| Proper Cricket Ltd | Extraterritorial | 2025 |
| Property & Moore Ltd | Real estate | 2024 |
| Property Agendas Ltd | Real estate | 2021 |
| Property DL Limited | Real estate | 2025 |
| Property Punks Ltd | Real estate | 2021 |
| Propiti Ltd | Real estate | 2025 |
| Prosbel Ltd | Hospitality | 2025 |
| Prosperity Jinchen International Trading Co., Ltd. | Wholesale & retail | 2025 |
| Protech Electrical Services Ltd | Construction | 2007 |
| Protech Installations Direct Ltd | Construction | 2023 |
| Protech Property Limited | Financial services | 2016 |
| Protego Asset Protection Ltd | Professional & scientific | 2025 |
| Protouch Painting & Decorating Ltd | Administrative & support | 2017 |
| Provision Property Services Ltd | Real estate | 2024 |
| Provision Property Ventures Ltd | Real estate | 2024 |
| PSR Staffing Solutions Ltd | Administrative & support | 2023 |
| PSV Civils and Construction Ltd | Construction | 2023 |
| PT With TC Limited | Education | 2023 |
| PTC Supplies & Services Limited | Administrative & support | 2013 |
| PTC Utility Services Ltd | Construction | 2025 |
| Ptcs Services Limited | Professional & scientific | 2019 |
| Ptpr Admin Services Limited | Administrative & support | 2021 |
| PTS (NDT) Limited | Professional & scientific | 2019 |
| PTS (TQM) Limited | Professional & scientific | 2012 |
| PTS Group Holdings Limited | Professional & scientific | 2012 |
| Public House Architects Ltd | Professional & scientific | 2024 |
| Pulselink ADS Ltd | Professional & scientific | 2025 |
| Pulseup Media Ltd | Wholesale & retail | 2025 |
| Pumbaa Properties Ltd | Real estate | 2024 |
| Pumpkin Asset Management Co., Ltd | Professional & scientific | 2021 |
| Punjabi Tavern Limited | Hospitality | 2025 |
| Purdey's Financial Services Ltd | Professional & scientific | 2019 |
| Purdey's Ltd | Wholesale & retail | 2020 |
| Pure Cafe Ltd | Hospitality | 2024 |
| Pure Dance Studios Ltd | Education | 2024 |
| Pure Health Chiropractic Limited | Health & social care | 2011 |
| Pure Rail Solutions Ltd | Construction | 2020 |
| Pure Supplements Stafford Ltd | Wholesale & retail | 2024 |
| Purified Particles UK Ltd | Wholesale & retail | 2021 |
| Purple Caterpillar Business Services Ltd | Professional & scientific | 2023 |
| Purple Copper Ltd | Information & communication | 2023 |
| Purple DOT WDS Limited | Education | 2014 |
| Purple Orchid Massage and Beauty Ltd | Other services | 2019 |
| Pvim Ltd | Health & social care | 2022 |
| Pwtechnical Limited | Professional & scientific | 2026 |
| Pxnx Ltd | Construction | 2023 |
| Pyua Limited | Professional & scientific | 2016 |
| PZ Builders.Co.Uk Ltd | Construction | 2013 |
| Q 2017 Limited | Hospitality | 2013 |
| QA JV Limited | Construction | 2019 |
| QI Cheng Trade Ltd | Manufacturing | 2024 |
| Qianbaichuang Limited | Wholesale & retail | 2025 |
| Qiangxin Trade Ltd | Wholesale & retail | 2025 |
| Qianza Ltd | Professional & scientific | 2022 |
| Qiao Bang Trading Co., Ltd | Wholesale & retail | 2023 |
| Qiaoman Trading Co., Limited | Agriculture & fishing | 2025 |
| Qiji Import & Export Co., Ltd. | Extraterritorial | 2020 |
| Qilu Pharmaceutical (Inner Mongolia) Co., Ltd. | Wholesale & retail | 2024 |
| Qing Technology Ltd | Wholesale & retail | 2021 |
| Qingqin Ltd | Wholesale & retail | 2023 |
| Qiqu Group Ltd | Wholesale & retail | 2023 |
| Quality Air Service Limited | Manufacturing | 2011 |
| Quality Garden Supplies Limited | Wholesale & retail | 2009 |
| Quality Liquid Feeds Limited | Manufacturing | 2015 |
| Quality Quantity Surveying Ltd | Professional & scientific | 2014 |
| Quanlin Intelligent Technology Co., Ltd | Mining & quarrying | 2022 |
| Quantum Dispatch Ltd | Information & communication | 2025 |
| Quantum Entanglement Limited | Information & communication | 2013 |
| Quantumshire Limited | Wholesale & retail | 2025 |
| Quantyx Solutions Ltd | Information & communication | 2026 |
| Qube Private Ltd | Real estate | 2023 |
| Quercus & Conifer UK Ltd | Agriculture & fishing | 2023 |
| Quick Route Logistics Co., Ltd | Transport & logistics | 2025 |
| Quick Ting Haulage Ltd | Transport & logistics | 2025 |
| Quicktron UK Limited | Manufacturing | 2022 |
| Quigley Property Services Limited | Administrative & support | 2010 |
| Quimicos Fios Ltd | Extraterritorial | 2015 |
| Quintessential Quarters (Stafford) Limited | Professional & scientific | 2013 |
| Quirky Bird Workshops Ltd | Arts & recreation | 2025 |
| Quorum Consultancy Holdings Ltd | Extraterritorial | 2006 |
| Quorum Logistic Support (EOT) Limited | Financial services | 2021 |
| Quorum Logistic Support Limited | Professional & scientific | 2000 |
| Quyen Nails Ltd | Other services | 2022 |
| QY International Industry Co., Ltd | Extraterritorial | 2013 |
| Qzjinang Limited | Wholesale & retail | 2025 |
| R & J Mole Ltd | Construction | 2014 |
| R & K Roofing & Guttering Ltd | Construction | 2025 |
| R a Edwards & Partners Limited | Construction | 1998 |
| R Congreave Roofing Limited | Construction | 2008 |
| R D Fire Doors Ltd | Public administration | 2021 |
| R Dias Ltd | Health & social care | 2015 |
| R E Davies Limited | Transport & logistics | 2008 |
| R F Properties London Ltd | Construction | 2026 |
| R Hatfield & SON Ltd | Manufacturing | 2004 |
| R J Turner Limited | Agriculture & fishing | 2019 |
| R K Motor Services Limited | Wholesale & retail | 2007 |
| R Mirza Limited | Professional & scientific | 2018 |
| R P S Canalside Limited | Real estate | 2019 |
| R S J Builders Ltd | Construction | 2002 |
| R T Macfarlane Freehold Investments Ltd | Real estate | 2023 |