| PJ Corporate Travel Ltd | Transport & logistics | 2023 |
| PJ Warburton Consultancy Ltd | Information & communication | 2014 |
| Pjep Holdings Ltd | Other services | 2024 |
| PJH Designs Limited | Professional & scientific | 2018 |
| PJH Groundworks Ltd | Other services | 2018 |
| Pjmm Investment Ltd | Professional & scientific | 2024 |
| PJP66 Technology Ltd | Information & communication | 2025 |
| PJS Property Services Limited | Real estate | 2025 |
| PJT Management Services Ltd | Administrative & support | 1992 |
| PK Film Productions Limited | Other services | 2013 |
| PK Online Sales LMT Ltd | Professional & scientific | 2023 |
| PK Windows & Doors Limited | Transport & logistics | 2006 |
| Pkrem Solutions Ltd | Information & communication | 2020 |
| Plab Coach Limited | Education | 2026 |
| Pladda Consulting Limited | Professional & scientific | 2014 |
| Plan (Holdings) Limited | Financial services | 1985 |
| Plan B Training & Consultancy Limited | Administrative & support | 2005 |
| Plan BRB Limited | Professional & scientific | 2025 |
| Planalto Consultancy Ltd | Administrative & support | 2024 |
| Planet Cabling Ltd | Construction | 2013 |
| Planktun Ltd | Other services | 2021 |
| PLANNING4PADEL Ltd | Professional & scientific | 2012 |
| Planpro Limited | Information & communication | 2004 |
| Planright Projects Limited | Extraterritorial | 2009 |
| Plastal Commercial Limited | Extraterritorial | 1984 |
| Plastic Building Supplies Limited | Extraterritorial | 2021 |
| Plasticboxesuk Limited | Manufacturing | 2021 |
| Plastics Hub Limited | Wholesale & retail | 2020 |
| Platform New Homes Limited | Construction | 1999 |
| Platinum Apartments (UK) Limited | Hospitality | 1999 |
| Platinum Builders Ltd | Construction | 2018 |
| Platinum Electronics Limited | Manufacturing | 2020 |
| Platinum Home Renovations Ltd | Construction | 2019 |
| Platinum Pancakes Limited | Hospitality | 2012 |
| Platinum Partnerships Ltd | Professional & scientific | 2025 |
| Platinum Property Finance Experts Ltd | Real estate | 2023 |
| Platinum Scrum Services Ltd | Information & communication | 2024 |
| Platinum Wealth Management Limited | Financial services | 2005 |
| Platso Limited | Professional & scientific | 2026 |
| Platter Perfecto Ltd | Hospitality | 2020 |
| Play Lane Ltd | Health & social care | 2019 |
| Play Planet Ltd | Arts & recreation | 2025 |
| Play Therapy (UK) - the United Kingdom Society for Play and Creative Arts Therapies Limited | Administrative & support | 2002 |
| Play Therapy International Limited | Administrative & support | 2002 |
| Play.Moore Ltd | Wholesale & retail | 2025 |
| Playerhub Limited | Arts & recreation | 2021 |
| Playerhub Mini Academy Limited | Arts & recreation | 2024 |
| Pleasure Belief Trade Ltd | Wholesale & retail | 2024 |
| Plinth 2000 Limited | Manufacturing | 2000 |
| Plive Germany Limited | Financial services | 2024 |
| Plive Holdco 1 Limited | Financial services | 2020 |
| Plive Holdco 2 Limited | Financial services | 2020 |
| Plive Holdco Limited | Real estate | 2026 |
| Plive UK 1 Limited | Financial services | 2023 |
| Plive UK GP Limited | Real estate | 2026 |
| Plive UK LP | | 2026 |
| Plive UK Topco Limited | Real estate | 2026 |
| PLK Ltd | Information & communication | 2017 |
| PLM Hair Ltd | Other services | 2015 |
| PLM Innovation Limited | Professional & scientific | 2017 |
| Ploutos Investments Limited | Real estate | 2019 |
| PLT Electrical Ltd | Construction | 2025 |
| Plug Social Media Limited | Information & communication | 2021 |
| Plum Personnel Limited | Administrative & support | 2001 |
| Plumb-On Services Limited | Construction | 2017 |
| Plumbable Ltd | Other services | 2018 |
| Plumbpoint Trading Limited | Construction | 2011 |
| Plume of Feathers Garage Limited (the) | Wholesale & retail | 1976 |
| Pluralport Properties Limited | Real estate | 1982 |
| Plus Delta Ltd | Professional & scientific | 2022 |
| Plus Group Property Limited | Real estate | 2017 |
| Plus One LLP | | 2008 |
| Plus UP Ltd | Wholesale & retail | 2021 |
| Plusone Services Ltd | Wholesale & retail | 2023 |
| Plutus Consultants Ltd | Professional & scientific | 2014 |
| Pluvius Limited | Wholesale & retail | 2009 |
| PLW Advisors Limited | Professional & scientific | 2016 |
| PM Agile Limited | Professional & scientific | 2015 |
| PM2 Data Services Limited | Extraterritorial | 2020 |
| PM7INSIGHT Limited | Professional & scientific | 2026 |
| Pmachco Limited | Financial services | 2021 |
| PMB Associates Limited | Manufacturing | 2003 |
| Pmgc Technology Group Limited | Information & communication | 2019 |
| PMJ Investments Limited | Financial services | 2022 |
| PMK Installations Ltd | Construction | 2026 |
| PMM Farming Limited | Agriculture & fishing | 2026 |
| Pmmi Limited | Administrative & support | 2018 |
| PMO Parmar Ltd | Information & communication | 2024 |
| PNB Construction Limited | Construction | 2018 |
| PNP Consulting Ltd | Professional & scientific | 2012 |
| Pockets (Midlands) Ltd | Wholesale & retail | 2025 |
| Podgas Solihull Limited | Construction | 2015 |
| Podia Health Limited | Health & social care | 2019 |
| PODIUM3 Development Limited | Professional & scientific | 2014 |
| Pogsmith Limited | Health & social care | 2014 |
| Point Collectables Ltd | Wholesale & retail | 2019 |
| Point ME to Limited | Financial services | 2020 |
| Point-S Tyres (UK) Limited | Wholesale & retail | 2012 |
| Polcrocan Holdings Limited | Financial services | 2016 |
| Polcrocan Limited | Professional & scientific | 1960 |