| Paul Southon Limited | Construction | 2012 |
| Paul Vosper Limited | Professional & scientific | 1984 |
| Pavone & Partners Ltd | Professional & scientific | 2020 |
| Paxmin Limited | Information & communication | 2014 |
| Paydough Ltd | Information & communication | 2021 |
| Paye Accounting & Management Solutions Limited | Administrative & support | 2022 |
| Paye Homes Limited | Construction | 2006 |
| Paysgate Ltd | Administrative & support | 2023 |
| PB UK Consultancy Services Ltd | Information & communication | 2025 |
| PBG Construction Limited | Construction | 2015 |
| PBG Holdings Limited | Real estate | 2019 |
| Pblc Partners Ltd | Households | 2019 |
| PBR (Ringwood) Limited | Construction | 2012 |
| PC Matters Limited | Information & communication | 2007 |
| PC Properties 62 Limited | Construction | 2016 |
| PC Southern Properties Ltd | Real estate | 2020 |
| PCM Law LLP | | 2009 |
| PCP Estates Ltd | Construction | 2026 |
| Pdauto Refinishers Limited | Wholesale & retail | 2006 |
| PE Support Limited | Professional & scientific | 2019 |
| PEA Green Property Services Ltd | Professional & scientific | 2015 |
| Peace Marsh Renewables Limited | Professional & scientific | 2009 |
| Peak Fitness (Kent) Limited | Arts & recreation | 2004 |
| Peak Padel Club Ltd | Wholesale & retail | 2024 |
| Pearcy Properties Limited | Real estate | 2025 |
| Pearl UK Investments Limited | Real estate | 2023 |
| Pearson Carpentry Limited | Construction | 1999 |
| Peas in a POD Breastfeeding Ltd | Health & social care | 2021 |
| Peas in a POD Breastfeeding Tongue TIE Ltd | Health & social care | 2023 |
| Peerglow Developments (2013) Ltd | Real estate | 2013 |
| Pegasus Capital LLP | | 2010 |
| Pegasus Holidays Limited | Hospitality | 2022 |
| Pelagial Blue Consulting Ltd | Information & communication | 2024 |
| Pellguard Limited | Real estate | 1990 |
| Pembroke Property Partners Ltd | Real estate | 2026 |
| Penaluna Limited | Wholesale & retail | 2026 |
| Pencilhead Limited | Real estate | 1987 |
| Penguin in the Room Ltd | Professional & scientific | 2021 |
| Pennard Practice Limited | Professional & scientific | 2002 |
| Penned Ltd | Wholesale & retail | 2020 |
| Penodel Medical Ltd | Health & social care | 2026 |
| Penrose Analytics Limited | Information & communication | 2018 |
| Pensdown Limited | Construction | 1990 |
| Penshurst Developments Ltd | Construction | 2021 |
| Penshurst Property Services Ltd | Real estate | 2019 |
| Pentacare Services Ltd | Health & social care | 2020 |
| People Direct Recruitment Agency Limited | Administrative & support | 2004 |
| People Element Consulting Limited | Professional & scientific | 2023 |
| Pepper Learning Solutions Limited | Education | 2016 |
| Percula Software Limited | Information & communication | 2010 |
| Perfectly Imperfect ME Coaching Ltd | Health & social care | 2025 |
| Perky Property Solutions Ltd | Real estate | 2017 |
| Persomi Limited | Information & communication | 2015 |
| Personal Assistant Solutions Limited | Public administration | 2024 |
| Persoon (UK) Limited | Wholesale & retail | 1985 |
| Perth (UK) Limited | Administrative & support | 1996 |
| Pestcontrolbromley Ltd | Construction | 2025 |
| Pestiq Ltd | Information & communication | 2026 |
| Pet Pendant Ltd | Wholesale & retail | 2025 |
| Pet Pharma Holdings Ltd | Professional & scientific | 2023 |
| Pet Pharmceuticals Ltd | Professional & scientific | 2019 |
| Peter Cullum Commercial Properties Limited | Real estate | 2024 |
| Peter Grace Limited | Construction | 2026 |
| Peter Howard Consultancy Ltd | Professional & scientific | 2012 |
| Peter Lewis Limited | Manufacturing | 1970 |
| Peters & Zabransky (U.K.) Limited | Information & communication | 1979 |
| Petleys Investments Limited | Financial services | 2019 |
| Pettings Court Holdings Ltd | Agriculture & fishing | 2022 |
| Petts Wood Gardens Holdings Ltd | Real estate | 2021 |
| Petts Wood Gardens Ltd | Administrative & support | 2019 |
| Petts Wood Property Investments Limited | Real estate | 2016 |
| PF04TAX Ltd | Extraterritorial | 2020 |
| PFC Technical Services Limited | Professional & scientific | 2010 |
| Pharm-Assist (Regulatory Services) Limited | Manufacturing | 2005 |
| PHASE4 Digitalworks Ltd | Information & communication | 2023 |
| Phatduck Services Limited | Professional & scientific | 2013 |
| Pheida Development Limited | Professional & scientific | 2024 |
| Phenoma Limited | Administrative & support | 1999 |
| Philippa Robson Ltd | Professional & scientific | 2025 |
| Phillip Phillips & Co.Limited | Professional & scientific | 1907 |
| Philpots Parking Ltd | Other services | 2013 |
| Phoenix Communication Management Limited | Professional & scientific | 2023 |
| Phoenix Property Development Co. Ltd. | Professional & scientific | 1998 |
| PHS Advisory Limited | Financial services | 2025 |
| Physio Baby Ltd | Health & social care | 2014 |
| Piano Club Ltd | Information & communication | 2018 |
| Pickle & Button Productions Ltd | Other services | 2019 |
| Pickled Panda Ltd | Information & communication | 2026 |
| Pickled South Ltd | Professional & scientific | 2019 |
| Pickling Press Ltd | Information & communication | 2018 |
| Pierce & Groves Limited | Health & social care | 2023 |
| Pieter Emilius Pieters Ltd | Extraterritorial | 2024 |
| Pigeon East of England Property Limited Partnership | | 2009 |
| Pilates in Sevenoaks Limited | Arts & recreation | 2016 |
| Pilgrim Fire Solutions Ltd | Construction | 2024 |
| Pilgrims Oast Management Company Limited | Real estate | 2002 |
| Pillow Lava Ltd | Real estate | 2022 |
| Pillow T Ltd | Manufacturing | 2023 |
| Pimboline Services Ltd | Real estate | 2025 |
| PIN Sharp Productions Limited | Information & communication | 2002 |