| Periodic Traders Limited | Wholesale & retail | 2025 |
| Periodic Videos Ltd | Information & communication | 2011 |
| Periodical Property Partners Ltd | Construction | 2026 |
| Perkins First Financial Solutions Limited | Professional & scientific | 2021 |
| Perkins Home Improvements Ltd | Construction | 2025 |
| Perkipsie Ltd | Real estate | 2020 |
| Perks Property Ltd | Real estate | 2021 |
| Perla Beauty Aesthetics Ltd | Other services | 2025 |
| Perloke Ltd | Manufacturing | 2023 |
| Permabond Laminates Limited | Manufacturing | 1973 |
| Permalink Ltd | Financial services | 2026 |
| Permean Ltd | Professional & scientific | 2025 |
| Peronline Ltd | Hospitality | 2022 |
| Perpetual Property Investments Limited | Real estate | 2025 |
| Perrin Properties Nottm Ltd | Real estate | 2022 |
| Perro Rojo Ltd | Real estate | 2025 |
| Perry Road Properties Limited | Real estate | 1999 |
| Perry Software Consulting Ltd | Information & communication | 2022 |
| Perrymead Estates Limited | Real estate | 2015 |
| Perrymead Estates SPV1 Limited | Construction | 2023 |
| Persephone Aesthetics Limited | Health & social care | 2018 |
| Persian Empire AM Ltd | Hospitality | 2022 |
| Persian Empire Ltd | Hospitality | 2018 |
| Persian Holdings Ltd | Financial services | 2024 |
| Persian M&M Ltd | Hospitality | 2023 |
| Persomic Ltd | Professional & scientific | 2020 |
| Personal Therapy Solutions Ltd | Other services | 2014 |
| PERSONALISE4U Ltd | Wholesale & retail | 2015 |
| Personalised FUN Money Ltd | Manufacturing | 2024 |
| Personnel Solutions (Midlands) Limited | Administrative & support | 2017 |
| Perspective IP Limited | Professional & scientific | 2012 |
| Perugia Properties Limited | Real estate | 2018 |
| Peruse IT Ltd | Information & communication | 2022 |
| Pest Express Limited | Administrative & support | 1995 |
| Pet a Pony C.I.C. | Health & social care | 2023 |
| Pet Attix Limited | Wholesale & retail | 2025 |
| Pet Group Limited | Wholesale & retail | 2025 |
| Petal & Pastry Academy CIC | Hospitality | 2025 |
| Pete Burton Building Contractors Limited | Administrative & support | 2002 |
| Pete's Pantry (Clipstone) Ltd | Hospitality | 2019 |
| Peter a Boyes Geology Limited | Administrative & support | 2010 |
| Peter Bates Building & Plumbing Limited | Construction | 2014 |
| Peter Boott Ltd | Construction | 2021 |
| Peter Breame Limited | Construction | 1997 |
| Peter Graham Consulting Limited | Construction | 2011 |
| Peter Gribby Limited | Wholesale & retail | 1985 |
| Peter Hatter Photography Limited | Professional & scientific | 2009 |
| Peter Howe Windors Limited | Wholesale & retail | 2005 |
| Peter Jakes Ltd | Real estate | 2019 |
| Peter Keogh Consulting Limited | Professional & scientific | 2015 |
| Peter Leadbeater Designs Ltd | Professional & scientific | 2023 |
| Peter Libor Associates Limited | Information & communication | 1998 |
| Peter Moore Associates Limited | Manufacturing | 2006 |
| Peter Morley Limited | Construction | 2014 |
| Peter Philip (One) Ltd | Real estate | 2020 |
| Peter Philip Developments Ltd | Construction | 2019 |
| Peter Rogan & Associates Limited | Professional & scientific | 2015 |
| Peter Shaw Roofing Limited | Construction | 2010 |
| Peter Shirley (Financial Services) Limited | Financial services | 1987 |
| Peter Smith Holding Company Ltd | Financial services | 2021 |
| Peter Stansbury Interim Management Ltd | Extraterritorial | 2008 |
| Peter Trembling Consultancy Limited | Professional & scientific | 2018 |
| Peter.M Limited | Wholesale & retail | 2016 |
| Peterpan Racing Limited | Arts & recreation | 2023 |
| Peterphil Limited | Information & communication | 2015 |
| Peters Convenience Store Limited | Wholesale & retail | 2009 |
| Peters Rock Ltd | Hospitality | 2025 |
| Petit Popo Ltd | Professional & scientific | 2019 |
| Petpoochie Ltd | Wholesale & retail | 2022 |
| Petpoopick Ltd | Other services | 2025 |
| Petr G Services Ltd | Health & social care | 2023 |
| Petranos Ltd | Arts & recreation | 2019 |
| Petreus Trans Ltd | Transport & logistics | 2018 |
| Petrie Property Limited | Financial services | 2017 |
| Petrogate Limited | Wholesale & retail | 1990 |
| Petrogate Properties Limited | Professional & scientific | 1974 |
| Petrolania Limited | Wholesale & retail | 2018 |
| PETROV77 Ltd | Transport & logistics | 2025 |
| Petrus Néel Consulting Ltd | Professional & scientific | 2025 |
| Pets and Friends Trading Limited | Wholesale & retail | 2024 |
| Pets Birds Ltd | Wholesale & retail | 2022 |
| Pettifor Beverages Limited | Extraterritorial | 2024 |
| Pettifor Group Limited | Wholesale & retail | 2018 |
| Pettifor Household Limited | Extraterritorial | 2024 |
| PEV Trans Ltd | Transport & logistics | 2017 |
| Pevensey Golf Limited | Arts & recreation | 2002 |
| Pezaro Trading Limited | Wholesale & retail | 2023 |
| PF Care Services Limited | Health & social care | 2019 |
| PF Comparison Ltd | Professional & scientific | 2025 |
| PF House Ltd | Professional & scientific | 2023 |
| PF Nominees Limited | Administrative & support | 2023 |
| PF2F Services Limited | Other services | 2026 |
| PFB Design Limited | Professional & scientific | 2018 |
| Pfbgranulatorservices Ltd | Manufacturing | 2024 |
| PFS Fire & Security Limited | Construction | 2009 |
| PG Acerta Holdings Limited | Financial services | 2025 |
| PG ACT Holdings Limited | Financial services | 2025 |
| PG Agassi Acquisition Limited | Financial services | 2025 |
| PG Agassi Holdings Limited | Financial services | 2025 |
| PG Albertis Holdings Limited | Financial services | 2025 |