ltd | Information & communication | 2020 |
| Premier Cotton Fabric UK Ltd | Wholesale & retail | 2026 |
| Premier GAS London Limited | Construction | 2022 |
| Premier Labs Ltd | Wholesale & retail | 2020 |
| Premier PM Ltd | Information & communication | 2014 |
| Presidential Chauffeurs Ltd | Transport & logistics | 2022 |
| Prestige Beauty & Nails Supply Ltd | Wholesale & retail | 2025 |
| Prestige Beauty London Ltd | Other services | 2020 |
| Prestige Care Home Ltd | Other services | 2023 |
| Prestige Developers Ltd | Real estate | 2023 |
| Prestige Hair & Beauty Ltd | Other services | 2018 |
| Prestige Hair Ltd | Other services | 2020 |
| Prestige IT Services Ltd | Wholesale & retail | 2020 |