| Principle Developments (NW) Ltd | Construction | 2017 |
| Principle Investments NW Ltd | Real estate | 2019 |
| Principle Properties NW Ltd | Real estate | 2021 |
| Principle Wealth and Financial Planning Ltd | Financial services | 2018 |
| Prinsess Carpet Centre Ltd | Wholesale & retail | 2021 |
| Print Media Ltd | Manufacturing | 2007 |
| Print Publishing Limited | Professional & scientific | 2017 |
| Print Services Limited | Manufacturing | 2005 |
| Print Supplies UK Ltd | Wholesale & retail | 2013 |
| Printers Property Investments Limited | Real estate | 2013 |
| Printers UK Ltd | Manufacturing | 2003 |
| Printfine Group Limited | Real estate | 2010 |
| Printfine Limited | Manufacturing | 1996 |
| Printix Formations Limited | Professional & scientific | 2026 |
| Prints Royale Ltd | Manufacturing | 2025 |
| Printsbyjellyfish Ltd | Manufacturing | 2025 |
| Printstat Limited | Administrative & support | 2003 |
| Priori Services Ltd | Construction | 2023 |
| Priority BIN Cleaning Ltd | Administrative & support | 2020 |
| Priority Management Limited | Health & social care | 1985 |
| Priority One Medical Services Ltd | Health & social care | 2016 |
| Priority One Security Northwest Ltd | Administrative & support | 2020 |
| Priority Property (Middle ROW) Ltd | Real estate | 2025 |
| Priority Youth Project | Education | 2014 |
| Priorly Ltd | Administrative & support | 2023 |
| Priormere Limited | Manufacturing | 1974 |
| Priory Access Ltd | Manufacturing | 2021 |
| Priory Court Owners Limited | Households | 2014 |
| Priory Management Company (Wavertree) Limited | Households | 1983 |
| Priory Road PO Limited | Wholesale & retail | 2023 |
| Prise Limited | Professional & scientific | 2011 |
| Prism Civils and Construction Limited | Construction | 2023 |
| Prism Electrical Services Ltd | Construction | 2020 |
| Prism Holdco (2025) Limited | Extraterritorial | 2024 |
| Prism Integrated Group Ltd | Financial services | 2023 |
| Prism Mechanical Services Ltd | Construction | 2023 |
| Prism Property Group Ltd | Real estate | 2021 |
| Prismm RX Ltd | Professional & scientific | 2011 |
| Prisoner Education Solutions Limited | Education | 2016 |
| Prissy Missy Ltd | Wholesale & retail | 2017 |
| Pristanor Caring Services Ltd | Health & social care | 2025 |
| Pristine Building Services Ltd | Construction | 2026 |
| Pristine Clean Commercial Cleaning Solutions Limited | Administrative & support | 2023 |
| Pristine Country Services Ltd | Construction | 2019 |
| Pristine Plastering Liverpool Ltd | Construction | 2023 |
| Pristine Renovations Limited | Real estate | 2025 |
| Pristine Window Cleaning (NW) Limited | Administrative & support | 2012 |
| Pritchards Bookshop Ltd | Wholesale & retail | 2025 |
| Priva Kids Limited | Wholesale & retail | 2024 |
| Private & Confidential Clothing Ltd | Wholesale & retail | 2023 |
| Private Delicacies Ltd | Hospitality | 2020 |
| Private Hire Direct Limited | Administrative & support | 2009 |
| Private Label Ltd | Administrative & support | 2016 |
| Private Midwives Limited | Health & social care | 2011 |
| PRIVATECOACHING4U Centre Ltd | Arts & recreation | 2025 |
| PRIVATECOACHING4U Ltd | Arts & recreation | 2022 |
| Privilege Cars and Commercials Limited | Wholesale & retail | 2020 |
| Privilege HR (Franchising) Ltd | Administrative & support | 2023 |
| Privilege HR (Liverpool) Ltd | Administrative & support | 2017 |
| Privilege HR Limited | Administrative & support | 2023 |
| Privilegehr Southampton Limited | Administrative & support | 2026 |
| Priya Limited | Administrative & support | 2005 |
| Prize-Hunter Competitions Ltd | Information & communication | 2025 |
| Prizepulse Ltd | Other services | 2025 |
| PRK Developments (NW) Ltd | Real estate | 2021 |
| PRK Holding (NW) Ltd | Real estate | 2022 |
| PRL (Dormant) Limited | Professional & scientific | 1985 |
| PRL Convenience Store Ltd | Wholesale & retail | 2020 |
| Prliverpool Ltd | Real estate | 2016 |
| PRM Rocket Ltd | Wholesale & retail | 2026 |
| Prmnz Private Limited | Health & social care | 2018 |
| Prmtservices Limited | Transport & logistics | 2007 |
| Prns Building Services Ltd | Construction | 2009 |
| Prntapp Limited | Financial services | 2021 |
| Pro Adept Services Limited | Households | 2025 |
| Pro Blinds Limited | Other services | 2014 |
| Pro BLO Limited | Wholesale & retail | 2014 |
| Pro Consult Ltd | Administrative & support | 2017 |
| Pro Expert Building Limited | Construction | 2025 |
| Pro Finish Painting & Decorating Ltd | Construction | 2022 |
| Pro Flow (NW) Ltd | Administrative & support | 2026 |
| Pro Flying Cameras Aerial Cinematography Ltd | Other services | 2004 |
| Pro Football Events Ltd | Education | 2019 |
| Pro FRP Ltd | Wholesale & retail | 2022 |
| Pro GAS Merseyside Limited | Construction | 2013 |
| Pro HV Ltd | Construction | 2025 |
| Pro Impact Security Ltd | Administrative & support | 2024 |
| Pro Install Solutions Ltd | Construction | 2025 |
| Pro Level Academy Ltd | Arts & recreation | 2020 |
| Pro Performance Mindset Limited | Professional & scientific | 2020 |
| Pro Prizes Ltd | Arts & recreation | 2024 |
| Pro Skill Sports Limited | Education | 2024 |
| Pro Time (PT) Limited | Wholesale & retail | 2012 |
| Pro Vapours Ltd | Wholesale & retail | 2010 |
| Pro-Activ Cleaning and Property Solutions Ltd | Administrative & support | 2025 |
| Pro-Am Lifestyle Protection Ltd | Financial services | 2017 |
| Pro-Cdm Limited | Construction | 2002 |
| Pro-Exec Supplements Ltd | Manufacturing | 2024 |
| Pro-Vibe Ltd | Education | 2021 |
| Proact Security Ltd | Administrative & support | 2022 |