| Pelumico Ltd | Extraterritorial | 2018 |
| Pembroke Seafront Residencies Limited | Professional & scientific | 2018 |
| Pen-Y-Garth Care Homes Limited | Health & social care | 1993 |
| Penbow Ltd | Construction | 2019 |
| Pencil Labs Limited | Information & communication | 2025 |
| Pendleton Medical Services Limited | Health & social care | 2021 |
| Pendleton Property & Maintenance Ltd | Real estate | 2020 |
| Pendleton Together Holdings Limited | Extraterritorial | 2013 |
| Pendleton Together Operating Limited | Hospitality | 2013 |
| Pendleville II Ltd | Extraterritorial | 2021 |
| Pendleville Ltd | Extraterritorial | 2007 |
| Pendragon International Consulting Ltd | Professional & scientific | 2026 |
| Penguine E-Publications Ltd | Information & communication | 2022 |
| Penny Street Music Limited | Information & communication | 1998 |
| PENPEN360 Company Limited | Real estate | 2022 |
| People's Barber Shop Ltd | Other services | 2018 |
| Peoplecentra Ltd | Information & communication | 2025 |
| Peppermints Group Ltd | Hospitality | 2024 |
| Peppleton Ltd | Extraterritorial | 2013 |
| Perfect Autos & MOT Ltd | Wholesale & retail | 2024 |
| Perfect Fit Property Development Ltd | Real estate | 2025 |
| Perfect Packaging Limited | Other services | 2018 |
| Perfect Place Realty Ltd | Real estate | 2023 |
| Perfecto Pizza Ltd | Hospitality | 2024 |
| Perfecto Pizza Salford Ltd | Hospitality | 2026 |
| Performante Activewear Ltd | Wholesale & retail | 2025 |
| Perimile Investments Ltd | Real estate | 2025 |
| Perivale Estates Ltd | Real estate | 2024 |
| Perjay Estates 2 Limited | Extraterritorial | 2017 |
| Perjay Estates Limited | Extraterritorial | 2015 |
| Perkins Plastering Ltd | Construction | 2025 |
| Perl Estates Limited | Real estate | 2014 |
| Perl Real Estates Ltd | Real estate | 2026 |
| Perleco Ltd | Hospitality | 2022 |
| Permaclinicandco Ltd | Other services | 2025 |
| Perry Barr Birmingham SPV Limited | Real estate | 2025 |
| Personal Development Services Ltd | Education | 2019 |
| Personality Ltd | Wholesale & retail | 2019 |
| Personex Limited | Extraterritorial | 2021 |
| Pestop Ltd | Wholesale & retail | 2015 |
| Peter Black Holdings Limited | Professional & scientific | 1971 |
| Peter Black International Limited | Professional & scientific | 2006 |
| Peter Black Overseas Holdings Limited | Professional & scientific | 2002 |
| Peter Black Property Limited | Real estate | 1972 |
| Peter Curl Limited | Real estate | 2026 |
| Peter PAN Toys Ltd | Wholesale & retail | 2010 |
| Peterlee Estates Ltd | Other services | 2018 |
| Petloveshop Ltd | Wholesale & retail | 2022 |
| Petroil Consulting Ltd | Administrative & support | 1989 |
| Petros Management LLP | | 2009 |
| Pets R Family Ltd | Administrative & support | 2025 |
| Pettengell Wealth Management LLP | | 2011 |
| PGW Acquisitions Limited | Real estate | 2023 |
| PGW Group Limited | Health & social care | 2023 |
| Phaneros Care Ltd | Health & social care | 2026 |
| Pheel Limited | Information & communication | 2022 |
| Phemzy Studios Ltd | Information & communication | 2025 |
| Phence Ltd | Administrative & support | 2026 |
| Philip Caroline Property Group Ltd | Real estate | 2022 |
| Phillips & Cohen Associates International, Ltd | Financial services | 2012 |
| Philly FRY Ltd | Hospitality | 2026 |
| Phixion Clothing Limited | Wholesale & retail | 2023 |
| Phoenicia Hotel Company Limited | Hospitality | 1935 |
| Phoenix Court Apartments Ltd | Real estate | 2017 |
| Phoenix Secure FM Ltd | Professional & scientific | 2025 |
| Phoenix Talent Academy Limited | Education | 2024 |
| Photo & Smile Ltd | Professional & scientific | 2025 |
| PHP Media Limited | Professional & scientific | 2021 |
| PHR Investment Properties Limited | Real estate | 2024 |
| PI Advisory Limited | Information & communication | 2025 |
| Piall Ltd | Wholesale & retail | 2026 |
| Piapo Music Limited | Education | 2026 |
| Piccolo Studio Ltd | Information & communication | 2025 |
| Pick a Trip Ltd | Administrative & support | 2025 |
| Pickles Creative Ltd | Professional & scientific | 2024 |
| Picture Pride Ltd | Professional & scientific | 2020 |
| Pidhc Limited | Professional & scientific | 2014 |
| PIG & Bison Ltd | Wholesale & retail | 2012 |
| Pigtails Silicone Babies Ltd | Manufacturing | 2022 |
| PIN UPS (Boothstown) Limited | Other services | 2014 |
| Pinas Yikras Ltd | Other services | 2022 |
| Pinco Properties Ltd | Real estate | 2022 |
| Pincoayr Ltd | Real estate | 2025 |
| Pinecone Health Contracting Ltd | Health & social care | 2025 |
| Pineroots Ltd | Professional & scientific | 2018 |
| Pinestone Estates Ltd | Professional & scientific | 2003 |
| Pinestone Limited | Health & social care | 1994 |
| Pineweb Ltd | Extraterritorial | 2002 |
| Pini Estates Limited | Real estate | 2020 |
| Pink Brick Ltd | Real estate | 2019 |
| Pink Grapefruit UK Ltd | Wholesale & retail | 2024 |
| Pink Rhino Limited | Information & communication | 2015 |
| Pinnacle Assets Group Limited | Financial services | 2026 |
| Pinnacle Education and Training Ltd | Education | 2023 |
| Pinnacle FR Limited | Other services | 2025 |
| Pinnexa Ltd | Professional & scientific | 2025 |
| Pinos BBQ Burger Ltd | Hospitality | 2025 |
| Pion Investment Ltd | Financial services | 2025 |
| Pioneer Investment Properties Ltd | Real estate | 2026 |
| Pioneer Mill Coordinates Limited | Energy | 2016 |