| Pinocandy Ltd | Manufacturing | 2020 |
| Pinpoint Environmental Services Ltd | Professional & scientific | 2019 |
| Pintu Kumar Limited | Construction | 2023 |
| Pioneer International Import/Export Holdings Limited | Professional & scientific | 2013 |
| Pioneer International Import/Export Limited | Transport & logistics | 1997 |
| Pipepros Heating and Plumbing Ltd | Construction | 2025 |
| Pipex 24 Ltd | Construction | 2025 |
| Piramila Jewellery Ltd | Wholesale & retail | 2025 |
| Piranavi Civil Engineering and Consultancy Limited | Professional & scientific | 2019 |
| Pitstop Car Services Limited | Wholesale & retail | 2024 |
| Pivotal Builds LC Limited | Construction | 2020 |
| Pivotal Design & Build Ltd | Construction | 2024 |
| Pixelforce Studio Ltd | Information & communication | 2025 |
| Pixelremix Ltd | Professional & scientific | 2010 |
| Pixl Courier Limited | Wholesale & retail | 2025 |
| Pizza Delicacia Limited | Hospitality | 2023 |
| Pizza Planet (Hayes Town) Limited | Hospitality | 2025 |
| PJ Wholesale Ltd | Wholesale & retail | 2024 |
| PJA Structured Support Services Ltd | Professional & scientific | 2026 |
| PJP Services Ltd | Wholesale & retail | 2018 |
| PK Construction Designer Ltd | Construction | 2022 |
| PK Landscaping Ltd | Construction | 2024 |
| PKM Investments Ltd. | Real estate | 2011 |
| PKS Pizza Ltd | Hospitality | 2024 |
| PL Vehicles Ltd | Wholesale & retail | 2021 |
| Planate Ltd | Construction | 2026 |
| Planet Glazing Ltd | Construction | 2020 |
| Planet Double Glazing Limited | Professional & scientific | 2009 |
| Planet Healthcare Ltd | Manufacturing | 2012 |
| Plant Buy and Sell Ltd | Construction | 2024 |
| PLAT4ORM Consulting Ltd | Professional & scientific | 2025 |
| Platinum Enterprise (London) Ltd | Construction | 2021 |
| Platinum Jewellery UK Limited | Wholesale & retail | 2011 |
| Platinum Lion Limited | Hospitality | 2017 |
| Play and Konnect Ltd | Real estate | 2026 |
| Play With Freedom Ltd | Arts & recreation | 2025 |
| Playtex Playgrounds Ltd | Construction | 2022 |
| Plaza Consulting Ltd | Professional & scientific | 2025 |
| Plea Printers Ltd | Manufacturing | 2026 |
| Plenavita Limited | Wholesale & retail | 2014 |
| Plickee Limited | Information & communication | 2023 |
| Plinius Decorators Ltd | Construction | 2016 |
| PLM Transports Ltd | Transport & logistics | 2025 |
| Plumbing & Heating Pro Ltd | Construction | 2025 |
| Plumtree Building Solutions Limited | Construction | 2014 |
| Plurealty UK Limited | Construction | 2018 |
| Plus 4 Services Ltd | Administrative & support | 2019 |
| Plus 7 Marketing Ltd | Administrative & support | 2025 |
| PM Leparda Ltd | Construction | 2026 |
| PM Premises Ltd | Real estate | 2024 |
| PM Shape Limited | Construction | 2026 |
| PMG Motion Limited | Transport & logistics | 2017 |
| PMI Investments Ltd | Real estate | 2015 |
| Pmjk Capital Ltd | Real estate | 2026 |
| PMK Staffing Limited | Administrative & support | 2025 |
| Pmpb Coaches Ltd | Transport & logistics | 2015 |
| PMW Law Ltd | Professional & scientific | 2025 |
| PNB Investments Limited | Extraterritorial | 2001 |
| Pnkn Properties Ltd | Real estate | 2022 |
| Pnmanpower Ltd | Health & social care | 2019 |
| Pnpo Services. Ltd | Administrative & support | 2018 |
| PNR Holidays Ltd | Transport & logistics | 2024 |
| Pods Express Limited | Wholesale & retail | 2021 |
| Polbud Construction Ltd | Construction | 2013 |
| Pole to Pole Limited | Hospitality | 2019 |
| Poleis Limited | Information & communication | 2025 |
| Pollysys Global Solutions Ltd | Information & communication | 2020 |
| POM POM Homes Limited | Real estate | 2020 |
| Ponmani Services Limited | Water & waste | 2019 |
| Pooja's Boutique Ltd | Other services | 2015 |
| Pool Technology Limited | Administrative & support | 2017 |
| Poornima Sweet Centre & Tandoori Restaurants Limited | Hospitality | 2010 |
| POP Foods Ltd | Hospitality | 2024 |
| POP Pizza WWW Limited | Hospitality | 2026 |
| POP UP Well Limited | Other services | 2022 |
| Popley Chicken Ltd | Hospitality | 2024 |
| Port Management Limited | Administrative & support | 2008 |
| Port Sheerness Limited | Wholesale & retail | 2026 |
| Portable Toilets Hire Ltd | Water & waste | 2019 |
| Portovista Trade Ltd | Wholesale & retail | 2026 |
| Post 'N' Packages Limited | Transport & logistics | 2008 |
| Potts Drylining Ltd | Construction | 2018 |
| Pound Discount Limited | Wholesale & retail | 2009 |
| Poundgarden Limited | Wholesale & retail | 2004 |
| Poundxpence Ltd | Wholesale & retail | 2021 |
| Povpaint Limited | Construction | 2025 |
| Powdered Ltd | Wholesale & retail | 2024 |
| Power Contracts Developments & Construction Limited | Construction | 2021 |
| Powerful Printing Ltd | Manufacturing | 2021 |
| PP Xero Point Ltd | Wholesale & retail | 2024 |
| Pprabh Building Works Ltd | Construction | 2026 |
| PR Investment London Limited | Real estate | 2020 |
| Prab Construction Limited | Construction | 2012 |
| Prab Holdings Ltd | Real estate | 2025 |
| Prab Mortgages Ltd | Financial services | 2024 |
| Prab Property Holdings Ltd | Real estate | 2024 |
| Prabal Landscape & Driveways Ltd | Administrative & support | 2025 |
| Prabeen Limited | Wholesale & retail | 2015 |
| Prabh GUN Properties Limited | Real estate | 2025 |
| Prabh Jandu Trading Ltd | Health & social care | 2013 |