| Prime UK Fleet Limited | Transport & logistics | 2026 |
| Prime UK LED Ltd | Wholesale & retail | 2022 |
| Primedry Ltd | Construction | 2025 |
| Primefar Limited | Other services | 2001 |
| Primeflow Systems Ltd | Construction | 2025 |
| Primegate Holdings Limited | Real estate | 2025 |
| Primegate Realty Ltd | Real estate | 2023 |
| Primeghar Ltd | Real estate | 2023 |
| Primeglobe Development Limited | Construction | 2025 |
| Primeglobe Limited | Real estate | 1998 |
| Primelink Limited | Wholesale & retail | 2000 |
| Primenest Letting Ltd | Real estate | 2023 |
| Primepage Limited | Other services | 2015 |
| Primepath Advisory Ltd | Professional & scientific | 2026 |
| Primepayment Ltd | Information & communication | 2024 |
| Primerise Limited | Real estate | 2016 |
| Primeshopex UK Limited | Wholesale & retail | 2025 |
| Primeview Developments Ltd | Real estate | 2000 |
| Primeville Limited | Financial services | 2022 |
| Primeway Tours Ltd | Administrative & support | 2026 |
| Primezsquare Limited | Information & communication | 2015 |
| Primo Take Away Limited | Hospitality | 2019 |
| Primon Limited | Real estate | 2023 |
| Primrose Care Limited | Administrative & support | 2019 |
| Primrose Estates Limited | Hospitality | 1997 |
| Primrose Film Productions Limited | Arts & recreation | 1955 |
| Primrose Foods Ltd | Hospitality | 2024 |
| Primrose Logistics Ltd | Transport & logistics | 2022 |
| Principal Studios Ltd | Real estate | 2026 |
| Principltech Limited | Information & communication | 2024 |
| Prindii Logistics Ltd | Transport & logistics | 2021 |
| Print Different Limited | Manufacturing | 2026 |
| Print Parade Ltd | Wholesale & retail | 2024 |
| Printemps Limited | Households | 2020 |
| Printline Consultancy Ltd | Other services | 2024 |
| Printsmith Productions Ltd | Manufacturing | 2022 |
| Prior AI Ltd | Information & communication | 2025 |
| Prioria 38 Flat Management Company Limited | Households | 1997 |
| Priory London Investments Limited | Construction | 2017 |
| Priory Property Management Limited | Real estate | 2016 |
| Prisacariu Ltd | Construction | 2013 |
| Prish Properties Limited | Real estate | 2022 |
| Prisha Consultancy Limited | Information & communication | 2025 |
| Prisha Enterprise Limited | Transport & logistics | 2025 |
| Prisha Estates Ltd | Real estate | 2026 |
| Prisha Event and Catering Ltd | Hospitality | 2026 |
| Prisha’S Beauty Care Limited | Other services | 2025 |
| Priship Group Limited | Hospitality | 2024 |
| Prishm Limited | Real estate | 2025 |
| Prism Consultancy Ltd | Professional & scientific | 2021 |
| Prism Motion Pictures Limited | Information & communication | 2024 |
| Prism Resources Ltd | Administrative & support | 2017 |
| Prisma Logistics (UK) Limited | Transport & logistics | 2003 |
| Prismatic Analytics Limited | Information & communication | 2014 |
| Pristech Limited | Information & communication | 2018 |
| Pristerm Limited | Health & social care | 2012 |
| Pristine Car Sales Ltd | Wholesale & retail | 2025 |
| Pristine Pharma Ltd | Health & social care | 2013 |
| Pristine Platinum Healthcare Limited | Health & social care | 2024 |
| Pristine Pure Services Ltd | Administrative & support | 2025 |
| Pritech Ltd | Wholesale & retail | 2019 |
| Priti Consulting Limited | Other services | 2018 |
| Privacy Live Ltd. | Information & communication | 2022 |
| Private Brain Limited | Information & communication | 2012 |
| Private JET Crew Limited | Transport & logistics | 2023 |
| Prive UK Solutions Ltd | Professional & scientific | 2014 |
| Privin Corporation Ltd | Other services | 2025 |
| Privy Infotech Ltd | Information & communication | 2016 |
| Priya Leisure International Private Limited | Information & communication | 2019 |
| Priya Optical Ltd | Professional & scientific | 2017 |
| Priyal's Import & Export Ltd | Wholesale & retail | 2021 |
| Priyana Holdings Limited | Real estate | 2016 |
| Priyanka Rose Ltd | Administrative & support | 2025 |
| Priyanka Sarcar Limited | Arts & recreation | 2026 |
| Priyvia Ltd | Wholesale & retail | 2026 |
| Prizm Cafes Mayfair Ltd | Hospitality | 2024 |
| Prizm Cafes UK Ltd | Hospitality | 2023 |
| Prizm Developers UK Ltd | Construction | 2023 |
| Prizm Investments Limited | Administrative & support | 2006 |
| Pro 24/7 Plumbing & Heating Ltd | Construction | 2020 |
| Pro Cleaning Limited | Administrative & support | 2025 |
| Pro Consultancy Services Ltd | Professional & scientific | 2021 |
| Pro Consultancy Solutions UK Limited | Professional & scientific | 2026 |
| Pro Elite Ltd | Professional & scientific | 2016 |
| Pro Groundwork Ltd | Construction | 2024 |
| Pro Hygiea Ltd | Construction | 2020 |
| Pro Identity LLP | | 2022 |
| Pro Logi Solutions Limited | Professional & scientific | 2023 |
| Pro Plumbing Heating & Boilers Ltd | Construction | 2020 |
| Pro Rope Access Ltd | Construction | 2019 |
| Pro Sentry Close Protection Services Ltd | Administrative & support | 2025 |
| Pro Sentry Ltd | Administrative & support | 2015 |
| Pro Sentry Training Academy Ltd | Education | 2025 |
| Pro Solutions Contracting Ltd | Construction | 2025 |
| Pro Utility Construction Ltd | Construction | 2022 |
| Pro Vocal Artist Limited | Education | 2021 |
| Pro-Active Advisors Limited | Professional & scientific | 2023 |
| Pro-Health Insights Ltd | Professional & scientific | 2024 |
| PRO4LIFE Ltd | Wholesale & retail | 2018 |
| PRO4MULA Limited | Information & communication | 2019 |