| Pinneri Development Ltd | Real estate | 2022 |
| Pinnington Properties Ltd | Real estate | 2013 |
| Pinstone Way Limited | Extraterritorial | 2018 |
| Pint of Science | Education | 2014 |
| Pintilie Ltd | Construction | 2015 |
| Pinwell Limited | Transport & logistics | 2016 |
| Pioneer Connections Limited | Wholesale & retail | 2024 |
| Pioneer Global Services Limited | Information & communication | 2009 |
| Pioneer Interstate Logistics Limited | Transport & logistics | 2025 |
| PIP Trade Ltd | Transport & logistics | 2018 |
| Pipedreams Interiors Limited | Professional & scientific | 2012 |
| Pipefit Solutions Ltd | Construction | 2023 |
| Pipex Procurement Services Limited | Administrative & support | 2006 |
| Piranavi Limited | Hospitality | 2015 |
| Piren Ltd | Hospitality | 2025 |
| Pires Psychological Services Limited | Health & social care | 2014 |
| Pirillion Limited | Real estate | 1998 |
| Pirnia Collections Ltd | Wholesale & retail | 2019 |
| Pisatao & Co. Ltd | Manufacturing | 2020 |
| Pisces Holding Limited | Financial services | 2018 |
| Pista Gold Mills Ltd | Manufacturing | 2026 |
| PIT Capital Ltd | Real estate | 2019 |
| PIT Cleaning Ltd | Administrative & support | 2021 |
| Pita and Co (2013) Limited | Manufacturing | 2013 |
| Pitch Slap Ltd | Professional & scientific | 2025 |
| Piti Ltd | Construction | 2025 |
| Pitruchaya Limited | Wholesale & retail | 2001 |
| Pitstop Branding and Hospitality Group Ltd | Professional & scientific | 2025 |
| Pitstop Valeting Ltd | Other services | 2023 |
| Pivotal Plus Accountants Ltd | Real estate | 2020 |
| Pivotpoint Investments Limited | Professional & scientific | 2023 |
| Pixel Art Studios Limited | Information & communication | 2014 |
| Pixel Estates Ltd | Real estate | 2021 |
| Pixel Homes Group Limited | Real estate | 2025 |
| Pixel Worx Ltd | Information & communication | 2018 |
| Pixelbricks Ltd | Real estate | 2019 |
| Pixelcraft Limited | Professional & scientific | 2025 |
| Pixmore Avenue Management Company Limited | Households | 2008 |
| Pixodesk Limited | Information & communication | 2021 |
| Piyuda Ghanshyam Ltd | Wholesale & retail | 2018 |
| Pizza Chalet Ltd | Hospitality | 2021 |
| Pizza Equipment Holdings Limited | Financial services | 2024 |
| Pizza Equipment Property Limited | Financial services | 2024 |
| Pizza Hub London Ltd | Hospitality | 2020 |
| Pizza Inn Greenford Road Ltd | Hospitality | 2025 |
| Pizza Inn Station Road Ltd | Hospitality | 2025 |
| Pizza Khao Limited | Hospitality | 2025 |
| Pizzavala Limited | Transport & logistics | 2014 |
| PJ Assets Limited | Real estate | 2026 |
| PJ Caterers Limited | Hospitality | 2015 |
| PJ Cutler Consulting Limited | Information & communication | 2013 |
| PJD Investments Ltd | Real estate | 2017 |
| PJH Asset Limited | Wholesale & retail | 2026 |
| PJH Media Limited | Professional & scientific | 2013 |
| PJL Electrical Contractors Ltd | Construction | 2021 |
| PJM Catering Ltd | Hospitality | 2025 |
| PJN Consulting Limited | Professional & scientific | 2024 |
| PJW Project Management Limited | Construction | 2008 |
| PK Hills Ltd | Real estate | 2014 |
| PK Homecare Ltd | Health & social care | 2025 |
| PKB Property Ltd | Real estate | 2026 |
| PKC Services Ltd | Education | 2015 |
| PKD Holdings Ltd. | Financial services | 2018 |
| PKD Properties Ltd. | Real estate | 2018 |
| PKP Realty Ltd | Real estate | 2022 |
| PKP Trading Ltd | Wholesale & retail | 2015 |
| Pkpr Limited | Construction | 2025 |
| PKS Enterprises Ltd | Administrative & support | 2015 |
| Pksr Ltd | Construction | 2025 |
| PKV Ltd | Professional & scientific | 2022 |
| PL Albatross Ltd | Real estate | 2018 |
| PL Bison Ltd | Real estate | 2019 |
| Plain Jane Productions Limited | Information & communication | 2014 |
| Plaistow 1 Ltd | Real estate | 2022 |
| Plaistow 2 Ltd | Real estate | 2022 |
| Plaistow 3 Ltd | Real estate | 2022 |
| Plaistow 3A Ltd | Real estate | 2025 |
| Plaistow Food Stop Ltd. | Wholesale & retail | 2013 |
| Plamen the Plumber Ltd | Construction | 2026 |
| Plan B Training Limited | Public administration | 2014 |
| Plan Demolition Ltd | Construction | 2017 |
| Plan Financial Services Ltd | Financial services | 2022 |
| Planet M Limited | Hospitality | 2004 |
| Planet One Holding (UK) Limited | Financial services | 2021 |
| Planet View Limited | Real estate | 2020 |
| Planetfly Limited | Transport & logistics | 2026 |
| Planmaster Systems Limited | Information & communication | 1977 |
| Planned Wealth Limited | Financial services | 2022 |
| Planned Wealth Management Limited | Financial services | 2020 |
| Plant Elevation Ltd | Professional & scientific | 2021 |
| Plastic Art Ltd | Health & social care | 2024 |
| Plastochem Limited | Wholesale & retail | 2006 |
| Platinum Beauty Clinic Ltd | Administrative & support | 2015 |
| Platinum Heating Limited | Construction | 2011 |
| Platinum Homesaver Property Limited | Real estate | 2020 |
| Platinum IT Limited | Information & communication | 2010 |
| Platinum IT Support Limited | Information & communication | 2019 |
| Platinum LJS Limited | Health & social care | 2021 |
| Platinum Property Associates Limited | Real estate | 2022 |
| Platinum Property Rentals Associates Limited | Real estate | 2023 |