| PAH Limited | Professional & scientific | 2018 |
| PAH Rail Operations Limited | Transport & logistics | 2026 |
| PAL Plumbing and Heating Ltd | Construction | 2012 |
| Paramount Safety Services Ltd | Construction | 2021 |
| Parent-Support Ltd | Professional & scientific | 2023 |
| Parental Alienation Esupport Limited | Education | 2025 |
| Parker Air Conditioning Limited | Construction | 1987 |
| Parker Brothers UK Ltd | Administrative & support | 2022 |
| Parkhill Plumbing Limited | Construction | 1999 |
| Parklands Freeholders (Tunbridge Wells) Ltd | Households | 2024 |
| Parklands Management (Tunbridge Wells) Limited | Households | 1982 |
| PAT NOW Ltd | Administrative & support | 2020 |
| Pathstone International Ltd | Administrative & support | 2025 |
| PAW Buddys Pet Care Limited | Other services | 2013 |
| Paycross Limited | Information & communication | 2022 |
| PC Headache (London) Limited | Information & communication | 2010 |
| PDJ Software Limited | Information & communication | 2016 |
| PDM Bespoke Ltd | Wholesale & retail | 2016 |
| Peach Heating & Electrical Ltd | Construction | 2023 |
| Peak Telecom UK Limited | Administrative & support | 1999 |
| Peake Property Solutions Ltd | Construction | 2020 |
| Pegasus Enterprises Ltd | Real estate | 2004 |
| Pegasus Sports Media Limited | Information & communication | 2024 |
| Pegcon Ltd | Administrative & support | 2026 |
| Peneil Property Co. Limited | Real estate | 1973 |
| Percy Edward Hills (BEM) Ltd | Real estate | 2019 |
| Perfectly Swedish Limited | Administrative & support | 2005 |
| Perivallon Ltd | Professional & scientific | 2024 |
| Perrie Consulting Ltd | Other services | 2024 |
| Personal Best Group Ltd | Construction | 2023 |
| Personal Best Tiling Ltd | Construction | 2013 |
| Personal Brand Business Building Ltd | Administrative & support | 2023 |
| PEU Capital Ltd | Administrative & support | 2025 |
| Picture Perfect Living Ltd | Construction | 2019 |
| Pierce Developments London Ltd | Real estate | 2021 |
| Pilgrim Flexibles Limited | Administrative & support | 2016 |
| Pilgrim Medical Limited | Health & social care | 2022 |
| Pink Tiger Virtual Assistants Ltd | Information & communication | 2025 |
| Pink Tortoise Limited | Wholesale & retail | 2022 |
| Pinkponyclubbb Limited | Hospitality | 2025 |
| Pinsent Banister Consulting Partners Limited | Professional & scientific | 2025 |
| Pipedream Engineering Ltd | Wholesale & retail | 2026 |
| Piper Beauty Ltd | Manufacturing | 2022 |
| Pirituba Motors Limited | Wholesale & retail | 2024 |
| Pivotal Group-Uk Ltd | Professional & scientific | 2023 |
| Pixel Digital Limited | Information & communication | 2017 |
| PJ Arnold Electrical Ltd | Construction | 2016 |
| PJ Waterproofing Specialists Ltd | Construction | 2015 |
| PJE Construction Services Limited | Construction | 2021 |
| Planit Fibre Ltd | Information & communication | 2024 |
| Planning Promotions Ltd | Professional & scientific | 2023 |
| Platinumstone Developments Birchwood Ltd | Construction | 2025 |
| Plum Holdings Limited | Real estate | 2016 |
| Plumbob Carpentry Limited | Manufacturing | 2013 |
| Pocket Smart Limited | Administrative & support | 2020 |
| Poraflex Ltd | Construction | 2003 |
| Porteous Ltd. | Professional & scientific | 2007 |
| Portland Apartments South East Limited | Administrative & support | 2016 |
| Portland Commercial Limited | Real estate | 1990 |
| Portland Homes Management Company Limited | Administrative & support | 2016 |
| Poynings Lodge Ltd | Households | 2021 |
| PRC Joinery Limited | Construction | 2014 |
| Preen Aesthetics & Beauty Ltd | Other services | 2024 |
| Prelude Developments Limited | Extraterritorial | 2024 |
| Prelude Ltd | Professional & scientific | 2022 |
| Prelude Stone Limited | Construction | 1997 |
| Prelude Stone Property Limited | Professional & scientific | 2002 |
| Pressbuyer.Com Limited | Professional & scientific | 2000 |
| Prestige Hmo's Limited | Real estate | 2017 |
| Pretty Desirable Limited | Wholesale & retail | 2007 |
| Primal Supplementation LLP | | 2024 |
| Prime City Abodes Ltd | Real estate | 2019 |
| Prime Clean Professionals Ltd | Administrative & support | 2025 |
| Prime Staycation Ltd | Hospitality | 2022 |
| Pro Cuts Media Limited | Information & communication | 2005 |
| Pro Electrical South East Ltd | Construction | 2019 |
| Project & Efficiency Solutions Ltd | Manufacturing | 2024 |
| Property Building Group Limited | Real estate | 2015 |
| Property Damage London Ltd | Construction | 2019 |
| Property Done Properly Limited | Real estate | 2022 |
| Property Field Ltd | Real estate | 2022 |
| Propitico Ltd | Information & communication | 2024 |
| Providence Supported Homes Ltd | Health & social care | 2025 |
| PSP Building Services Ltd | Construction | 2020 |
| Psyche London Ltd | Health & social care | 2019 |
| Psytech Holdings Limited | Information & communication | 2023 |
| Ptrec Ltd | Administrative & support | 2026 |
| PUBLISHED4U Limited | Information & communication | 2016 |
| PWR Global Ltd | Information & communication | 2026 |
| QNY Limited | Arts & recreation | 2006 |
| QS Quest Global Markets Ltd | Other services | 2018 |
| Quadex Exhibitions Limited | Professional & scientific | 2004 |
| Quality Company Partners Ltd | Administrative & support | 2020 |
| Qualitypro Supplies Ltd | Wholesale & retail | 2024 |
| Quanta Lift Advisory Ltd | Professional & scientific | 2026 |
| R a Plumbing Services Limited | Construction | 2003 |
| R and T Supplies Ltd | Wholesale & retail | 2025 |
| R Bolt Plumbing Services Ltd | Construction | 2016 |
| R Callow Electrical Ltd | Construction | 2018 |
| R Childs Electrical Ltd | Administrative & support | 2016 |