| Peak Biomedical Ltd | Professional & scientific | 2002 |
| Peak Electromagnetics Limited | Professional & scientific | 2004 |
| Peak View Consulting Limited | Professional & scientific | 2004 |
| Peazi Ltd | Information & communication | 2019 |
| Pegasys Limited | Professional & scientific | 2016 |
| Pelotome Ltd | Information & communication | 2007 |
| Penguin Direct Limited | Extraterritorial | 2008 |
| Penistone Limited | | 1994 |
| Penketh Fencing & Sheds Ltd | Manufacturing | 2007 |
| Pennypen Transport Limited | Transport & logistics | 2017 |
| Performance Dynamics Limited | Professional & scientific | 2003 |
| Persia Management Limited | Real estate | 2003 |
| Personal Excellence in Life Ltd | Other services | 2006 |
| Personal Trainer Collective Limited | Arts & recreation | 2013 |
| Peter Jones Livestock Limited | Wholesale & retail | 2004 |
| Peter Lowe Construction Ltd | Construction | 1995 |
| Peter Michael Limited | Other services | 2002 |
| Peters Bakery (Fallowfield) Ltd | Wholesale & retail | 2022 |
| Petersgate Property Developments LLP | | 2004 |
| Petreas Limited | Health & social care | 2004 |
| Petty Pool Packaging Limited | Administrative & support | 2002 |
| Pewterspear Green Trust Limited | Households | 1989 |
| PG Warburton Enterprises Ltd | Real estate | 2026 |
| Pharos Field Engineering Services Limited | Construction | 2003 |
| Pharos Generator Services Limited | Administrative & support | 2012 |
| Phil Davies Quality Butcher Limited | Wholesale & retail | 2005 |
| Phil Newton Joiner & Builder Limited | Construction | 2005 |
| Philangles Limited | Wholesale & retail | 2008 |
| Philip Feeney Limited | Financial services | 2012 |
| Phoenix Jewellers Ltd | Wholesale & retail | 2007 |
| Phoenix-Adelphi Limited | Professional & scientific | 1989 |
| Physiofit Limited | Health & social care | 2006 |
| Picow Engineering Group Ltd. | Professional & scientific | 2005 |
| Pieshop Illustrations Limited | Arts & recreation | 2003 |
| Pinnacle Products Limited | Administrative & support | 1994 |
| Pinnock Brothers (Thatcham & Kintbury) Limited | Wholesale & retail | 1951 |
| Pinxton Properties Limited | Construction | 1999 |
| Piping Design Services Limited | Professional & scientific | 2006 |
| Pippy Consulting Ltd | Professional & scientific | 2024 |
| PJL Resources Limited | Administrative & support | 2007 |
| Planet Express Limited | Transport & logistics | 1999 |
| Planex Investments Limited | Real estate | 2004 |
| Planning and Landscape Specialists Ltd. | Professional & scientific | 2006 |
| Plascon Limited | Manufacturing | 1995 |
| Plasticotta (U K) Limited | Manufacturing | 1972 |
| Platinum Automated Entries Limited | Construction | 2002 |
| Platinum Financial Holdings Limited | Financial services | 2001 |
| Platinum Financial Services Limited | Financial services | 1999 |
| Platinum Financial Services UK Ltd | Financial services | 2007 |
| Platinum IFS Limited | Financial services | 2004 |
| Platinum the Estate Agents Limited | Real estate | 2003 |
| Plumbley Environmental Contractors Limited | Construction | 2005 |
| Pluslogic Limited | Professional & scientific | 1999 |
| POD Childcare Ltd | Health & social care | 2021 |
| Poetry Live Limited | Education | 2002 |
| Pointer Property Services Ltd | Hospitality | 1998 |
| Polemarch Industrial Limited | Real estate | 1989 |
| Polestar Consultancy Limited | Professional & scientific | 2007 |
| Polyline Holdings Ltd | Financial services | 2025 |
| Pomona Partners Ltd | Information & communication | 2024 |
| Poplar Project Management Ltd | Professional & scientific | 2023 |
| Power Management (UK) Limited | Professional & scientific | 1981 |
| Powerdisk Limited | Professional & scientific | 1987 |
| Powered by Agents Ltd | Other services | 2017 |
| Pownall Place Residents Association Limited | Households | 2007 |
| Poynton Plant Hire Limited | Construction | 2001 |
| PP Music Limited | Information & communication | 2007 |
| PR Systems UK Limited | Information & communication | 2000 |
| Praktis Solutions Limited | Real estate | 2002 |
| Precinct Associates Limited | Construction | 2005 |
| Precog Ltd | Professional & scientific | 2018 |
| Preficia Concepts Ltd | Information & communication | 2025 |
| Premier (North West) Limited | Construction | 2008 |
| Premier Dairy Services Limited | Professional & scientific | 2006 |
| Premier Express Ltd | Wholesale & retail | 2018 |
| Presbar Operating Limited | Professional & scientific | 1999 |
| Pressview Limited | Real estate | 1998 |
| Priesty Court Management Company Limited | Households | 1987 |
| Primal Systems Limited | Professional & scientific | 2004 |
| Primeon Services Ltd | Administrative & support | 2026 |
| Primeus Ltd | Transport & logistics | 2018 |
| Princess Engineering Company Limited | Real estate | 1969 |
| Print Express Limited | Extraterritorial | 2006 |
| Print Trade LLP | | 2006 |
| Printing Group (UK) Limited | Manufacturing | 1994 |
| Priory Design Services Limited | Administrative & support | 2007 |
| Prism Print Solutions Ltd | Professional & scientific | 2003 |
| Pro-Tech Architecture Ltd | Professional & scientific | 2007 |
| Pro-Vac Services Limited | Manufacturing | 2002 |
| Proactive Workforce Solutions Ltd | Administrative & support | 2020 |
| Process Knowledge Limited | Extraterritorial | 1997 |
| Professional Decor Ltd | Construction | 2004 |
| Professions Finance Limited | Extraterritorial | 2025 |
| Profit Masters Limited | Financial services | 1998 |
| Project Baslow Limited | | 2000 |
| Project Ires Bidco Limited | Professional & scientific | 2014 |
| Project Ires Topco Limited | Professional & scientific | 2014 |
| Project Management Techniques Ltd | Professional & scientific | 1999 |
| Proman Technology Services Limited | Information & communication | 1989 |
| Property Developments (Crewe) Limited | Real estate | 1981 |