| Prajapati Assets Ltd | Real estate | 2022 |
| Pramukhs Enterprises Limited | Wholesale & retail | 2026 |
| Prasinaki Ltd | Wholesale & retail | 2026 |
| Precision Encoders Limited | Professional & scientific | 1991 |
| Precision Engineering Services (Sussex) Limited | Administrative & support | 2018 |
| Preferred Accountancy & Management Ltd | Professional & scientific | 2022 |
| Preferred Cooling Limited | Construction | 2025 |
| Preferred Electrical Services Ltd | Construction | 2025 |
| Preferred Marketing Ltd | Professional & scientific | 2013 |
| Prem Consultancy Ltd | Information & communication | 2023 |
| Prem Foods Ltd | Wholesale & retail | 2022 |
| Premier Bathroom Products Limited | Construction | 2008 |
| Premier Cuisine London Limited | Hospitality | 2021 |
| Premier Edge Cleaners Ltd | Administrative & support | 2025 |
| Premier Roofs UK Ltd | Construction | 2020 |
| Premier Sports Agency Limited | Arts & recreation | 2019 |
| Premier Willow Ltd | Manufacturing | 2024 |
| Premium Gatwick Cars Ltd | Transport & logistics | 2025 |
| Premium Mart Ltd | Wholesale & retail | 2024 |
| Prenheath Limited | Households | 1971 |
| Prestige Cleaning Limited | Administrative & support | 2003 |
| Prestige Globe Services Ltd | Wholesale & retail | 2023 |
| Prestige Group Services Ltd | Construction | 2018 |
| Prestige Heating Services Limited | Construction | 2019 |
| Prestige Motoring Ltd | Wholesale & retail | 2020 |
| Prestige Vehicle Hire Ltd | Wholesale & retail | 2021 |
| Preston Park Dental Care Ltd | Health & social care | 2007 |
| Preventafire Ltd | Administrative & support | 2009 |
| PRICELESSFINDS4U Limited | Wholesale & retail | 2024 |
| Prime 8 Ltd | Information & communication | 2011 |
| Prime Airport Transfers Ltd | Transport & logistics | 2025 |
| Prime Assortment Limited | Wholesale & retail | 2025 |
| Prime Cars Crawley Ltd | Transport & logistics | 2023 |
| Prime Global Impex Limited | Wholesale & retail | 2025 |
| Prime Health Diagnostics Ltd | Health & social care | 2010 |
| Prime Leeds Assets Ltd | Real estate | 2026 |
| Prime Projects International Limited | Professional & scientific | 1999 |
| Prime Response Ltd | Administrative & support | 2022 |
| Prime Vehicle Services Ltd | Wholesale & retail | 2023 |
| Primekey Estates Ltd | Real estate | 2026 |
| Primel Healthcare Services Ltd | Health & social care | 2025 |
| Primeride Transport Services Ltd | Transport & logistics | 2025 |
| Primevista Commercial Cleaning Ltd | Administrative & support | 2025 |
| Primeware Ltd | Wholesale & retail | 2022 |
| Prinstan Limited | Wholesale & retail | 2017 |
| Print 2000 Services Ltd | Manufacturing | 2007 |
| Prioridad Limited | Professional & scientific | 2014 |
| Prisco Media Services Ltd | Information & communication | 2014 |
| Pristine House Cleaning Ltd | Administrative & support | 2023 |
| Pristine Maintenance and Servicing Ltd | Administrative & support | 2025 |
| Prithvi & Rudra Investments Limited | Real estate | 2019 |
| Private EYE Service Limited | Information & communication | 2006 |
| Private Hire Consultancy Ltd | Professional & scientific | 2021 |
| Prizehill Properties Limited | Real estate | 2000 |
| Pro Auto Wash Ltd | Administrative & support | 2024 |
| Pro Motion UK Limited | Information & communication | 1991 |
| Pro PAY Payments Limited | Professional & scientific | 2026 |
| Pro Plumbers and Pipefitters Limited | Construction | 2014 |
| Pro Ride Cars Limited | Transport & logistics | 2024 |
| Pro Star Motors Zone Limited | Wholesale & retail | 2026 |
| Pro Tech Gate Services Ltd | Administrative & support | 2022 |
| Pro-Aesthetic Dental Laboratory Ltd | Manufacturing | 2020 |
| Pro-Alarm Service & Installations Limited | Administrative & support | 2011 |
| Pro-Tax Accountancy Ltd | Professional & scientific | 2014 |
| Pro-Tax Accounting & Business Services Ltd | Professional & scientific | 2014 |
| Procapita Limited | Administrative & support | 2000 |
| Procurewise Limited | Professional & scientific | 2019 |
| Productiveminds Publishing and Learning Ltd | Information & communication | 2019 |
| Profi Parts Limited | Administrative & support | 2015 |
| Profile Flooring Ltd | Wholesale & retail | 2011 |
| Progressive Fire Protection Limited | Construction | 2023 |
| Project Fitwell Ltd | Other services | 2024 |
| Project G Ltd | Construction | 2017 |
| Project Management Retail Services Limited | Information & communication | 2002 |
| Prokill (UK) Ltd | Administrative & support | 2005 |
| Prokill Limited | Extraterritorial | 2002 |
| Prop Commercial Real Estates Limited | Real estate | 2024 |
| Propain Bicycles UK Ltd | Wholesale & retail | 2021 |
| Properties Shopping Centre Ltd | Real estate | 2025 |
| Property for Sale Limited | Real estate | 2005 |
| Property Group 33 Limited | Real estate | 2019 |
| Property in Partnership Limited | Real estate | 2023 |
| Propertybourse Limited | Financial services | 2003 |
| Prophase Football Ltd | Wholesale & retail | 2025 |
| Propify Enterprise Ltd | Hospitality | 2024 |
| Proporta Technologies Ltd | Wholesale & retail | 2023 |
| Prorayz Limited | Information & communication | 2020 |
| Prorec Limited | Administrative & support | 2017 |
| Prorehab Audiology Ltd | Health & social care | 2026 |
| Prorehab Physio Limited | Health & social care | 2012 |
| Proservis Ltd | Other services | 2016 |
| Prosperity Consultants Limited | Professional & scientific | 2014 |
| Prostarwindowcleaning Limited | Other services | 2015 |
| Protea Way Holdings Ltd | Financial services | 2025 |
| Protea Way Ltd | Real estate | 2025 |
| Protect Enhanced Security Ltd | Administrative & support | 2025 |
| Provincial and Country Estates Limited | Real estate | 2007 |
| Pruvs Limited | Administrative & support | 2016 |
| PSB Evolve Ltd | Administrative & support | 2019 |
| PSC Fashion Trading Ltd | Wholesale & retail | 2017 |