| PDD Couriers Ltd | Transport & logistics | 2018 |
| PDF Project Management Limited | Professional & scientific | 2020 |
| PDH Joinery Ltd | Manufacturing | 2014 |
| Pdjm Motors Limited | Wholesale & retail | 2018 |
| PDL Marine Limited | Manufacturing | 2012 |
| PDS Autos Limited | Administrative & support | 2012 |
| PDS Commercial Limited | Construction | 2026 |
| PDS Investment Holdings Limited | Financial services | 2024 |
| Peach Translations Ltd | Professional & scientific | 2022 |
| Peacock House RTM Company Limited | Households | 2007 |
| Peacock Properties Services Limited | Real estate | 2017 |
| Peak Payments Ltd | Wholesale & retail | 2025 |
| Peak Performance Management Development Limited | Administrative & support | 2013 |
| Peak Performance Martial Arts and Fitness Limited | Arts & recreation | 2021 |
| Peak Retreats Limited | Administrative & support | 2002 |
| Peak Retreats Trustees Limited | Other services | 2025 |
| Peak Sporting Performance Limited | Health & social care | 2007 |
| Peaks Catering Ltd | Hospitality | 2018 |
| Peaks Catering Retail Ltd | Wholesale & retail | 2020 |
| Peaks Property Management Ltd | Real estate | 2024 |
| Pear Technology Services Limited | Information & communication | 1995 |
| Pear Tree Prime Properties Limited | Real estate | 2011 |
| Pear Tree Properties (HIA) Limited | Real estate | 2016 |
| Pearce Digital Products Ltd | Professional & scientific | 2025 |
| Pearce Marketing Services Ltd | Professional & scientific | 2025 |
| Pearl Fitout Ltd | Manufacturing | 2012 |
| Pearl Luxe Ltd | Manufacturing | 2020 |
| Pearls and Roses Limited | Health & social care | 2024 |
| Pearse Audio Solutions Limited | Information & communication | 2026 |
| Pecan Cafe Ltd | Hospitality | 2023 |
| Peep Health Ltd | Information & communication | 2026 |
| Peety Consultancy Limited | Professional & scientific | 2022 |
| Peety Properties Limited | Real estate | 2021 |
| Pegasus Adventure Breaks Ltd | Health & social care | 2025 |
| Pegasus Design & Management Ltd | Professional & scientific | 2025 |
| Pegasus Global Developments Ltd | Construction | 2025 |
| Pembroke Chambers Residents Association Ltd | Households | 2012 |
| Pembroke Park Residents Association Co Limited | Households | 1998 |
| Pembrook's of Liss Ltd. | Extraterritorial | 2007 |
| Penado UK | Extraterritorial | 2015 |
| Penbridge Marine Limited | Professional & scientific | 2015 |
| Penelope Jones Contracting Ltd | Professional & scientific | 2015 |
| Pengar Properties Limited | Real estate | 2002 |
| Penguin Developments UK Limited | Construction | 2022 |
| Penhale News Limited | Wholesale & retail | 2018 |
| Peninsula Homes (Southern) Ltd | Real estate | 2021 |
| Peninsular Capital PLC | Financial services | 2022 |
| Penncroft Lancing RTM Limited | Households | 2025 |
| Penningtons Electrical Limited | Construction | 2008 |
| Penns Properties Limited | Construction | 2024 |
| Penntangpaint Limited | Health & social care | 2021 |
| Penny Building Ltd | Construction | 2014 |
| Penny Freedom Limited | Extraterritorial | 2019 |
| Pensa Cooling Services Ltd | Manufacturing | 2012 |
| Penta Procurement Limited | Administrative & support | 2018 |
| Pentraze Limited | Manufacturing | 1983 |
| Penwern Limited | Information & communication | 2017 |
| People and Stories Ltd | Arts & recreation | 2020 |
| Peppermill Pubs Limited | Hospitality | 2007 |
| Perfect Call Healthcare Ltd | Health & social care | 2019 |
| Perfect Days OUT Ltd | Transport & logistics | 2021 |
| Perfect Kebab Portsmouth Ltd | Hospitality | 2022 |
| Perfect Living Space Limited | Real estate | 2022 |
| Perfect Pitch Roofing Limited | Construction | 2024 |
| Perfect Plumbing and Building Services Ltd | Construction | 2026 |
| Perfect Rooms 4U Ltd | Real estate | 2010 |
| Perfect Skin Ltd | Other services | 2014 |
| PERFECT77 Limited | Real estate | 2025 |
| Performance Vans Limited | Wholesale & retail | 2022 |
| Performance Vans Southern Ltd | Wholesale & retail | 2026 |
| Perissox Ltd | Financial services | 2025 |
| Perma-Fix Limited | Construction | 2012 |
| Perry & Parkes Contractors Ltd | Construction | 2019 |
| Perry Property Ltd | Administrative & support | 2017 |
| Person Centred Support Ltd | Health & social care | 2023 |
| Personica Ltd | Information & communication | 2022 |
| Personifide Limited | Administrative & support | 2019 |
| Pestforce Bordon Ltd | Information & communication | 2026 |
| Pestrambo Limited | Administrative & support | 2025 |
| Peta Business Solutions Limited | Education | 2023 |
| Peta Limited | Other services | 1982 |
| Pete's Fish & Chips Ltd | Hospitality | 2025 |
| Peter Celik Interiors Ltd | Construction | 2019 |
| Peter Groome Models Ltd | Manufacturing | 2019 |
| Peter Higgins Mediation Ltd | Professional & scientific | 2021 |
| Peter Macgregor Consulting Ltd. | Professional & scientific | 1999 |
| Peter Youell Consulting Ltd | Information & communication | 2020 |
| Petersham House Management Limited | Hospitality | 1985 |
| Petra Signboardservices Limited | Other services | 2021 |
| Petrovskogo Limited | Wholesale & retail | 2024 |
| Petti-Cloux Limited | Other services | 2015 |
| PG Mechanical Design Ltd | Construction | 2017 |
| PGB Accountancy Limited | Professional & scientific | 2020 |
| PGM Graphical Design Limited | Wholesale & retail | 2024 |
| PGS Group Southern Ltd | Construction | 2024 |
| PGS Installations Solent Limited | Construction | 2018 |
| PH Marine Services Limited | Construction | 2018 |
| Pham's Holding Ltd | Financial services | 2025 |
| Pharma Aesthetics Ltd | Health & social care | 2020 |
| Pharmacistevolve Ltd | Professional & scientific | 2026 |