| PMJ International Limited | Manufacturing | 2003 |
| PMU International Ltd | Administrative & support | 2020 |
| PMW Auto Services Ltd | Wholesale & retail | 2024 |
| PMW Automotive Ltd | Wholesale & retail | 2020 |
| PN Plumbing&Tiling Services Ltd | Construction | 2018 |
| Pnyx Limited | Other services | 2021 |
| POD Building Services Ltd | Construction | 2025 |
| Podek Limited | Manufacturing | 2020 |
| Podule Ltd | Professional & scientific | 2013 |
| Poise Palace Limited | Real estate | 2020 |
| POJ Ltd | Transport & logistics | 2022 |
| Polexpress Ltd | Wholesale & retail | 2023 |
| Polite Controls Limited | Professional & scientific | 2015 |
| Polkar Limited | Manufacturing | 2020 |
| Polmech Limited | Wholesale & retail | 2017 |
| Polo PR Ltd | Administrative & support | 2025 |
| Polymerlatex Limited | Manufacturing | 1997 |
| Pom's Floors Limited | Construction | 2024 |
| Pomegranate Kitchens Limited | Hospitality | 2022 |
| Pomfrett Flooring Ltd | Construction | 2018 |
| POP Drylining Ltd | Construction | 2026 |
| Popa Multi Services Ltd | Transport & logistics | 2024 |
| Poppy Field (Steeple Bumpstead) Management Company Limited | Households | 2020 |
| Popup Choir Limited | Arts & recreation | 2017 |
| Portigiva Limited | Administrative & support | 2021 |
| Portman Litigation Limited | Professional & scientific | 2025 |
| Portrail Group Limited | Transport & logistics | 2015 |
| Portway Place (Halstead) Management Company Limited | Households | 2016 |
| POS Centre Limited | Wholesale & retail | 2000 |
| Positive Connection Limited | Energy | 2008 |
| Positive Fire Safety Training Ltd | Education | 2019 |
| Positive Solutions Electrical Ltd | Energy | 2012 |
| Positive Training Ltd | Extraterritorial | 2012 |
| POT Sunshine Ltd | Other services | 2024 |
| Potatworks Ltd | Transport & logistics | 2019 |
| Potter Harlow Ltd | Hospitality | 2025 |
| Potter Street Community Association | Other services | 2009 |
| Potters Mews Management Company (Rumney) Limited | Households | 2010 |
| Poulton Manor (Bebington) Management Company Limited | Households | 2006 |
| Power on Electrical Installation & Maintenance Limited | Construction | 2021 |
| Power on Electrical Installation & Testing Limited | Construction | 2020 |
| Power Play Collective Ltd | Other services | 2026 |
| Powerbreaker Ltd | Extraterritorial | 1965 |
| Powercity Manchester Campus Ltd | Other services | 2019 |
| Powerserve Limited | Extraterritorial | 2009 |
| Powerserve UK Limited | Manufacturing | 2007 |
| Pp&M Building Ltd | Construction | 2021 |
| PPJ Estates Ltd | Real estate | 2026 |
| PPS Plants Hire Ltd | Wholesale & retail | 2025 |
| PPS Solutions Limited | Information & communication | 2002 |
| PR Communications (UK) Ltd | Construction | 2009 |
| PR Construct Ltd | Construction | 2023 |
| Practitionr Ltd | Administrative & support | 2022 |
| Praedium Haus Limited | Financial services | 2026 |
| Praise Communion | Other services | 2006 |
| Precis 548 Limited | Professional & scientific | 1925 |
| Precise Property Solutions Ltd | Construction | 2020 |
| Precisionmultisports Ltd | Education | 2025 |
| Premier Auto Locksmiths Ltd | Wholesale & retail | 2025 |
| Premier Minibus Limited | Transport & logistics | 2024 |
| Premier Painters & Decorators (UK) Ltd | Construction | 2019 |
| Premier Renovations London Ltd | Construction | 2023 |
| Prepsmart Ltd | Wholesale & retail | 2018 |
| Pressmonie Limited | Financial services | 2025 |
| Pressureworx Ltd | Administrative & support | 2022 |
| Prestige Dyers 2022 Ltd | Other services | 2022 |
| Prestige Dyers Ltd | Manufacturing | 2016 |
| Prestige Electrical and Data Services Limited | Construction | 2003 |
| Prestige Finds Ltd | Wholesale & retail | 2024 |
| Prestige Property Investors Ltd | Households | 2022 |
| Prestige Seat Ltd | Administrative & support | 2026 |
| Prezco Ltd | Information & communication | 2024 |
| PRH Engineering Ltd | Manufacturing | 2014 |
| Pribodunke Signature Ltd | Other services | 2026 |
| Price Group Consultancy Ltd | Professional & scientific | 2026 |
| Pride 01 Services Ltd | Construction | 2024 |
| Pride TM Limited | Administrative & support | 2022 |
| Primavera Consulting Services Ltd | Professional & scientific | 2026 |
| Prime 3PL Services Ltd | Wholesale & retail | 2025 |
| Prime Alarms Ltd | Construction | 2026 |
| Prime Build Develop Ltd | Construction | 2023 |
| Prime Creative Content Limited | Professional & scientific | 2018 |
| Prime Finance Ltd | Professional & scientific | 2025 |
| Prime Minds AI Limited | Information & communication | 2025 |
| Prime Patient Transport Services Limited | Transport & logistics | 2021 |
| Prime Properties Consultants Ltd | Real estate | 2018 |
| Prime Roofing and Construction Ltd | Construction | 2018 |
| Prime System Integrated Ltd | Information & communication | 2014 |
| Primekey Investments London Ltd | Hospitality | 2025 |
| Primelinq Ltd | Professional & scientific | 2019 |
| Primestruction (Kent) Limited | Construction | 2021 |
| Primestruction Properties Ltd | Real estate | 2025 |
| Primmal Marketing Limited | Administrative & support | 2024 |
| Primo Direct Limited | Wholesale & retail | 2026 |
| Primo Foods Limited | Wholesale & retail | 2018 |
| Primo Passo Property Ltd | Real estate | 2021 |
| Primus Synergy Limited | Real estate | 2025 |
| Princeps Electronics Limited | Administrative & support | 2006 |
| Print Sourcing UK Limited | Information & communication | 2018 |
| Printable Area Limited | Manufacturing | 2021 |