| Premium Vision Solutions Limited | Health & social care | 2026 |
| Premium Worldwide Distribution LLP | | 2018 |
| Prend Ltd | Professional & scientific | 2024 |
| Prescot Electrical Discount Limited | Wholesale & retail | 2003 |
| Prestbury Holdings Ltd | Construction | 2017 |
| Prestbury's Farm Shop Ltd | Wholesale & retail | 2010 |
| Prestfield Court Management Company Limited | Real estate | 2016 |
| Prestige Escapes Limited | Hospitality | 2024 |
| Prestige Gardens Cheshire Limited | Administrative & support | 2022 |
| Prestige Place Recruitment Ltd | Administrative & support | 2025 |
| Prestige Utilities Limited | Construction | 2017 |
| Prestigious Properties Limited | Real estate | 2014 |
| Preston Bennett Holdings Limited | Extraterritorial | 1994 |
| Preston Bennett Limited | Professional & scientific | 2001 |
| Preston Brook Investments Ltd | Real estate | 2024 |
| Preston Plastics (Holdings) Limited | Financial services | 2021 |
| Preston Plastics Limited | Water & waste | 1997 |
| Pretty Decent Limited | Real estate | 2019 |
| Pretty PIE Ltd. | Wholesale & retail | 2013 |
| Pretty White Dress Limited | Wholesale & retail | 2018 |
| Prianems Limited | Administrative & support | 2014 |
| Prianems Property Ltd | Construction | 2026 |
| Pricingsoft Limited | Information & communication | 2010 |
| Pridecrest Limited | Administrative & support | 2002 |
| Priestholm Midco II Ltd | Financial services | 2019 |
| Priestholm Midco Ltd | Financial services | 2019 |
| Prima Company Services Limited | Administrative & support | 1998 |
| Prima Regulated Markets Limited | Information & communication | 2014 |
| Primary Care Properties (Manchester) Limited | Real estate | 2004 |
| Primary Law Holdings Ltd | Financial services | 2017 |
| Primavera Aromatherapy Limited | Manufacturing | 1986 |
| Primavision Contracting Ltd | Professional & scientific | 2018 |
| Prime Global Ventures Ltd | Financial services | 2023 |
| Prime Goods Ltd | Wholesale & retail | 2022 |
| Prime GP Locums Limited | Health & social care | 2025 |
| Prime Hereford Hub Limited | Construction | 2018 |
| Prime Support Service Limited | Health & social care | 2013 |
| Prime TSL Limited | Other services | 2024 |
| Primeautoz Ltd | Wholesale & retail | 2023 |
| Primecurios Consulting Ltd | Information & communication | 2014 |
| Primeoak Investments Limited | Real estate | 2009 |
| Primetech Systems Ltd | Information & communication | 2024 |
| Primezone Properties Ltd | Real estate | 2024 |
| Primora Properties Ltd | Real estate | 2025 |
| Primrose Brands Limited | Wholesale & retail | 2019 |
| Primrose Capital (UK) Limited | Administrative & support | 2008 |
| Primrose Cottage Nursery Limited | Wholesale & retail | 2020 |
| Primrose Management Solutions Limited | Professional & scientific | 2023 |
| Primrose Point Limited | Professional & scientific | 2023 |
| Primrose Walk Management Company Limited | Real estate | 2022 |
| Primula Blackstream Limited | Professional & scientific | 2019 |
| Principal Engineering Limited | Professional & scientific | 2022 |
| Print Shop Alty Ltd | Manufacturing | 2020 |
| Print Shop MCR Ltd | Manufacturing | 2018 |
| Printcater Limited | Hospitality | 1993 |
| Priority Air Express UK Limited | Transport & logistics | 2011 |
| Priorspur Limited | Real estate | 1981 |
| Priory Properties Birmingham Limited | Real estate | 2001 |
| Prism Engineering Ltd | Construction | 2013 |
| Privacy IQ Ltd | Information & communication | 2025 |
| Private Listings Ltd | Real estate | 2026 |
| Private Plate Auctions Limited | Wholesale & retail | 2026 |
| PRM Training Limited | Information & communication | 2014 |
| Pro Business Advisors Limited | Information & communication | 2016 |
| Pro SKS Limited | Hospitality | 2022 |
| Pro-Cognitio Ltd | Professional & scientific | 2025 |
| Pro-Scape Limited | Administrative & support | 1999 |
| Pro.Hub Limited | Professional & scientific | 2021 |
| Proactive Estate Planning Ltd | Administrative & support | 2023 |
| Process Automation Information Analytica Limited | Information & communication | 2014 |
| Process Control Design Limited | Professional & scientific | 2023 |
| Process Goals Limited | Professional & scientific | 2022 |
| Process Integration Limited | Information & communication | 2004 |
| Prochem Fluid Handling Limited | Extraterritorial | 1998 |
| Prochem Services (Holdings) Limited | Real estate | 2008 |
| Prochem Services Limited | Manufacturing | 1984 |
| Prochem Valves Limited | Extraterritorial | 1998 |
| Procore UK Ltd | Information & communication | 2018 |
| Procura House Ltd | Administrative & support | 2015 |
| Procure Link Solutions Limited | Professional & scientific | 2024 |
| Procurement Hub Limited | Professional & scientific | 2022 |
| Prodigm Limited | Information & communication | 2026 |
| Productise Limited | Administrative & support | 2015 |
| Profamily Wellfare | Health & social care | 2018 |
| Professional Consultants Certificate Ltd | Professional & scientific | 2011 |
| Professional Laboratory Services Limited | Administrative & support | 1995 |
| Progressis Consulting Limited | Information & communication | 2004 |
| Project 10 Indo Limited | Wholesale & retail | 2025 |
| Project 3 Architects Ltd | Professional & scientific | 2012 |
| Project Amplify Limited | Information & communication | 2011 |
| Project Central 365 Limited | Professional & scientific | 2023 |
| Project Chinook Limited | Manufacturing | 2026 |
| Project Management & Analysis Services Limited | Administrative & support | 2011 |
| Project Oak Bidco Limited | Financial services | 2022 |
| Project Oak Midco Limited | Financial services | 2022 |
| Project Oak Topco Limited | Financial services | 2022 |
| Project Reporting Limited | Administrative & support | 2023 |
| Project Rita Bidco Limited | Arts & recreation | 2024 |
| Project Rita Midco Limited | Financial services | 2024 |
| Project Rita Topco Limited | Professional & scientific | 2024 |