| Paragon Decorators (Horsham) Limited | Construction | 2009 |
| Paragon Investments Limited | Real estate | 2009 |
| Paragon Scientific Limited | Manufacturing | 1994 |
| Paragraph Software Limited | Information & communication | 2025 |
| Paramount Brickwork Limited | Construction | 2005 |
| Paramount Commerce Services Limited | Financial services | 2005 |
| Parapluie Technologies Limited | Information & communication | 2024 |
| Pardalis Ltd | Hospitality | 2025 |
| Park Hotels Holding UK Limited | Financial services | 2021 |
| Park Place Services Limited | Administrative & support | 2015 |
| Park Regis Birmingham LLP | | 2011 |
| Parker & Bailey Events Ltd | Hospitality | 2020 |
| Parker Brickwork & Building Limited | Construction | 2019 |
| Parking Focus Limited | Administrative & support | 2026 |
| Parkside Property Holdings Ltd | Real estate | 2019 |
| Parrabellum Associates Ltd | Professional & scientific | 2024 |
| Parsons Metal Recycling Limited | Wholesale & retail | 2014 |
| Partido 2 Limited | Wholesale & retail | 2014 |
| Partum Systems Limited | Information & communication | 2020 |
| Parviflora Ltd | Wholesale & retail | 2024 |
| Parwood Equestrian Limited | Arts & recreation | 2010 |
| Passion Trust | Arts & recreation | 2010 |
| Pastanni Limited | Hospitality | 2024 |
| Pastel Pet Ltd | Wholesale & retail | 2024 |
| Paston Properties Limited | Real estate | 2012 |
| Patch & Paint Ltd | Construction | 2025 |
| Patent Limited | Administrative & support | 2022 |
| Path Beauty Ltd | Other services | 2024 |
| PATH4FOOTBALL Ltd | Arts & recreation | 2024 |
| Patina Nationale Ltd | Wholesale & retail | 2021 |
| Paul B. Richardson & SON Limited | Manufacturing | 2010 |
| Paul Fashion Agencies Limited | Wholesale & retail | 1999 |
| Paul Glover Mortgages Ltd | Financial services | 2013 |
| Paul Morgan Limited | Professional & scientific | 2019 |
| Paul Morris Hair Ltd | Other services | 2015 |
| Paul Pennant Ltd | Professional & scientific | 2024 |
| Paul Stuart Photography Limited | Professional & scientific | 2001 |
| Pavma Ltd | Construction | 2026 |
| Pawesome Prints Dog Walking Ltd | Administrative & support | 2025 |
| Payne Property Limited | Real estate | 2019 |
| PBI Holdings Limited | Professional & scientific | 2023 |
| PBK Boxing Limited | Arts & recreation | 2017 |
| Pbra Limited | Households | 2012 |
| PBX Hosting Limited | Information & communication | 2007 |
| PCS Care Ltd | Health & social care | 2023 |
| PD Young Ltd | Extraterritorial | 2025 |
| Pdca Solutions Management Limited | Information & communication | 2019 |
| PDM Properties Limited | Real estate | 2021 |
| Pdog Advisors Ltd | Professional & scientific | 2018 |
| PE Addlestone Limited | Construction | 2018 |
| PE Farnborough Limited | Construction | 2016 |
| PE Green Limited | Construction | 2015 |
| PE Limited | Professional & scientific | 2007 |
| PE Oxshott Limited | Construction | 2015 |
| PE Surbiton Limited | Construction | 2009 |
| Peacock Beauty Lounge Limited | Other services | 2023 |
| Peak Licensing Solutions Ltd | Professional & scientific | 2024 |
| Peak Snowsports Holdings Ltd | Professional & scientific | 2018 |
| Peak Technology Ltd | Administrative & support | 2018 |
| Pearce Properties (Guildford) Limited | Extraterritorial | 2009 |
| Pearce-Thomas Family Limited | Professional & scientific | 2022 |
| Pearl Oak Solutions Ltd | Construction | 2024 |
| Pearlfect Properties Limited | Real estate | 2026 |
| Pearmain Holdco Limited | Hospitality | 2023 |
| Pearmain Pubs 2 Ltd | Hospitality | 2023 |
| Pearmain Pubs Ltd | Hospitality | 2007 |
| Pearson Air Ltd | Manufacturing | 2019 |
| Peaslake Advisory Ltd | Professional & scientific | 2026 |
| Peaslake Community Garden C.I.C. | Arts & recreation | 2024 |
| Peaslake Free School Limited | Education | 2012 |
| Peaslake Pools Ltd | Water & waste | 2020 |
| Peaslake Village Stores Limited | Wholesale & retail | 2008 |
| Pebbini Psychotherapy Ltd | Health & social care | 2024 |
| Pebble Geoscience Ltd | Administrative & support | 2016 |
| Pebble Racing and Performance Ltd | Arts & recreation | 2019 |
| Peekabbo & Co. Ltd | Wholesale & retail | 2025 |
| Peeke-Vout Properties Limited | Real estate | 2015 |
| Peggipics Ltd | Wholesale & retail | 2022 |
| Pelag Limited | Administrative & support | 2016 |
| Pelican Procurement Services Limited | Hospitality | 1989 |
| Pelorus Jack Limited | Real estate | 2024 |
| Pemal Limited | Professional & scientific | 2018 |
| Pemberton ROW Limited | Real estate | 2000 |
| Pencon Productions Limited | Information & communication | 1976 |
| Penghis Limited | Professional & scientific | 2025 |
| Penn Martin Limited | Administrative & support | 2011 |
| Pensgrove Limited | Construction | 2010 |
| Pensim Industries Limited | Information & communication | 2021 |
| Pensive Enterprises Limited | Construction | 2015 |
| Penta Biotech Industry Ltd | Wholesale & retail | 2019 |
| Penta Global Food Ltd | Hospitality | 2020 |
| Penta INT Ltd | Information & communication | 2026 |
| Pentagon Accounting Services Limited | Professional & scientific | 2016 |
| Pentire Property Company Limited(The) | Real estate | 1940 |
| Pentreath Court Management (Guildford) Limited | Households | 1975 |
| Penwarden Property Ltd | Real estate | 2016 |
| People Change Services Ltd | Administrative & support | 2015 |
| People Stories Limited | Information & communication | 2026 |
| Peopleactiv Ltd | Administrative & support | 2012 |
| Pepow Limited | Wholesale & retail | 2013 |