| PS CAD Services Ltd | Administrative & support | 2017 |
| PS Engine Services Ltd | Wholesale & retail | 2012 |
| PS Plant Services Limited | Wholesale & retail | 2005 |
| PSC Electrical Ltd | Construction | 2018 |
| PSG Construction Services Ltd | Construction | 2024 |
| Psjt Ltd | Real estate | 2018 |
| PSL Renewables Ltd | Construction | 2024 |
| PSP Asset Protection Limited | Manufacturing | 2011 |
| PST Group Limited | Construction | 2015 |
| PST Group Properties Limited | Real estate | 2024 |
| PSV Commercial Group Ltd | Wholesale & retail | 2022 |
| PSV Tech Engineering Limited | Wholesale & retail | 2014 |
| PT Financial Management Limited | Financial services | 2008 |
| PTC Online Ltd | Extraterritorial | 2013 |
| PTE Site Services Ltd | Professional & scientific | 2006 |
| PTR Property Services Limited | Construction | 2025 |
| Publishing Sales International Limited | Information & communication | 2019 |
| Puddleducks (Holdings) Ltd | Health & social care | 2019 |
| Pullen Design Services Limited | Real estate | 2024 |
| Pulse Apparel Ltd | Manufacturing | 2026 |
| Pulse Fire & Security Ltd | Construction | 2020 |
| Pulse Spin & Fitness Ltd | Arts & recreation | 2026 |
| Pumped Baits Limited | Agriculture & fishing | 2023 |
| Pumpkin Patch Farms Limited | Arts & recreation | 2017 |
| Punch Construction Limited | Construction | 2000 |
| Punch Eco Ltd | Construction | 2021 |
| Purcell Equine Services Limited | Agriculture & fishing | 2025 |
| Purdy Land Limited | Administrative & support | 2014 |
| Purdy Property Investments Limited | Real estate | 2019 |
| Pure & Sure Limited | Wholesale & retail | 2017 |
| Pure 41 Limited | Financial services | 2020 |
| Pure Body Personal Training Limited | Other services | 2007 |
| Pure Creations Ltd | Manufacturing | 2025 |
| Pure Endodontics Ltd | Health & social care | 2018 |
| Pure Fuel Solutions Ltd | Administrative & support | 2020 |
| Pure Love Care Homes Limited | Health & social care | 2021 |
| Pure MEP Ltd | Other services | 2023 |
| Pure Plus Clothing Limited | Wholesale & retail | 2017 |
| Pure Reset Limited | Administrative & support | 2025 |
| Pure Touch Cleaning Services Ltd | Administrative & support | 2025 |
| Purely Paws Grooming Limited | Administrative & support | 2026 |
| Pureville Properties Ltd | Real estate | 2023 |
| Purple Conversation Community Interest Company | Administrative & support | 2016 |
| Purple Dogs Limited | Hospitality | 2006 |
| Purple Eagle Limited | Professional & scientific | 2009 |
| Purple Panther Logistics Ltd | Transport & logistics | 2025 |
| Purple Patch Marketing Consultants Ltd | Professional & scientific | 2010 |
| Purple Zebra Properties Ltd | Real estate | 2026 |
| Purpleways Ltd | Professional & scientific | 2025 |
| Purpose Builds Limited | Construction | 2025 |
| Purrell Construction Ltd | Construction | 2021 |
| Purrfect Properties Ltd | Real estate | 2025 |
| Purser Knight Ltd | Transport & logistics | 2018 |
| Pursey Property Limited | Extraterritorial | 2024 |
| Push 2TECHO Limited | Financial services | 2024 |
| Push Energy Limited | Energy | 2019 |
| Push Generation and Supply Limited | Construction | 2020 |
| Push Group Holdings Limited | Financial services | 2021 |
| Push Investment Group Limited | Financial services | 2012 |
| Push Power Limited | Construction | 2020 |
| Push Procurement Limited | Energy | 2016 |
| Push Propco Limited | Financial services | 2021 |
| Push Renewco Limited | Financial services | 2021 |
| Push Resources Limited | Professional & scientific | 2022 |
| PV Lincoln Holdings Limited | Real estate | 2016 |
| PVC Cladding Limited | Extraterritorial | 2012 |
| PVG Design Limited | Administrative & support | 2012 |
| PVI Properties Ltd | Real estate | 2022 |
| PVL Corporate Services Ltd | Administrative & support | 2021 |
| PWC Line Boring&Engineering Ltd | Manufacturing | 2013 |
| PWE Productions Ltd | Arts & recreation | 2023 |
| PWK Contractors Ltd | Construction | 2023 |
| PWM Contracting Ltd | Information & communication | 2023 |
| PWN (Consultancy) Limited | Real estate | 2026 |
| PWR Drylining Ltd | Other services | 2025 |
| Pybus Rigg & Squiers Ltd | Administrative & support | 2020 |
| Pyefleet Rural Ltd | Agriculture & fishing | 2020 |
| Pyefleet Rural Services Limited | Agriculture & fishing | 2018 |
| Pygidium Ltd | Information & communication | 2017 |
| Pylon Court Freehold Ltd | Households | 2024 |
| Pylons East Anglia Limited | Professional & scientific | 2022 |
| Pyne Properties Ltd | Real estate | 2026 |
| Pyrinome Therapeutics Limited | Professional & scientific | 2024 |
| Pyrke Commercial Removers Limited | Transport & logistics | 1993 |
| Pyrkes Property Services Limited | Real estate | 1997 |
| PZA Composites Ltd | Manufacturing | 2022 |
| Q & a Ltd | Wholesale & retail | 2026 |
| Q & H London Limited | Professional & scientific | 2009 |
| Q Ball Ltd | Arts & recreation | 2014 |
| Q&A N Limited | Real estate | 2024 |
| Q. C. Management RTM Ltd | Real estate | 2011 |
| Q.M. Properties Limited | Households | 1989 |
| Q5 Management Limited | Administrative & support | 2024 |
| QA Maintenance Limited | Construction | 2019 |
| Qanovi Ltd | Wholesale & retail | 2015 |
| Qbouk Accounting Solutions Ltd | Professional & scientific | 2024 |
| QCM Care Estates Limited | Real estate | 2024 |
| QCM Healthcare Limited | Administrative & support | 2016 |
| QCM Healthcare Transport Limited | Health & social care | 2019 |
| QCX Marketing Limited | Administrative & support | 2000 |