| Pari's Skin Ltd | Other services | 2024 |
| Paris (UK) Limited | Other services | 2004 |
| Park Grove Design Ltd | Professional & scientific | 2025 |
| Park Grove Renovation and Design Limited | Professional & scientific | 1993 |
| Park Heights Management Company Limited | Households | 2006 |
| Park Hill Projects Limited | Construction | 2016 |
| Park Manor Freehold Limited | Households | 2013 |
| Park Road V111 Freeholders Limited | Households | 2014 |
| Park View Cafe Limited | Hospitality | 2020 |
| Park Way (Contractors) Ltd | Construction | 1980 |
| Parkgate (Sterry Drive) Residents Management Company Limited | Households | 1999 |
| Parkside Cars (Surrey) Ltd | Transport & logistics | 2018 |
| Parkside Property Services Limited | Real estate | 1993 |
| Parlay Investments Ltd | Real estate | 2018 |
| Parousia (Holdings) Limited | Financial services | 2025 |
| Pars Engineers Ltd | Construction | 2018 |
| Parsillus Group Ltd | Financial services | 2023 |
| Parsley Developments Limited | Real estate | 2004 |
| Parsons Mead Management Company Limited | Households | 2010 |
| Partotel Ltd | Hospitality | 2023 |
| Party Wall Studio Limited | Professional & scientific | 2020 |
| Parv Consultancy Limited | Education | 2025 |
| Parxton Solutions Limited | Information & communication | 2008 |
| Pascal Canelle Ltd | Professional & scientific | 2015 |
| Paslow Farm SPV Limited | Construction | 2026 |
| Passing the Parcel Ltd | Arts & recreation | 2026 |
| Pastry Palace Ltd | Manufacturing | 2020 |
| Pathway Financial Planning Limited | Professional & scientific | 2017 |
| Paton Industries Limited | Administrative & support | 2009 |
| Patwood Management Company (Sutton) Limited | Real estate | 1971 |
| Paul Charles Mortgage and Financial Services Limited | Financial services | 2008 |
| Paul Daley Consultancy Limited | Professional & scientific | 2012 |
| Paul DB Transition Coaching Ltd | Administrative & support | 2021 |
| Paul Greenfield Limited | Extraterritorial | 2023 |
| Paul K Ssegawa Limited | Health & social care | 2016 |
| Paul Rivett Limited | Construction | 1999 |
| Paul Tibbles Lighting Limited | Construction | 2010 |
| Paula Campion Consultancy Limited | Professional & scientific | 2013 |
| PAV Ductwork Ltd | Construction | 2016 |
| Pavliv Solution Ltd | Information & communication | 2025 |
| PAW Genius Ltd | Wholesale & retail | 2025 |
| Pawgeous Pooches Ltd | Other services | 2014 |
| Pawprints Crematorium Limited | Other services | 2025 |
| Pawprints Vetcare Limited | Professional & scientific | 2024 |
| Pawtopia Pet Services Ltd | Other services | 2026 |
| PAX Core Limited | Wholesale & retail | 2011 |
| PAX Identity Limited | Real estate | 2019 |
| Paxton Design and Management Limited | Professional & scientific | 2012 |
| PAY PER Click Harrison Ltd | Professional & scientific | 2022 |
| Paya 399 Lotus Ltd | Hospitality | 2024 |
| Paya Black Panda 2 Ltd | Hospitality | 2026 |
| Payrise Limited | Administrative & support | 2016 |
| PC Rescue Squad Ltd | Information & communication | 2006 |
| PCA Heritage Limited | Administrative & support | 2016 |
| PCM Enterprises Limited | Real estate | 2022 |
| PCS Estates Limited | Real estate | 2023 |
| PD Access Flooring Limited | Construction | 2010 |
| PD Contractors Specialist Ltd | Construction | 2014 |
| PD Vehicle Services Limited | Wholesale & retail | 2011 |
| PD Vehicles Ltd | Wholesale & retail | 2021 |
| PD View Limited | Construction | 2022 |
| PDK Electrical Limited | Construction | 2003 |
| PDQ Bookkeepers Ltd | Professional & scientific | 2026 |
| Pdsteward Engineering Limited | Arts & recreation | 2022 |
| PEA Corporate Services Limited | Professional & scientific | 2014 |
| PEA Events Management Limited | Administrative & support | 2014 |
| PEA POD Investments Limited | Information & communication | 2023 |
| Peace Building Solutions Ltd | Public administration | 2016 |
| Peachtree Solutions Limited | Real estate | 2015 |
| Peacock Homes Limited | Financial services | 1968 |
| Peacock Housing Kenilworth Limited | Real estate | 2025 |
| Peak Invest Ltd | Real estate | 2021 |
| Peakmark Ltd | Information & communication | 2024 |
| Pear Projects Limited | Information & communication | 2008 |
| Pearson Fire Engineering Ltd | Construction | 2011 |
| Pearsons Solicitors Limited | Administrative & support | 2009 |
| Pebble Beach Systems Group PLC | Professional & scientific | 2000 |
| Pebble Beach Systems Ltd | Information & communication | 2000 |
| Pebble Beach Systems R&D Ltd | Information & communication | 2019 |
| Pebworth Management Company Limited | Households | 1981 |
| Peckers Properties and Solutions Ltd | Real estate | 2023 |
| Peerland Homes Limited | Construction | 2007 |
| Pegasus Classic Engineering Ltd | Professional & scientific | 2021 |
| Pegasus Peptides Ltd | Wholesale & retail | 2026 |
| Peitho AI Limited | Information & communication | 2026 |
| Pellevo Limited | Manufacturing | 2025 |
| Pemcas Limited | Administrative & support | 2021 |
| Penang Properties Limited | Real estate | 2023 |
| Penda Consulting and Development Ltd | Professional & scientific | 2024 |
| Penguin and Daemon Limited | Information & communication | 2014 |
| Penn Contracting Limited | Construction | 1992 |
| Penrose Building & Landscape Services Ltd | Construction | 2025 |
| Penta Consulting Group Limited | Financial services | 2020 |
| Penta Consulting International Limited | Financial services | 2026 |
| Penta Consulting Limited | Information & communication | 1998 |
| Penta Consulting Middle East Limited | Information & communication | 2019 |
| Penta Payroll Limited | Information & communication | 2019 |
| Penta Services Ltd | Information & communication | 2019 |
| Penta Technology Limited | Information & communication | 2016 |
| Penta UK Holdings Ltd | Real estate | 2023 |