| Positive Pathways Limited | Health & social care | 2010 |
| Posiv Ltd | Information & communication | 2023 |
| Poslingford Ltd | Transport & logistics | 2015 |
| Posnett Limited | Construction | 2018 |
| Posso Ltd | Information & communication | 2019 |
| Post Luxury Ltd | Wholesale & retail | 2024 |
| Posting Trans Ltd | Transport & logistics | 2013 |
| Pota & Kulena Delivery Ltd | Transport & logistics | 2025 |
| Potentia Ltd | Arts & recreation | 2025 |
| Potform Community Interest Company | Education | 2025 |
| Pottco Data Solutions Ltd | Information & communication | 2024 |
| Pottertonpacs Limited | Manufacturing | 2012 |
| Pottery & Presence Ltd | Arts & recreation | 2025 |
| Potton Delph Ltd | Manufacturing | 2014 |
| Potum Consultancy Ltd | Professional & scientific | 2021 |
| Poulters Industrial Pipework Engineering Services Limited | Construction | 2011 |
| Poulton Properties Limited | Real estate | 2019 |
| Poundbury Management Limited | Information & communication | 2021 |
| Poundmonkey Ltd | Wholesale & retail | 2014 |
| Pounds & Dollars 2019 Ltd | Real estate | 2018 |
| Poundskart Ltd | Wholesale & retail | 2026 |
| Poundspace Ltd | Wholesale & retail | 2025 |
| Poutch Consulting Limited | Professional & scientific | 2017 |
| Pove Apparel Limited | Wholesale & retail | 2024 |
| POW Skips Limited | Water & waste | 2022 |
| Powder Colours UK Ltd | Manufacturing | 2021 |
| Power ABC Limited | Other services | 2019 |
| Power Analytix Limited | Professional & scientific | 2023 |
| Power Design Control Limited | Wholesale & retail | 2013 |
| Power FAM Ltd | Other services | 2018 |
| Power Flow Electrics Limited | Construction | 2026 |
| Power Management Services Limited | Construction | 2010 |
| Power of Care Services Ltd | Health & social care | 2022 |
| Power PSG (UK) Ltd | Financial services | 2026 |
| Power Quality Systems Limited | Professional & scientific | 2012 |
| Power Racks Direct Limited | Professional & scientific | 1993 |
| Power Scaffolding Ltd | Construction | 2025 |
| Power T&D Solutions (Ptds) Ltd | Financial services | 2026 |
| Power Towers Limited | Manufacturing | 2007 |
| Powered by Intelligence Limited | Information & communication | 2025 |
| Powered UP Limited | Construction | 2011 |
| Powerful Designs Ltd | Professional & scientific | 2022 |
| Powerfull Logistics Ltd | Transport & logistics | 2026 |
| Powernexus Limited | Professional & scientific | 2024 |
| Powpex Limited | Wholesale & retail | 2020 |
| Powrie Cross Advisory Limited | Administrative & support | 2022 |
| Powrshift Ltd | Transport & logistics | 2018 |
| PP 29 Investments Ltd | Other services | 2020 |
| PP Chauhan & Co Limited | Real estate | 2026 |
| PP Events Ltd | Arts & recreation | 2026 |
| PP PROPERTY1 Ltd | Households | 2018 |
| PPA Developments Ltd | Construction | 2014 |
| Ppah Limited | Real estate | 2021 |
| PPB Investments Ltd | Financial services | 2025 |
| Ppbs Group Limited | Real estate | 2026 |
| Ppe-Uk Solutions Limited | Manufacturing | 2020 |
| PPJ Properties Limited | Real estate | 2014 |
| Ppjw Ltd | Transport & logistics | 2014 |
| PPK Leicester Ltd | Hospitality | 2024 |
| PPL Clinic Limited | Other services | 2019 |
| PPL PRS Limited | Administrative & support | 2016 |
| PPN Developers Ltd | Real estate | 2024 |
| PPN Estates Ltd | Real estate | 2026 |
| PPS Consultancy Services Limited | Information & communication | 2015 |
| PPS Pristine Property Services Ltd | Construction | 2019 |
| Ppuk Limited | Wholesale & retail | 2026 |
| PPW Team Ltd. | Construction | 2012 |
| PPX Services Limited | Wholesale & retail | 1994 |
| PPX Solutions Ltd | Administrative & support | 2014 |
| PR & S (UK) Logistics Ltd | Transport & logistics | 2024 |
| PR Accurate Care Limited | Health & social care | 2022 |
| PR Electric Works Ltd | Construction | 2018 |
| PR Media & Entertainment Services Limited | Other services | 2007 |
| PR Motors Automotive Ltd | Wholesale & retail | 2026 |
| PR West Ltd | Real estate | 2021 |
| PR09RAM Limited | Information & communication | 2009 |
| PRA Properties Limited | Real estate | 2014 |
| Prab Trading Ltd | Wholesale & retail | 2019 |
| Prabh Logistics Ltd | Transport & logistics | 2025 |
| Prabhu Enterprises Limited | Manufacturing | 1988 |
| Pracademia Group Limited | Other services | 2024 |
| Prachi Foods Limited | Manufacturing | 2017 |
| Praco Packaging Supplies Ltd | Administrative & support | 2023 |
| Practicable Care Limited | Health & social care | 2021 |
| Practical Builders Ltd | Construction | 2025 |
| Practical Car and Van Rental (Leicester) Limited | Administrative & support | 1986 |
| Practical Care Solutions Limited | Health & social care | 2014 |
| Practical Personal Assistant Ltd | Administrative & support | 2025 |
| Practilink Technologies Limited | Information & communication | 2026 |
| Praetum Ltd | Administrative & support | 2023 |
| Pragmatic.Xp Ltd | Real estate | 2022 |
| Prague Properties Limited | Extraterritorial | 1994 |
| Prahan Enterprises Ltd | Wholesale & retail | 2025 |
| Praise Mercy Health and Home Care Limited | Hospitality | 2014 |
| Praise Mercy Homecare Limited | Administrative & support | 2018 |
| Prajapati Estates Ltd | Real estate | 2022 |
| Prakash Builder Limited | Construction | 2021 |
| Prakash Health Ltd | Administrative & support | 2007 |
| Prakash Ltd | Wholesale & retail | 2019 |
| Prakruti Healthcare Ltd | Health & social care | 2022 |