| Poised Concierge Limited | Hospitality | 2020 |
| Polish Academy of Culture and Knowledge | Education | 2016 |
| Polotto FC Ltd | Transport & logistics | 2018 |
| Polymathic Development Ltd | Information & communication | 2024 |
| Poniente Plus Limited | Households | 2021 |
| Ponyo Pictures Limited | Arts & recreation | 2018 |
| Pool Hustlers Ltd | Information & communication | 2021 |
| Popy's Knife Ltd | Hospitality | 2017 |
| Positive Spin International Limited | Education | 2018 |
| Potty Pancakes Ltd | Hospitality | 2013 |
| Potty's Bar & Restaurant Ltd | Hospitality | 2026 |
| POW Building Contractors Limited | Wholesale & retail | 2003 |
| Power Consulting Company Limited | Professional & scientific | 1999 |
| Power for Life Ltd | Manufacturing | 2021 |
| PPT PVT Limited | Financial services | 2025 |
| PR City Construction Limited | Construction | 2021 |
| PR Technologies Ltd | Information & communication | 2022 |
| Prado Contractors UK Ltd | Construction | 2022 |
| Pragnya IT Solutions Limited | Information & communication | 2024 |
| Pragnya Real Estates Ltd | Real estate | 2026 |
| Pragyan Solutions Limited | Hospitality | 2024 |
| Precise 3D Surveys Ltd | Professional & scientific | 2011 |
| Precise Telecom Limited | Information & communication | 2010 |
| Precision Medical Limited | Health & social care | 2017 |
| Precision Partners Limited | Administrative & support | 1999 |
| Preloved Motors Ltd | Wholesale & retail | 2025 |
| Premier Agents Limited | Arts & recreation | 2010 |
| Premier Grounds & Building Care Ltd | Construction | 2024 |
| Premier House Chertsey Ltd | Real estate | 2022 |
| Premier Quality Construction Ltd | Construction | 2023 |
| Premier Refurbishments and Maintenance Limited | Construction | 2025 |
| Premier Style Properties Limited | Real estate | 1997 |
| Premier World Ltd | Professional & scientific | 2013 |
| Premium Avenue Limited | Real estate | 2009 |
| Prepped Fresh London Ltd | Hospitality | 2024 |
| Press Pharmacy Ltd | Wholesale & retail | 2024 |
| Pressed Valet Services Ltd | Other services | 2022 |
| Prestige Crystals Ltd | Wholesale & retail | 2025 |
| Prestige Events Group Ltd | Hospitality | 2024 |
| Priceless Tyres Ltd | Wholesale & retail | 2025 |
| Priest Pendragon Limited | Professional & scientific | 2025 |
| Prime 2020 Ltd | Households | 2020 |
| Prime Deal Management Limited | Real estate | 2024 |
| Prime Deal Online Limited | Wholesale & retail | 2026 |
| Prime Entry Goods Ltd | Wholesale & retail | 2024 |
| Prime Kids Limited | Education | 2015 |
| Prime Office Supplies UK Limited | Wholesale & retail | 2025 |
| Prime Properties (Guildford) Limited | Real estate | 2026 |
| Prime Renewables Ltd. | Energy | 2018 |
| Prime West Cuts Ltd | Other services | 2026 |
| Primecharts Limited | Information & communication | 2011 |
| Primehigh Limited | Information & communication | 2015 |
| Primelink Services Ltd | Wholesale & retail | 2026 |
| Prinil Ltd | Wholesale & retail | 2025 |
| Print Media Distributors Ltd | Manufacturing | 2014 |
| Prism Dynamics Ltd | Professional & scientific | 2025 |
| Prism Security Integration Ltd | Construction | 2011 |
| Prisma Facility Services Ltd | Administrative & support | 2018 |
| Pristine Cleaners London Ltd | Other services | 2021 |
| Private Projects Ltd | Construction | 2021 |
| PRL Media Group Ltd | Information & communication | 2021 |
| Pro ITS Limited | Information & communication | 2004 |
| Pro-Active Physiocare Limited | Public administration | 2025 |
| Proconsul Systems Ltd | Professional & scientific | 2016 |
| Product Pulse IT Ltd | Information & communication | 2025 |
| Production Audio Solutions Limited | Arts & recreation | 2010 |
| Production Voices Limited | Information & communication | 2021 |
| Proietti Design Limited | Professional & scientific | 2009 |
| Prominent Estate & Bridging Capital Limited | Financial services | 2020 |
| Pronto Breakdown Limited | Transport & logistics | 2025 |
| Properties Service Ltd | Households | 2023 |
| Property JK Limited | Construction | 2025 |
| Property Management Overseas Limited | Real estate | 2004 |
| Property Plus Construction Limited | Construction | 2018 |
| Property Plus Investments Limited | Real estate | 2005 |
| Proposta UK Ltd | Wholesale & retail | 2015 |
| Prospect Productions Ltd | Information & communication | 2007 |
| Prosthetic Dental Laboratory Limited | Health & social care | 2011 |
| Protea Accounting Ltd | Professional & scientific | 2024 |
| Protea Ak-Counting Ltd | Administrative & support | 2026 |
| Protouch Maintenance Ltd | Construction | 2025 |
| Provital Wellness Limited | Health & social care | 2025 |
| Proxima Build Ltd | Construction | 2026 |
| Pskk & AJ Associates Limited | Real estate | 2022 |
| PSP Trading Ltd | Wholesale & retail | 2026 |
| Psychic World Publishing Co. Limited | Information & communication | 1993 |
| PT Management Ltd | Administrative & support | 2018 |
| Purana Naturals Ltd | Wholesale & retail | 2024 |
| Pure Plumb Two Ltd. | Real estate | 2018 |
| Purple Mantle Limited | Information & communication | 2018 |
| Purple Resourcing Services Ltd | Information & communication | 2018 |
| Push Teacher Ltd | Education | 2021 |
| PVP Investments Limited | Real estate | 2020 |
| PXE Ltd | Manufacturing | 2024 |
| Pyzh Ltd | Construction | 2022 |
| Qontrac Ltd | Real estate | 2019 |
| Qrewards Limited | Other services | 2025 |
| QS Infotech PVT Ltd | Information & communication | 2016 |
| Quality Tech Cleaning Limited | Administrative & support | 2022 |
| Quantum FEM Ltd | Health & social care | 2024 |