| Payroll Compliance Authority Ltd | Public administration | 2022 |
| Payroll Services Global Limited | Financial services | 2010 |
| PB Sewter Ltd | Transport & logistics | 2024 |
| PBS Commercial Ltd | Real estate | 2019 |
| PC Help Desk Limited | Information & communication | 2008 |
| PCE Designs Limited | Professional & scientific | 2017 |
| PCL Technical Ltd | Manufacturing | 2018 |
| PDA (Hull) Ltd | Hospitality | 2019 |
| PDC Properties Ltd | Real estate | 2019 |
| Pdca GAS Services Limited | Construction | 2019 |
| PDH Advisory Limited | Professional & scientific | 2015 |
| PDM Fabrications Limited | Manufacturing | 2003 |
| PDP Property Holdings Limited | Financial services | 2019 |
| PDP Property Services Ltd. | Construction | 2007 |
| Peach Property Development Limited | Real estate | 2021 |
| Peacock Stevens & Co Limited | Administrative & support | 2011 |
| Peacock Stevens Residential Limited | Real estate | 2022 |
| Peak District PUB Tours Limited | Arts & recreation | 2023 |
| Peak Heights Solutions Ltd | Construction | 2023 |
| Peak Network Solutions Limited | Information & communication | 2023 |
| Pear Tree Acquisitions Limited | Wholesale & retail | 2019 |
| Pearce Electrical Services (NW) Ltd | Construction | 2023 |
| Pearl of Anatolia Limited | Hospitality | 2026 |
| Pearlbrook Associates Ltd | Professional & scientific | 2019 |
| PEARO74 Ltd | Administrative & support | 2025 |
| Pearson Financial Planning Limited | Financial services | 2023 |
| Pearson UK Limited | Other services | 2003 |
| Pecunia Financial Planning Limited | Professional & scientific | 2024 |
| Peems Group Ltd | Transport & logistics | 2018 |
| Peet Group Ltd | Construction | 2025 |
| PEG Patiala Limited | Hospitality | 2015 |
| Pegasus Concepts Limited | Manufacturing | 2009 |
| Peggy & Gisela Ltd | Arts & recreation | 2016 |
| Peggy Bidco Limited | Financial services | 2018 |
| Peggy Holdco Limited | Financial services | 2018 |
| Peggy Midco Limited | Financial services | 2018 |
| Peggy Parentco Limited | Financial services | 2018 |
| Peluno Ltd | Transport & logistics | 2026 |
| Pendle View Healthcare Limited | Health & social care | 2024 |
| Pendlebury Metals Limited | Water & waste | 2019 |
| Pennine Office Furniture Ltd | Wholesale & retail | 2025 |
| Pennington Park Ltd | Administrative & support | 2015 |
| Penrith Tile Products Limited | Construction | 2025 |
| Pentagon Installations Limited | Construction | 2003 |
| Pentagon Skills Limited | Education | 2016 |
| Penzance Holdings Limited | Professional & scientific | 2005 |
| Penzance Leisure Limited | Public administration | 2002 |
| People Horizons Limited | Administrative & support | 2019 |
| Perburn Property Group Limited | Real estate | 2025 |
| Percy Property Ltd | Real estate | 2022 |
| Peregrination Travel Ltd | Administrative & support | 2016 |
| Perfect Pinkies Nails & Beauty Ltd | Other services | 2020 |
| Perfect Recruitment Ltd | Administrative & support | 2007 |
| Performance Brake Solutions Limited | Wholesale & retail | 2015 |
| Perimeter Partners International Limited | Professional & scientific | 2010 |
| Perry's Vinyl Cafe Ltd | Wholesale & retail | 2026 |
| Persolvo Limited | Information & communication | 2007 |
| Personal Accounting Ltd | Professional & scientific | 2018 |
| Personal Functional Assessment Services Limited | Health & social care | 2002 |
| Perspective (Avon) Limited | Extraterritorial | 2012 |
| Perspective (Central & East) Limited | Financial services | 1997 |
| Perspective (East Anglia) Limited | Financial services | 1980 |
| Perspective (HNH) Limited | Financial services | 2007 |
| Perspective (Home Counties) Limited | Financial services | 2010 |
| Perspective (Midlands & Cheshire) Limited | Financial services | 2012 |
| Perspective (North East) Limited | Financial services | 2001 |
| Perspective (North West) Limited | Financial services | 2003 |
| Perspective (North) Limited | Financial services | 2000 |
| Perspective (Oxon) Limited | Financial services | 2003 |
| Perspective (Prosser Knowles) Limited | Financial services | 2002 |
| Perspective (South East) Limited | Financial services | 1995 |
| Perspective (South West) Limited | Financial services | 2010 |
| Perspective (Springfield) Limited | Financial services | 1979 |
| Perspective (Thornton Springer) Limited | Financial services | 1994 |
| Perspective (Wealth Experts) Limited | Financial services | 2006 |
| Perspective (West) Limited | Financial services | 2005 |
| Perspective Financial Group Limited | Financial services | 2007 |
| Perspective Torus Wealth Management Limited | Financial services | 2026 |
| Pest Bird Services Limited | Water & waste | 2015 |
| Pest TEC Environmental Ltd | Administrative & support | 2016 |
| PEST'S-2-GO Limited | Professional & scientific | 2016 |
| Pestguard Northwest Chester Ltd | Agriculture & fishing | 2023 |
| Peter C Todd Joinery Limited | Construction | 2015 |
| Peter E Gilkes & Company LLP | | 2025 |
| Peter Stewart Electrical Ltd | Construction | 2011 |
| Peter's Pantry Limited | Hospitality | 2025 |
| Petre Holdings Ltd | Real estate | 2022 |
| Pets at Pubs Ltd | Wholesale & retail | 2026 |
| Pets on the Move Ltd | Transport & logistics | 2006 |
| Pettine Group Ltd | Wholesale & retail | 2024 |
| PFM Group Limited | Administrative & support | 2004 |
| PFN Holdings Ltd | Financial services | 2025 |
| PFN Investments Ltd | Financial services | 2025 |
| PH Orthopaedics Limited | Health & social care | 2017 |
| PH Projects Ltd | Construction | 2020 |
| Pharmed QSS Services Limited | Professional & scientific | 2013 |
| Phase One Sport and Leisure Community Interest Company | Arts & recreation | 2015 |
| Phase Supplements Limited | Wholesale & retail | 2025 |
| PHC Logistics Ltd | Transport & logistics | 2023 |
| Phenixium Ventures Ltd | Professional & scientific | 2025 |