| Pearl Optical Limited | Health & social care | 2014 |
| Pears Consulting Ltd | Professional & scientific | 2019 |
| Pearton Tooling Company Limited | Manufacturing | 2006 |
| Peckham Garages Limited | | 1988 |
| Pedersen Homes Ltd | Real estate | 2020 |
| Pegasus Dawn Limited | Real estate | 2017 |
| Pegasus Global Tradelinks Limited | Wholesale & retail | 2007 |
| Pegasus Roofing Limited | Construction | 2001 |
| Pegaxis Holding Co Limited | Financial services | 2026 |
| Pegaxis Limited | Transport & logistics | 2000 |
| Pelgrow Limited | Wholesale & retail | 1988 |
| Pendulum Technology Limited | Information & communication | 1998 |
| Peniel Groups International Limited | Real estate | 2017 |
| Peninsula Malaysian Cuisine (UK) Limited | Hospitality | 2023 |
| Penn Properties Limited | Real estate | 1998 |
| Pentagram Creative Ltd | Professional & scientific | 2011 |
| Penumbra Consulting Ltd | Professional & scientific | 2004 |
| Peoplesafe Limited | Professional & scientific | 2019 |
| Peregrins Management Company Limited | Professional & scientific | 2004 |
| Perennial Trading Limited | Wholesale & retail | 1966 |
| Perfect Drives Limited | Construction | 2022 |
| Perfect Scaffolding Limited | Construction | 1975 |
| Perfect Smile Wokingham Limited | Health & social care | 2018 |
| Performance and Wellness Consultancy Ltd | Professional & scientific | 2021 |
| Performance Plus Marketing Ltd | Professional & scientific | 2025 |
| Performance Track Limited | Extraterritorial | 2000 |
| Period and Country Houses Limited | Construction | 1965 |
| Perry Barnes & Greg Watts Architects Limited | Professional & scientific | 2003 |
| Personalised Kids Stuff Limited | Wholesale & retail | 2019 |
| Pet Pals Limited | Wholesale & retail | 1994 |
| Pet Pals of Epsom Limited | Real estate | 1969 |
| Pet Plan Limited | Financial services | 1976 |
| Peter Heath Electrical Limited | Wholesale & retail | 1985 |
| Peter Netley Limited | Professional & scientific | 2006 |
| Peter Newman Restorer Limited | Real estate | 1979 |
| Peter Sheldon Limited | Wholesale & retail | 1982 |
| Peter Spindler Associates LLP | | 2015 |
| Peter Wildash Limited | Real estate | 1948 |
| Peter Woods (London) Limited | Real estate | 1996 |
| Petexco Limited | Professional & scientific | 1999 |
| Petra Rossa Limited | Wholesale & retail | 2004 |
| Petramode Limited | Information & communication | 1986 |
| Pets Quest Limited | Wholesale & retail | 2006 |
| PGL Rcpl Limited | Education | 2010 |
| Pglos (Enterprises) Limited | Wholesale & retail | 2007 |
| PGR Business Limited | Administrative & support | 2006 |
| PHI Networks Limited | Information & communication | 2006 |
| Philip Munk Limited | Professional & scientific | 2007 |
| Phillips Fire Protection Services Limited | Manufacturing | 2007 |
| Philp.G Ltd | Professional & scientific | 2005 |
| Phoenix Network Services Limited | Information & communication | 1994 |
| Phoenix Records Limited | Arts & recreation | 1991 |
| Phoenix Travel UK Ltd | Transport & logistics | 2007 |
| Phone Box Ltd | Other services | 2018 |
| Photays & Associates Limited | Other services | 2007 |
| Photocare | | 1990 |
| PHP Logistics Ltd | Administrative & support | 2017 |
| Phulmaya Sherpa Ltd | Health & social care | 2020 |
| Phyllis Tuckwell Memorial Hospice Limited | Health & social care | 1972 |
| Picamar Limited | Information & communication | 1998 |
| Picture Frame Warehouse & General Supplier Ltd | Construction | 2017 |
| Pigs CAN FLY Limited | Information & communication | 2004 |
| Pimp My Hair Limited | Other services | 2013 |
| Pinchcliffe Engineering Limited | Professional & scientific | 2007 |
| Pinefire Limited | Professional & scientific | 2006 |
| Pinehurst Care Home Ltd | Health & social care | 2004 |
| Pinehurst Properties (Godalming) Limited | Real estate | 1963 |
| Pinewood Cattery Limited | Agriculture & fishing | 2007 |
| Pinnacle Computing Limited | Professional & scientific | 1991 |
| Pinpoipro Limited | Administrative & support | 2015 |
| Pioneer Automobile Services Ltd | Wholesale & retail | 1997 |
| PIP Graphics Limited | Information & communication | 1998 |
| Pipistrel Software Limited | Information & communication | 1991 |
| Piriyanga Audiology Ltd | Health & social care | 2022 |
| Pixeldom Ltd | Information & communication | 2007 |
| Pixknoll Limited | | 1975 |
| Pizza Walton Ltd | Hospitality | 2026 |
| PJM Construction Limited | Construction | 2001 |
| Place 2B Limited | Administrative & support | 2006 |
| Planet Computer Solutions Limited | Information & communication | 1996 |
| Planing Performance Limited | Professional & scientific | 1984 |
| Planside Residents Management Limited | Real estate | 1986 |
| Plant Displays Plus Limited | Administrative & support | 2011 |
| Plantain Limited | Information & communication | 2003 |
| Planteria (Henham) Limited | Extraterritorial | 2011 |
| Planteria (Witley) Limited | Extraterritorial | 2011 |
| Plascoat Holdings Limited | Professional & scientific | 1968 |
| Plascoat International Limited | Professional & scientific | 1964 |
| Plascoat Pension Trustees Limited | Professional & scientific | 1983 |
| Plascoat Systems Limited | Manufacturing | 1952 |
| Platinum Property (UK) Limited | Real estate | 2005 |
| Playball Reigate Limited | Education | 2021 |
| Playstow Furnishing Limited | Wholesale & retail | 2007 |
| Plaza Cuisine Limited | | 1986 |
| Plot 27 Kingswood Court Limited Partnership | | 1991 |
| Plots 7 and 8 Dovehouse Park Management Ltd | Households | 2022 |
| Plough Green Pharmacy Limited | Wholesale & retail | 1961 |
| Plowden Investments Limited | Construction | 1961 |
| Plum Jobs Limited | Administrative & support | 1976 |
| Plumbers Inn Limited | | 1981 |