| Pocket Lota Ltd | Wholesale & retail | 2025 |
| Pocket Media Holdings Limited | Financial services | 2023 |
| Pocket Rockets Gaming Ltd | Information & communication | 2023 |
| Poda Properties Ltd | Real estate | 2019 |
| Podaru Construction Limited | Construction | 2018 |
| Podur Ltd | Administrative & support | 2017 |
| Poeme Ltd | Hospitality | 2021 |
| Poeta Limited | Professional & scientific | 2013 |
| Poetelea Logistic Limited | Transport & logistics | 2015 |
| Poey Grips Limited | Information & communication | 2017 |
| Pohiko Limited | Wholesale & retail | 2025 |
| Pointers Close Management Company Limited | Households | 1988 |
| Pointfield Advisory T/A Pointfield Accountants Limited | Financial services | 2025 |
| Poland Medical LLP | | 2007 |
| Polar Home Improvements Ltd | Construction | 2014 |
| Polar Vega Ltd | Professional & scientific | 2019 |
| Polaris Consulting Group Ltd | Information & communication | 2014 |
| Polaris Representation Ltd | Administrative & support | 2019 |
| Polcrown Ltd | Administrative & support | 2020 |
| Polidata Ltd | Professional & scientific | 2024 |
| Polish Relocation Services Ltd | Transport & logistics | 2026 |
| Polka DOT Planning Limited | Administrative & support | 2012 |
| Pollock Paediatrics Ltd | Health & social care | 2015 |
| Polly Jane Projects Limited | Administrative & support | 2026 |
| Polo Property Ltd | Real estate | 1998 |
| Polonium Properties Limited | Real estate | 2025 |
| Polski Grips Ltd | Information & communication | 2026 |
| Polskie Centrum Mediacji Ltd | Other services | 2018 |
| Polunin Limited | Information & communication | 2011 |
| Polyarc Ltd | Construction | 2024 |
| Polyhealth Ltd | Manufacturing | 2025 |
| Polymer (UK) Limited | Wholesale & retail | 2007 |
| Polyphonia Publishing Consultancy Ltd | Professional & scientific | 2018 |
| POM Pharma Limited | Other services | 2026 |
| Pontiac Limited | Construction | 2016 |
| Poochies Group Ltd | Professional & scientific | 2024 |
| Pooja Bohara Trading Limited | Wholesale & retail | 2026 |
| Pooja Construction Limited | Construction | 2018 |
| Pooja Entertainment UK Limited | Extraterritorial | 2018 |
| Pooja Investments Limited | Construction | 2022 |
| Pooja P Ltd | Wholesale & retail | 2020 |
| Poornima.Ramesh Limited | Information & communication | 2023 |
| Pooten Forwarding International Limited | Transport & logistics | 2005 |
| POP Consultancy Ltd | Information & communication | 2024 |
| POP UP Gaming Ltd | Arts & recreation | 2019 |
| Popa Builders Ltd | Construction | 2020 |
| Popabubble Limited | Wholesale & retail | 2016 |
| Popal Medical Ltd | Health & social care | 2026 |
| Popaty EMA Limited | Real estate | 2023 |
| Popovichweb Ltd | Information & communication | 2010 |
| Poppins Cleaning Ltd | Other services | 2014 |
| Poppy Build Ltd | Construction | 2026 |
| Poppydale Limited | Real estate | 2002 |
| Poppyfields & Co Ltd | Wholesale & retail | 2013 |
| Poppyrose Jewels Ltd | Wholesale & retail | 2022 |
| Population Services International UK Limited | Health & social care | 2022 |
| Populus Technologies Limited | Financial services | 2019 |
| Porfirio Art Limited | Wholesale & retail | 2019 |
| Porsche Views Ltd | Real estate | 2020 |
| Port Line Shipping Ltd | Transport & logistics | 2025 |
| Port Trader Limited | Extraterritorial | 2016 |
| Portato Services Limited | Education | 2026 |
| Portchester Developments LLP | | 2007 |
| Portchester Properties Limited | Real estate | 2010 |
| Porter Holdings Limited | Construction | 2015 |
| Portgrove Estates Limited | Real estate | 2016 |
| Portland Gold LLP | | 2013 |
| Portland Properties Investments Limited | Real estate | 2025 |
| Portman House Management Company Limited | Households | 2006 |
| Portman London Developments Limited | Construction | 2016 |
| Portman London Limited | Real estate | 2002 |
| Portman Realty Limited | Real estate | 2020 |
| Portman Trade UK Ltd | Wholesale & retail | 1986 |
| Portmaster Properties Limited | Real estate | 2022 |
| Portoarabia Investment Ltd | Real estate | 2021 |
| Portobello Fashion House Ltd | Wholesale & retail | 2026 |
| Portobello Palm Ltd | Real estate | 2023 |
| Portobello Vintage Market Ltd | Wholesale & retail | 2020 |
| Portolano Limited | Transport & logistics | 2013 |
| Portrait Hoye Limited | Administrative & support | 2020 |
| Portrea Construction Ltd | Construction | 2025 |
| Posapt Ltd | Information & communication | 2025 |
| Poseidon Waves Limited | Professional & scientific | 2024 |
| Posh Lawns & Woodworks Ltd | Administrative & support | 2025 |
| Posh Way Ltd | Wholesale & retail | 2019 |
| Poshak London Limited | Wholesale & retail | 2025 |
| Positive & Effective Ltd | Education | 2014 |
| Positive Karma Limited | Professional & scientific | 2019 |
| Positiveitsystems.Co.Uk Limited | Information & communication | 2016 |
| Posner Interiors Limited | Wholesale & retail | 2012 |
| Poss Solutions Ltd | Construction | 2025 |
| Post House Investments Limited | Real estate | 1996 |
| Post Select Limited | Real estate | 2001 |
| Postmymeds Limited | Wholesale & retail | 2015 |
| Potential Unlimited Estate Planning Limited | Administrative & support | 2026 |
| Poti Gardens Ltd | Administrative & support | 2022 |
| Potinghie Mircea Daniel Ltd | Construction | 2026 |
| Potters Cross Ltd | Real estate | 2021 |
| Pound Ring Ltd | Wholesale & retail | 2012 |
| Pound Village Harrow Ltd | Wholesale & retail | 2021 |