| PRP Commercial Limited | Real estate | 2018 |
| PRP Reactive Ltd | Construction | 2014 |
| Prudent Consulting Limited | Professional & scientific | 2008 |
| PRV GB Fresh Services Limited | Financial services | 2025 |
| PS Accounting Solutions Limited | Professional & scientific | 2015 |
| PSH Automotive Consultants Limited | Professional & scientific | 2022 |
| PSI Marine Limited | Manufacturing | 2012 |
| PSR Design & Build Ltd | Construction | 2015 |
| Psychlegal Consultancy Ltd | Health & social care | 2024 |
| Psychshafaq Ltd | Wholesale & retail | 2023 |
| PSZ Group Ltd | Wholesale & retail | 2020 |
| Ptau Ltd | Wholesale & retail | 2015 |
| Ptau Medway Ltd | Wholesale & retail | 2023 |
| PTG Tyre Repair Materials Limited | Wholesale & retail | 2012 |
| PTH Solutions Ltd | Administrative & support | 2023 |
| PTL Group Ltd | Hospitality | 2024 |
| Publishing Research Laboratories Limited | Information & communication | 2007 |
| Puddings Coffee Shop Ltd | Hospitality | 2017 |
| Puddle Magnet Ltd | Wholesale & retail | 2022 |
| Puglx Ltd | Arts & recreation | 2023 |
| Puja Journal Ltd | Professional & scientific | 2025 |
| Pukka & Posh Ltd | Administrative & support | 2012 |
| Pulseiq Ltd | Information & communication | 2025 |
| Pumawell Limited | Financial services | 1982 |
| Pump Audio Limited | Administrative & support | 2015 |
| Pumps Direct Limited | Wholesale & retail | 2018 |
| Punk Rock Business Limited | Professional & scientific | 2017 |
| Punu Property Ltd | Real estate | 2023 |
| Purdy & Power Limited | Other services | 2004 |
| Purdy Investments Limited | Real estate | 2025 |
| Pure Beauty Limited | Other services | 2001 |
| Pure Blue Skies Limited | Wholesale & retail | 2017 |
| Pure Developments (Kent) Limited | Construction | 2020 |
| Pure Electrical & Renewables Limited | Construction | 2024 |
| Pure Hairdressing and Beauty Limited | Other services | 2001 |
| Pure Organicum Limited | Wholesale & retail | 2025 |
| Pure Pharma Ltd | Other services | 2023 |
| Pure Sound Ltd | Information & communication | 2016 |
| Pure Water for Life Ltd | Construction | 2020 |
| Purecharge Ltd | Construction | 2019 |
| Pureflow Plumbing Services Ltd | Construction | 2026 |
| Purehoward Limited | Real estate | 2025 |
| Purer Solutions Limited | Information & communication | 2017 |
| Purple Cat Consultancy and Training Services Limited | Professional & scientific | 2013 |
| Purple Circles Property Group Ltd | Real estate | 2019 |
| Purple Door Properties Limited | Real estate | 2007 |
| Purple Door Property Investments (Kent) Ltd | Real estate | 2006 |
| Purple Door Property Investments Ltd | Real estate | 2006 |
| Purple Garden SQ Entertainment Limited | Arts & recreation | 2023 |
| Purple Properties (Kent) Limited | Real estate | 2016 |
| Purple Ribbon Media Limited | Professional & scientific | 2020 |
| Purple Splash Concepts Limited | Hospitality | 2025 |
| PURPLE85 Ltd | Hospitality | 2018 |
| Purpleshine Designs Limited | Real estate | 2007 |
| Purposebuilt Intelligence Ltd | Information & communication | 2026 |
| Pursuing Pure Ltd | Wholesale & retail | 2020 |
| Putlands Property Limited | Real estate | 2014 |
| Puviksha Store Ltd | Wholesale & retail | 2025 |
| Puzzle 81 Ltd | Financial services | 2021 |
| Puzzling Books Limited | Information & communication | 2022 |
| PVH Consultancy Limited | Professional & scientific | 2008 |
| PW P27 UK Limited | Financial services | 2018 |
| PWM Property Group Ltd | Real estate | 2026 |
| PXB Consulting Ltd | Health & social care | 2021 |
| PXB Horizon Ltd | Financial services | 2021 |
| Pyramid Building Services (S.E.) Limited | Construction | 2014 |
| Pyro Control Limited | Manufacturing | 1996 |
| PYT Trans Services Ltd | Transport & logistics | 2025 |
| QBN Clothing Ltd | Wholesale & retail | 2025 |
| QED Design & Manufacture Limited | Manufacturing | 1985 |
| QI Building Solutions Limited | Construction | 2014 |
| QI Health and Care Limited | Health & social care | 2023 |
| Qintarq Consulting Ltd | Professional & scientific | 2011 |
| QMR Services Ltd | Mining & quarrying | 2023 |
| QP Confidential Ltd | Professional & scientific | 2014 |
| QP Online Limited | Manufacturing | 2011 |
| Qpquandary Ltd | Education | 2013 |
| Quad Star Limited | Manufacturing | 2019 |
| Quaiv TCG Ltd | Wholesale & retail | 2024 |
| Qualitree Services Limited | Agriculture & fishing | 2013 |
| Quality and Quantity Control Limited | Administrative & support | 2004 |
| Quality Care Assured Ltd | Health & social care | 2026 |
| Quality Care Kent Ltd | Health & social care | 2025 |
| Quality Carpentry Ltd | Construction | 2019 |
| Quality Plumbing, Heating & GAS Ltd | Construction | 2021 |
| Quality Process Solutions Limited | Professional & scientific | 1999 |
| Quantec Consultants Limited | Professional & scientific | 1986 |
| Quantec Electrical Inspection & Testing Services Limited | Extraterritorial | 2011 |
| Quantol ADS Limited | Administrative & support | 2010 |
| Quantum Care Quality Consultancy Ltd | Professional & scientific | 2023 |
| Quantum Conductors Ltd | Manufacturing | 2019 |
| Quantum Investments Capital Partners Limited | Information & communication | 2023 |
| Quartstead Holdings Limited | Financial services | 2024 |
| Quartzology Ltd | Wholesale & retail | 2022 |
| Quattro Design and Print Ltd | Manufacturing | 2003 |
| Qube Automotive Ltd | Information & communication | 2010 |
| Queen Street Mews Management Company Limited | Households | 2016 |
| Queens Corner Management Company Limited | Households | 2009 |
| Quell Limited | Administrative & support | 2013 |
| Quest Electrical & Property Services Ltd | Construction | 2022 |