| Prash Developments Limited | Construction | 2024 |
| Prebs PVT Ltd | Health & social care | 2023 |
| Precise Experts Ltd | Professional & scientific | 2025 |
| Precision Tax Solutions Ltd | Professional & scientific | 2024 |
| Preeti Catering Limited | Hospitality | 2003 |
| Preeti Events Limited | Hospitality | 2009 |
| Preeti Plates Limited | Administrative & support | 2010 |
| Prema Enterprises Limited | Health & social care | 2026 |
| Premier Computing Limited | Information & communication | 2010 |
| Premier Solaris Solutions Ltd | Information & communication | 2012 |
| Premier UK Properties Ltd | Real estate | 2013 |
| Premium Auto Detailing Ltd | Administrative & support | 2024 |
| Premium Care Healthcare Ltd | Health & social care | 2022 |
| Premium Leather Garments Limited | Wholesale & retail | 2017 |
| Premium Suites Limited | Real estate | 2026 |
| Prested Investments Holdings Limited | Real estate | 2025 |
| Prested Investments Ltd | Real estate | 2001 |
| Prestige Coffee House Ltd | Hospitality | 2024 |
| Prestige Enterprises EC Limited | Real estate | 1992 |
| Preston HPI 11 Ltd | Real estate | 2019 |
| Preston HPI 12 Ltd | Real estate | 2019 |
| Preston HPI 13 Ltd | Real estate | 2019 |
| Prev-Tection Ltd | Administrative & support | 2026 |
| Prime Asset Group Limited | Real estate | 2025 |
| Prime Capital Investors Limited | Financial services | 2024 |
| Prime Hire Recruitment Ltd | Administrative & support | 2026 |
| Prime Impex Limited | Wholesale & retail | 2002 |
| Prime Italian Ltd | Hospitality | 2024 |
| Prime Time After School Club Ltd | Education | 2016 |
| Prime Windows Doors & Conservatories Ltd | Construction | 2023 |
| Primepeak Ltd | Real estate | 2025 |
| Primeroots Holdings Limited | Financial services | 2024 |
| Principium UK Limited | Information & communication | 2009 |
| Print My Brands Ltd | Manufacturing | 2022 |
| Print Zone Limited | Manufacturing | 2011 |
| Printers Incorporated Limited | Manufacturing | 1996 |
| Prints and Tints Limited | Construction | 2020 |
| Priory Court Developments Limited | Hospitality | 1984 |
| Priory Park RHC Ltd | Real estate | 2024 |
| Priory Restoration (UK) Limited | Construction | 2014 |
| Prismatiq Limited | Information & communication | 2026 |
| Priso Consulting Limited | Information & communication | 2014 |
| Pristine Jets Ltd | Construction | 2021 |
| Pristine Waste Clearance Ltd | Water & waste | 2026 |
| Pristine Waste Management Ltd | Water & waste | 2026 |
| Privacy Laws & Business (Recruitment) Limited | Administrative & support | 2016 |
| Privacy Laws & Business Limited | Information & communication | 2020 |
| Private Cleaning Oxfordshire Limited | Other services | 2012 |
| Pro Build Surrey Ltd. | Construction | 2014 |
| Pro Health Physiotherapy Clinic Ltd | Health & social care | 2015 |
| Pro Parts (UK) Limited | Financial services | 2014 |
| Pro Rigging Film&Television Ltd | Construction | 2024 |
| Pro-Active Accountancy Services Limited | Professional & scientific | 1997 |
| Probe Consultancy Ltd | Information & communication | 2013 |
| Procarcustoms Limited | Construction | 2021 |
| Procare London Limited | Administrative & support | 2022 |
| Proconsultants International Ltd | Administrative & support | 2017 |
| Procurie Limited | Information & communication | 2024 |
| Professional Providers Limited | Households | 2019 |
| Professional Services 365 Ltd | Wholesale & retail | 2023 |
| Proficientpicks Ltd | Other services | 2023 |
| Project GDB Limited | Hospitality | 2026 |
| Prolight Direct Limited | Administrative & support | 2011 |
| Proma Developments Limited | Real estate | 2012 |
| Promenade Smiles Design Ltd | Health & social care | 2025 |
| Promoveritas Digital Limited | Information & communication | 2022 |
| Promoveritas Group Holdings Limited | Administrative & support | 2023 |
| Promoveritas Holdings Limited | Administrative & support | 2014 |
| Promoveritas Limited | Administrative & support | 2002 |
| PROPER3 Limited | Real estate | 2021 |
| Property & Assets Solutions | | 1988 |
| Property AV Limited | Real estate | 2011 |
| Property by SJ Limited | Real estate | 2022 |
| Property Connect Ltd | Real estate | 2009 |
| Property Investment KM Limited | Real estate | 2025 |
| Property Mend Services Ltd | Real estate | 2023 |
| Property Project Finance Ltd | Extraterritorial | 2010 |
| Property Sourcing Company Limited | Real estate | 2013 |
| Property Trading Circle Limited | Real estate | 2026 |
| Propertyjinni Ltd | Information & communication | 2023 |
| Propertylawuk.Net Limited | Professional & scientific | 2013 |
| Propertywide 19 Limited | Real estate | 2020 |
| Prora Limited | Professional & scientific | 2019 |
| Prosec & Co London Ltd | Hospitality | 2019 |
| Prospect (Ridge) Garage Limited | Wholesale & retail | 2023 |
| Prospect Homes Limited | Construction | 2014 |
| Prospect Road Motors Limited | Wholesale & retail | 2024 |
| Protect and Help the Poor and Needy International Limited | Health & social care | 2023 |
| Prsnce Limited | Financial services | 2021 |
| Prudentia Advisory Limited | Professional & scientific | 2012 |
| PS Dental Limited | Health & social care | 2014 |
| PS Dream Home (2026) Limited | Wholesale & retail | 2024 |
| PS Smile Ltd | Health & social care | 2020 |
| PSA CB Limited | Hospitality | 2024 |
| PSJ Support Ltd | Administrative & support | 2013 |
| PSK Management Ltd | Real estate | 2019 |
| PSK Property Limited | Real estate | 2016 |
| PSK Real Estate Limited | Real estate | 2024 |
| PSK Retail Limited | Wholesale & retail | 2017 |
| Psquare Worldwide Ltd | Transport & logistics | 2025 |