| Pursol Limited | Real estate | 1983 |
| Purves Estates Holdings Limited | Other services | 2023 |
| Purves Estates Limited | Other services | 2023 |
| Purview Consultancy Services Ltd | Information & communication | 2010 |
| Purview Group Limited | Professional & scientific | 2024 |
| Purview Lifesciences Limited | Wholesale & retail | 2024 |
| Purview Technologies Limited | Information & communication | 2022 |
| Purvis Marquee Hire Ltd. | Hospitality | 1978 |
| Pusa VII SLP, L.P. | | 2006 |
| Pusa Viii SLP, L.P. | | 2007 |
| Push and Go LP | | 2016 |
| Push&Pull Ltd | Real estate | 2021 |
| Pushpa Real Estates Ltd | Real estate | 2024 |
| Puszta Limited | Hospitality | 2015 |
| Putlock Invest LP | | 2014 |
| Putt Putt Taxis Ltd. | Professional & scientific | 2003 |
| Putty Digital Limited | Information & communication | 2022 |
| Puzzled Monkey Ltd. | Administrative & support | 2013 |
| PV Infinity LP | | 2008 |
| PVF SLP, L.P. | | 2006 |
| Pvi-Ccl LP | | 2002 |
| Pvlp-R Limited Partnership | | 1998 |
| PVY Limited | Real estate | 2011 |
| PW Surfacing Services Ltd | Construction | 2018 |
| PW Surveyors (UK) Ltd | Administrative & support | 2008 |
| PW Technical Consulting Ltd | Information & communication | 2018 |
| Pwbtl Investments Ltd | Real estate | 2022 |
| PWK Property Ltd | Households | 2022 |
| PWM Autotech Ltd | Wholesale & retail | 2025 |
| PWP RE Fund I SLP LP | | 2007 |
| PWP RE Fund I US Feeder LP | | 2007 |
| PXN Group Limited | Financial services | 2025 |
| Pybc Design Limited | Manufacturing | 2023 |
| Pylos Consulting Ltd | Information & communication | 2025 |
| Pyproperty Ltd | Construction | 2023 |
| Pyramid Services Limited | Professional & scientific | 2015 |
| Pyrsos & Co | | 1994 |
| Pyrus Media Ltd | Professional & scientific | 2020 |
| Pysano Ltd | Information & communication | 2024 |
| PZ Investment Limited | Construction | 2021 |
| PZ Property Ltd | Real estate | 2021 |
| Péryne Laurent Therapy LP | | 2025 |
| Q Couriers Ltd | Transport & logistics | 2023 |
| Q Flow LP | | 2015 |
| Q Redesign Limited | Other services | 2018 |
| Q&K 1 Limited | Hospitality | 2024 |
| Q&K Co 2 Limited | Hospitality | 2024 |
| Q-Broker Management Limited | Information & communication | 2016 |
| Q-Doc Ltd | Manufacturing | 2026 |
| Q-Free (Bristol) UK Limited | Administrative & support | 1998 |
| Q.C. Private Hire L.P. | | 2013 |
| Q19 Ltd | Hospitality | 2018 |
| Q4 Group L.P. | | 2008 |
| QA Dudley Limited | Professional & scientific | 2012 |
| QA Fintax Accountants Ltd | Professional & scientific | 2026 |
| QA Technical Services Limited | Wholesale & retail | 2017 |
| QA Vehicle Solutions Limited | Wholesale & retail | 2016 |
| QA Willowbrae Limited | Wholesale & retail | 2023 |
| Qadri Tours and Travels Ltd | Administrative & support | 2025 |
| Qadvis UK Limited | Wholesale & retail | 2020 |
| Qaim Ventures Limited | Real estate | 2024 |
| Qair Scotland Limited | Energy | 2021 |
| Qardvisit Limited | Information & communication | 2025 |
| Qasim IT Services Ltd | Wholesale & retail | 2025 |
| Qatalyst Ltd | Information & communication | 2025 |
| Qatarat Ltd | Water & waste | 2024 |
| QBC Accreditacione Ltd | Professional & scientific | 2026 |
| QBE Enterprise Group Ltd | Manufacturing | 2026 |
| QCL Employee Scheme Ltd | Financial services | 2021 |
| QCR Motors Ltd | Wholesale & retail | 2026 |
| QCR Property Limited | Hospitality | 2025 |
| QCS Hospitality Limited | Hospitality | 2018 |
| Qctis Limited | Professional & scientific | 2013 |
| QD Maintenance Ltd | Construction | 2023 |
| QD UK Holdings GP LLP | | 2017 |
| QD UK Holdings Limited Partnership | | 2017 |
| QED Marine Projects Limited | Administrative & support | 2020 |
| QED Modelling Ltd | Professional & scientific | 2012 |
| QED Naval Ltd | Professional & scientific | 2008 |
| Qedemel Ltd | Professional & scientific | 2022 |
| QF Holdings Limited | Financial services | 2015 |
| QFC TR Limited | Hospitality | 2025 |
| Qfdscks Business Limited | Information & communication | 2025 |
| QFR Pet Supplies Ltd | Wholesale & retail | 2025 |
| Qgif II AU Blocker E LP | | 2022 |
| Qgif II GP NO.2 Ltd | Administrative & support | 2022 |
| Qgif II Manager AU Blocker a LP | | 2023 |
| Qhjznh Ltd | Hospitality | 2025 |
| QHS Dbfm Holdco Limited | Financial services | 2017 |
| QHS Dbfmco Limited | Construction | 2017 |
| Qinara Ltd | Information & communication | 2024 |
| Qinetiq GP Limited | Professional & scientific | 2012 |
| Qinetiq PFP Limited Partnership | | 2012 |
| Qingchang Whisky Limited | Administrative & support | 2023 |
| Qirox Limited | Wholesale & retail | 2024 |
| QIS Security Limited | Professional & scientific | 2014 |
| Qitux Alliance LP | | 2017 |
| Qitv Scotland Limited | Administrative & support | 2023 |
| Qlar Pneumatic Conveying UK Ltd | Manufacturing | 2002 |
| QM Edinburgh Limited | Professional & scientific | 2013 |