| Pmurali Limited | Construction | 2023 |
| PNA Legal Ltd | Professional & scientific | 2020 |
| PND Homes Ltd | Real estate | 2021 |
| Pnpd IT Solutions Limited | Information & communication | 2016 |
| Poac Construction Ltd | Construction | 2012 |
| Poder UK Limited | Professional & scientific | 2025 |
| POI Solutions Limited | Professional & scientific | 2014 |
| Polaris E- Content Ltd | Information & communication | 2021 |
| Polihim-Ss UK Limited | Water & waste | 2014 |
| Polini UK Limited | Wholesale & retail | 2025 |
| Pollard Motor Engineers Limited | | 1960 |
| Polo Properties Ltd | Construction | 2014 |
| Poly Languages Ltd | Extraterritorial | 2011 |
| Poly Properties Ltd | Hospitality | 2021 |
| Polypec Enterprises Global Limited | Professional & scientific | 2008 |
| Pongees Limited | Wholesale & retail | 1931 |
| Ponswood Supplies (GB) Ltd | Manufacturing | 2017 |
| POP Clinics Limited | Health & social care | 2025 |
| Popjay Limited | Wholesale & retail | 2025 |
| Popoola Legacy Properties Ltd | Real estate | 2025 |
| Popplety Ltd | Real estate | 2016 |
| Popx Ltd | Information & communication | 2018 |
| Porikka Ltd | Information & communication | 2023 |
| Porter and PIE PUB Co Limited | Hospitality | 2026 |
| Porter Group Limited | Financial services | 2018 |
| Porters Associates Ltd T/A True Colours Limited | Wholesale & retail | 2014 |
| Porterson Limited | Professional & scientific | 2019 |
| Portfolio by Knight Ltd | Real estate | 2021 |
| Portway Storage Solutions Ltd | Transport & logistics | 2015 |
| Poseidon Security Group Limited | Administrative & support | 2020 |
| Poseidon Security Special Services Ltd | Administrative & support | 2018 |
| Posh Events Ltd | Hospitality | 2025 |
| Positive Regard Limited | Health & social care | 2021 |
| Positivo CC Ltd | Financial services | 2019 |
| Posterity Sake Ltd | Real estate | 2021 |
| Poundcare Ltd | Extraterritorial | 2006 |
| Pouya Ltd | Wholesale & retail | 2024 |
| Powah Limited | Wholesale & retail | 2023 |
| Power Horizon Limited | Construction | 2025 |
| Powerhands Electrical Limited | Construction | 2025 |
| Powerhouse North Ltd | Financial services | 2023 |
| Powerplan Holdings Limited | Construction | 1982 |
| Powhatan Publications Ltd | Information & communication | 2017 |
| Pozano Ltd | Wholesale & retail | 2025 |
| PP Catering Ltd | Hospitality | 2011 |
| PP Consulting Ltd | Information & communication | 2012 |
| PP Powdercoaters Ltd. | Construction | 2013 |
| PP Projects Consultancy Ltd | Professional & scientific | 2012 |
| Ppenev Ltd | Construction | 2020 |
| PPF Servicing Limited | Administrative & support | 2006 |
| PPM Health Ltd | Health & social care | 2025 |
| Prabhakar Investments U.K Ltd | Real estate | 2026 |
| Practice Your Peace Ltd | Education | 2025 |
| Pragmatic Test Consulting Ltd | Professional & scientific | 2018 |
| Pramila Property Group Ltd | Real estate | 2026 |
| Prasad Inc Ltd | Hospitality | 2012 |
| Prasan Technologies Ltd | Information & communication | 2017 |
| Prathi Ltd | Information & communication | 2025 |
| Prawn Hub & Burger Ltd | Hospitality | 2025 |
| Pre-Construct Group Limited | Construction | 2023 |
| Preagree Ltd | Construction | 2019 |
| Precious Concept Limited | Wholesale & retail | 2024 |
| Preciseit Ltd | Information & communication | 2022 |
| Precision Catering and Hospitality Ltd | Hospitality | 2020 |
| Precision Joinery Limited | Manufacturing | 2010 |
| Precision Monitoring Solutions Ltd | Construction | 2025 |
| Precision Panel Craft Limited | Wholesale & retail | 2020 |
| Precision Projects and Management Ltd | Construction | 2019 |
| Precision Property & Finance Limited | Financial services | 2025 |
| Predave Ltd | Health & social care | 2013 |
| Prefort Consult Ltd | Information & communication | 2019 |
| Premier Building East Anglia Ltd | Construction | 2020 |
| Premier Care Living Limited | Administrative & support | 2025 |
| Premier Engineering Corporation Limited | Professional & scientific | 2014 |
| Premier Recruitment Group Limited | Administrative & support | 2021 |
| Premier Zenith T Ltd | Wholesale & retail | 2019 |
| Premier Zenith TT Ltd | Wholesale & retail | 2026 |
| Premium Quality Cleaning Service Ltd | Administrative & support | 2022 |
| Premium Workwear Ltd | Wholesale & retail | 2024 |
| Premius Limited | Information & communication | 2022 |
| Premshanth Limited | Professional & scientific | 2022 |
| Prestige Admin Solutions Ltd | Administrative & support | 2014 |
| Prestige Asphalting UK Limited | Construction | 2019 |
| Prestige Garden Maintenance Ltd | Professional & scientific | 2021 |
| Prestige Health Solutions Ltd | Health & social care | 2025 |
| Prestige Mercedes Ltd | Wholesale & retail | 2018 |
| Prestigeelitestays Ltd | Real estate | 2024 |
| Preston IT Consulting Ltd | Other services | 2021 |
| PRI Elegance Ltd | Wholesale & retail | 2025 |
| Pricefair (Kent) Limited | Wholesale & retail | 2012 |
| Pricer Uk&I Ltd | Information & communication | 2024 |
| Prima Coffee Management Services Limited | Hospitality | 2016 |
| Primary Flow Ltd | Construction | 2018 |
| Prime Building Services Limited | Construction | 2020 |
| Prime Construct Limited | Construction | 2020 |
| Prime FM Services Ltd | Administrative & support | 2025 |
| Prime Food Solutions Ltd | Wholesale & retail | 2017 |
| Prime Health Care Services Ltd | Health & social care | 2026 |
| Prime Kitchen & Bathrooms Ltd | Construction | 2025 |
| Prime Lifts & Construction Ltd | Construction | 2021 |