| Pomiuk Ltd | Other services | 2017 |
| Poochie on the Block Ltd | Other services | 2024 |
| Pool Magician Ltd | Administrative & support | 2019 |
| Pool Wizards Ltd | Construction | 2026 |
| Poole Construction Group Ltd | Construction | 2021 |
| Poole Home Developers Ltd | Construction | 2024 |
| Pools by Design Ltd | Construction | 2012 |
| Popsco Ltd | Administrative & support | 2023 |
| Popuparena Ltd | Arts & recreation | 2009 |
| Port Road Apartments Ltd | Construction | 2018 |
| Portelet Cottage Ltd | Health & social care | 2017 |
| Porter Systems Ltd | Professional & scientific | 2021 |
| Portfolio Business Services Limited | Professional & scientific | 1989 |
| Portwaine Enterprise Ltd | Information & communication | 2020 |
| Potential Limited | Construction | 1997 |
| Potential PT Ltd | Education | 2022 |
| Potts Training and Consulting Ltd. | Information & communication | 2012 |
| Pour Gaia Ltd | Wholesale & retail | 2018 |
| Power Engineering Solutions Limited | Administrative & support | 2009 |
| Power Experts Ltd | Construction | 2026 |
| Power to Art Ltd | Wholesale & retail | 2019 |
| Power Trace GEO Limited | Mining & quarrying | 2018 |
| Powerhouse Partnership Limited | Professional & scientific | 1998 |
| Powerhouse Plumbing & Heating Ltd | Construction | 2019 |
| Powerplay Cricket Coaching Limited | Arts & recreation | 2025 |
| Powerplay Sports Coaching Ltd | Arts & recreation | 2019 |
| Powerwise Electrics and Heating Ltd | Construction | 2025 |
| PP Salaries Limited | Administrative & support | 2023 |
| PP UK ESS Limited | Financial services | 2018 |
| PP8 Marketing Ltd | Professional & scientific | 2015 |
| PR Ductwork Ltd | Construction | 2024 |
| Practical AI Consultancy Ltd | Information & communication | 2026 |
| Practice Growth Agency Ltd | Professional & scientific | 2014 |
| Practix Technology Limited | Information & communication | 2025 |
| Praetorian Advisors 2 Limited | Professional & scientific | 2015 |
| Pravtile Limited | Real estate | 1982 |
| Praxair Offshore Services Limited | Professional & scientific | 2013 |
| Precious Foods Company Ltd | Hospitality | 2013 |
| Precise Fire Solutions Ltd | Construction | 2026 |
| Precision Beauty by Danielle Ltd | Other services | 2025 |
| Precision Made Property Limited | Financial services | 2026 |
| Prelight Ltd | Information & communication | 2021 |
| Premier Care Investments Limited | Health & social care | 2015 |
| Premier Lock Solutions Ltd | Administrative & support | 2024 |
| Premium Golf Limited | Wholesale & retail | 2003 |
| Premium Professional Services Ltd | Professional & scientific | 2026 |
| Preparental Ltd | Information & communication | 2023 |
| Prepnavigator Limited | Information & communication | 2026 |
| Presidia Limited | Extraterritorial | 2009 |
| Press&Clean Ironing Experts Ltd | Administrative & support | 2024 |
| Pressendye Limited | Administrative & support | 2019 |
| Prestige Drylining Limited | Construction | 2007 |
| Prestige Funerals Ltd | Other services | 2020 |
| Prestige UK Health Ltd | Health & social care | 2023 |
| Prestige Worldwide Homes Limited | Real estate | 2019 |
| Pretty Perfect Homes Limited | Real estate | 2016 |
| Preyshot Estate Limited | Real estate | 2003 |
| Price & Pierce Forest Products Ltd | Wholesale & retail | 1999 |
| Price Business Services Limited | Professional & scientific | 2013 |
| Priest Moor Ltd | Households | 2021 |
| Primary Care Pharmacy Association (Pcpa) | Other services | 2019 |
| Primary Care Pharmacy Association CIC | Other services | 2024 |
| Primary Network Products (UK) Ltd | Wholesale & retail | 2005 |
| Prime Acrobatics Ltd | Arts & recreation | 2013 |
| Prime Bureau Limited | Financial services | 2006 |
| Prime Construction and Landscaping Ltd | Construction | 2023 |
| Prime Ground Projects Ltd | Construction | 2024 |
| Prime Health, Wellbeing and Fitness Limited | Health & social care | 2023 |
| Prime Kitchen Turkish Ltd | Hospitality | 2025 |
| Prime Time Services Limited | Professional & scientific | 1998 |
| Prime-Physique Ltd | Wholesale & retail | 2025 |
| Primeflow Heating & Cooling Ltd | Construction | 2024 |
| Primelife Care Service Limited | Health & social care | 2026 |
| Primetrue Ltd | Wholesale & retail | 2025 |
| Prince & Sons Limited | Wholesale & retail | 2012 |
| Print Audit Europe Limited | Information & communication | 2011 |
| Print the Trend Ltd | Wholesale & retail | 2019 |
| Prior PR Limited | Professional & scientific | 2012 |
| Priors Court (Management) Limited | Households | 1975 |
| Pritchardpropertiesskan Ltd | Real estate | 2024 |
| Private Medical Associates Limited | Financial services | 2004 |
| Privé Chauffeurs Ltd | Other services | 2026 |
| PRL Build Limited | Administrative & support | 2023 |
| PRL Consulting Group Limited | Administrative & support | 2023 |
| PRL Driving & Industrial Limited | Administrative & support | 2023 |
| PRL Tech Limited | Administrative & support | 2023 |
| Prmcs Holdings Limited | Information & communication | 2020 |
| Prmg Holdings Limited | Other services | 2018 |
| Prmg Issee Holdings Limited | Financial services | 2022 |
| Pro 4 Services Ltd | Construction | 2023 |
| Pro Cleaning Services Ltd | Other services | 2016 |
| Pro Colour Group Ltd | Manufacturing | 2026 |
| Pro Dent Techs Ltd. | Wholesale & retail | 2018 |
| Pro Exit Clean Ltd | Administrative & support | 2025 |
| Pro Garden by Cristian Ltd | Administrative & support | 2023 |
| Pro Leak Detection Ltd | Construction | 2023 |
| Pro-Teck Electrical Limited | Construction | 2008 |
| PRO100 Global Ltd | Wholesale & retail | 2016 |
| Procarswoking Limited | Transport & logistics | 2017 |
| Proclotec Limited | Information & communication | 2008 |