| Pentacle Disputes Ltd | Professional & scientific | 2018 |
| Pentag Healthcare Solutions Limited | Health & social care | 2025 |
| Pentagon Process Services Limited | Administrative & support | 2007 |
| Pentagon Technologies Ltd | Manufacturing | 2021 |
| Pentangle Communications Limited | Professional & scientific | 2017 |
| People and Business IFA Holdings Limited | Financial services | 2018 |
| People and Business IFA Limited | Financial services | 2014 |
| People Dynamix Limited | Administrative & support | 2016 |
| People Place Property Limited | Professional & scientific | 2026 |
| People Versus TV CIC | Information & communication | 2021 |
| Peoplegpt.Com Ltd | Administrative & support | 2024 |
| Peoples Care & Construction Ltd | Construction | 2025 |
| Peoples Fortune Construction Limited | Construction | 2025 |
| Peoplesbus Limited | Administrative & support | 2008 |
| PEP Tyres Ltd | Wholesale & retail | 2014 |
| Pepiliro Limited | Real estate | 2019 |
| Pepino Ltd | Hospitality | 2018 |
| Pepitos Liverpool Ltd | Hospitality | 2024 |
| Pepitos Pizza Ltd | Hospitality | 2026 |
| Pepper Cat Fats Limited | Hospitality | 2019 |
| Pepperberry Day Nurseries Ltd | Health & social care | 2011 |
| Peppermint Gorilla Ltd | Hospitality | 2023 |
| Peppermint Pubs Limited | Hospitality | 2018 |
| Peppersproperties Limited | Real estate | 2025 |
| Peppo Xpress Ltd | Transport & logistics | 2023 |
| PER Acta Ltd | Real estate | 2025 |
| Peracto Projects Limited | Professional & scientific | 2013 |
| Perceball Ltd | Information & communication | 2023 |
| Perception Theatre Ltd | Arts & recreation | 2019 |
| Perch Films Limited | Information & communication | 2016 |
| Percussion Golf Limited | Manufacturing | 2018 |
| Peregrinate Ltd | Education | 2017 |
| Peregrine Connect Ltd | Transport & logistics | 2025 |
| Perfect 4HOME Solution Ltd | Administrative & support | 2025 |
| Perfect Blinds Limited | Manufacturing | 2012 |
| Perfect by Design Ltd | Wholesale & retail | 2024 |
| Perfect Cables Ltd | Construction | 2025 |
| Perfect Finish by Cambrian Ltd | Construction | 2017 |
| Perfect Imports and Design Limited | Manufacturing | 2014 |
| Perfect Living Limited | Real estate | 2016 |
| Perfect Living Residential Limited | Real estate | 2019 |
| Perfect Preservation Limited | Construction | 2012 |
| Perfect Residential Ltd | Real estate | 2021 |
| Perfect Sanitary Ware Ltd | Wholesale & retail | 2015 |
| Perfect Shades & Style Ltd | Manufacturing | 2014 |
| Perfect Spanish Ltd | Education | 2024 |
| Perfect Sparkles Ltd | Administrative & support | 2018 |
| Perfect Takeaway Ltd | Hospitality | 2024 |
| Perfectinglogistics Limited | Transport & logistics | 2025 |
| Perfectly SET Ltd | Manufacturing | 2018 |
| Perfectly YOU Ltd | Other services | 2023 |
| Perfecto L21 Ltd | Hospitality | 2026 |
| Performance LAB Consulting Limited | Other services | 2019 |
| Performance Masterbatches Limited | Manufacturing | 1973 |
| Performance Property Group Limited | Real estate | 2018 |
| Performer Nation Limited | Arts & recreation | 2015 |
| Performers Theatre School Limited | Education | 2012 |
| Performr Group Ltd | Information & communication | 2024 |
| Performunlimiteduk CIC | Arts & recreation | 2025 |
| Peri Peri City L4 Ltd | Hospitality | 2025 |
| Peri Peri Foods Ltd | Wholesale & retail | 2025 |
| Perimeter Building Limited | Construction | 2011 |
| Perio Courses Ltd | Education | 2024 |
| Peritus Steel Solutions Limited | Construction | 2026 |
| Perks of Reading CIC | Wholesale & retail | 2025 |
| Perpetual Time Ltd | Other services | 2012 |
| Perpetual Trader Ltd | Extraterritorial | 2021 |
| Perrelle Group Limited | Information & communication | 2025 |
| Perrers Properties Limited | Real estate | 1996 |
| Perriton Limited | Professional & scientific | 2014 |
| Perry Civils Limited | Construction | 2024 |
| Perry Contracting Group Limited | Financial services | 2026 |
| Perry Groundworks Limited | Construction | 2026 |
| Perry JS Ltd | Wholesale & retail | 2024 |
| Perry Renewables Limited | Construction | 2026 |
| Perryling Ltd | Hospitality | 2022 |
| Perrymere Limited | | 1988 |
| Persei Contracting Limited | Other services | 2018 |
| Pershing Holdings (UK) Limited | Financial services | 2003 |
| Pershing Limited | Financial services | 1986 |
| Pershing Nominees Limited | Professional & scientific | 1986 |
| Pershing Securities Limited | Financial services | 1990 |
| Personal Contract Cleaners Limited | Administrative & support | 2014 |
| Personal Intermediary Management Services Limited | Wholesale & retail | 1996 |
| Personal Pathway Homes Ltd | Health & social care | 2024 |
| Personal Skills Development Consultants International LLP | | 2015 |
| Personal Success | Education | 2011 |
| Personalised Property Management Limited | Real estate | 2013 |
| Personalized Pieces Ltd | Manufacturing | 2025 |
| Personalpropertymanagementestates Limited | Real estate | 2026 |
| Perspective Psychotherapy Limited | Other services | 2000 |
| Perspective Theatre Company CIC | Arts & recreation | 2021 |
| Pest Solutions (NW) Ltd | Administrative & support | 2009 |
| Pestoid Pest Control Limited | Administrative & support | 2025 |
| Pet Identity UK Limited | Information & communication | 2013 |
| Pet Lamps UK Limited | Wholesale & retail | 2019 |
| Pet Store 365 Limited | Wholesale & retail | 2025 |
| Pet-Tides Limited | Other services | 2026 |
| Petal + Palm Ltd | Manufacturing | 2023 |
| Petal Couture Ltd | Manufacturing | 2026 |