| Premoden Limited | Wholesale & retail | 2003 |
| Prescient Property Ltd | Real estate | 2024 |
| Prescriptive Rights 1832 Limited | Real estate | 2025 |
| Prestige Brickwork and Developments Limited | Construction | 2026 |
| Prestige Garage Doors Ltd | Manufacturing | 2012 |
| Prestige Lodging Limited | Hospitality | 2024 |
| Prestige Quality Repair Centre Limited | Wholesale & retail | 2007 |
| Prestigious Home Improvements Ltd | Construction | 2015 |
| Prestine Healthcare Ltd | Health & social care | 2022 |
| Prestonfield Alliance Ltd | Wholesale & retail | 2020 |
| Prestovia Ltd | Wholesale & retail | 2025 |
| Pretty Witch Cosmetics Ltd. | Wholesale & retail | 2018 |
| Prevail Advisory Services Limited | Public administration | 2019 |
| Prevail Asset Management Limited | Financial services | 2019 |
| Prevail Global Limited | Public administration | 2022 |
| Prevail Holdings Limited | Financial services | 2025 |
| Prevail Insight Limited | Professional & scientific | 2018 |
| Prevail Maritime Limited | Transport & logistics | 2018 |
| Prevail Partners Global Consulting Limited | Financial services | 2026 |
| Prevail Partners Ltd | Professional & scientific | 2018 |
| Prevail Skatehouse C.I.C. | Arts & recreation | 2012 |
| Prevail Special Projects Limited | Professional & scientific | 2019 |
| Prevail Technology Limited | Information & communication | 2022 |
| Prevent Pest Control Southern Limited | Administrative & support | 2011 |
| Prevent Roofing and Building Ltd | Construction | 2024 |
| Previa Edge Ltd | Wholesale & retail | 2025 |
| Previsio Ltd | Information & communication | 2024 |
| Prevolut Ltd | Information & communication | 2026 |
| PRF Composite Holdings Limited | Financial services | 2017 |
| Priddy Hard Developments Ltd | Construction | 2015 |
| Priestfield Limited | Real estate | 2017 |
| Primal Paws Ltd | Wholesale & retail | 2023 |
| Primary Tree Care Ltd | Agriculture & fishing | 2019 |
| Primavision Group Ltd | Extraterritorial | 2026 |
| Prime Business BR Limited | Wholesale & retail | 2025 |
| Prime Caravan Care Ltd | Manufacturing | 2017 |
| Prime Code Ltd | Wholesale & retail | 2026 |
| Prime Global Trade Experts Ltd | Wholesale & retail | 2024 |
| Prime Heat Ltd | Construction | 2012 |
| Prime Language Courses Ltd | Education | 2011 |
| Primecent Traders Ltd | Wholesale & retail | 2021 |
| PRIMECOMPETITIONS365 Ltd | Arts & recreation | 2023 |
| Primekitchen Appliances Ltd | Wholesale & retail | 2025 |
| Primenex BR Ltd | Wholesale & retail | 2025 |
| Primepit Ltd | Wholesale & retail | 2024 |
| Primetime Slots Limited | Arts & recreation | 2025 |
| Primetime Vending Limited | Hospitality | 2025 |
| Primetower Care Homes Poole Limited | Health & social care | 2013 |
| Primetower Developments Limited | Real estate | 1996 |
| Primetower Estates Limited | Construction | 2005 |
| Primetower Homes Christchurch Limited | Real estate | 1996 |
| Primetower Homes Ltd | Real estate | 2000 |
| Primetower Leisure Limited | Hospitality | 1999 |
| Primetower Properties Limited | Construction | 1994 |
| Primisource Ltd | Education | 2024 |
| Primitive Gymnasium Limited | Arts & recreation | 2011 |
| Primur Ltd | Administrative & support | 2018 |
| Primus Lifestyle Management Ltd | Other services | 2015 |
| Prince's Reach (Preston) Management Company Limited | Households | 1989 |
| Princes Court (Sea Road) Freehold Limited | Households | 2024 |
| Princes Court RTM Company Limited | Real estate | 2015 |
| Principal Designer Service Limited | Professional & scientific | 2025 |
| Principles Management Ltd | Extraterritorial | 2016 |
| Print & Post Services Ltd | Manufacturing | 2020 |
| Printing Art Ltd | Professional & scientific | 2019 |
| Prints With Personality Ltd | Arts & recreation | 2009 |
| Priority 2014 Ltd | Transport & logistics | 2024 |
| Priority Build Limited | Construction | 2016 |
| Priory Performance Limited | Professional & scientific | 2019 |
| Prism Electric Vehicle Architecture Ltd | Manufacturing | 2025 |
| Prismo Labs Ltd | Information & communication | 2026 |
| Pristine Clean Exteriors Ltd | Administrative & support | 2023 |
| Pristine Spray Finishes Ltd | Wholesale & retail | 2013 |
| Privacare Ltd | Health & social care | 2025 |
| Private Rented Sector Professionals Limited | Other services | 2017 |
| Privatepropertyuk Ltd | Real estate | 2025 |
| Prizepotpigs Ltd | Other services | 2024 |
| Pro Accounting & Tax Limited | Professional & scientific | 2010 |
| Pro Dorset Resin Ltd | Construction | 2019 |
| Pro Garage Poole Ltd | Wholesale & retail | 2025 |
| Pro Goal Investment Limited | Real estate | 2019 |
| Pro Learning Digital Limited | Information & communication | 2023 |
| Pro Webdesigns Stark Group Ltd | Wholesale & retail | 2024 |
| Pro-Aqua Services South Limited | Wholesale & retail | 2024 |
| Pro-Fit Car Ports Ltd | Construction | 2025 |
| Pro-Fit Commercial Limited | Construction | 2024 |
| Pro-Fit Dorset Ltd | Professional & scientific | 2026 |
| Pro-Fit Green Energy Ltd | Professional & scientific | 2022 |
| Pro-Fit Holdings Limited | Financial services | 2024 |
| Pro-Fit Property Improvements Limited | Construction | 2025 |
| Pro-Fit Renewable Energy UK Limited | Construction | 2025 |
| Pro-Fit Solar Limited | Construction | 2025 |
| Pro-Fit Solar Solutions Limited | Construction | 2023 |
| Pro-Fit Windows & Doors Installations Limited | Construction | 2019 |
| Pro-Fit Windows & Doors LLP | | 2012 |
| Pro-Fit Windows Solutions UK Limited | Construction | 2025 |
| PRO100WORK Ltd | Construction | 2025 |
| Proaccounters Ltd | Professional & scientific | 2022 |
| Proboss Ltd | Wholesale & retail | 2005 |
| Procad Consultants Limited | Information & communication | 1997 |