| Peter Nicholls - Photographer Ltd | Professional & scientific | 2014 |
| Peter the Piano and Friends Limited | Information & communication | 2020 |
| Peterborough Capital Advisory Ltd | Financial services | 2024 |
| Petranova Trading Ltd | Wholesale & retail | 2025 |
| Petrie Gough Limited | Wholesale & retail | 2006 |
| Petroleum Geo-Services (UK) Limited | Mining & quarrying | 1993 |
| Petrosir Ltd | Administrative & support | 2018 |
| Petsostep Ltd | Wholesale & retail | 2024 |
| Petty Char Management Limited | Households | 2024 |
| Pfam Limited | Real estate | 2026 |
| PG Recruitment Limited | Administrative & support | 2021 |
| PG Vending Limited | Extraterritorial | 2025 |
| Pgna Labs Ltd | Wholesale & retail | 2026 |
| Pgna Properties Ltd | Real estate | 2022 |
| PGS Exploration (UK) Limited | Mining & quarrying | 1994 |
| PGS Geophysical (Angola) Ltd. | Mining & quarrying | 1985 |
| PGS Pension Trustee Limited | Financial services | 1994 |
| PGS Seismic Services Limited | Transport & logistics | 2005 |
| PH GU9 Ltd | Construction | 2024 |
| Phalarope Limited | Financial services | 2014 |
| Pharmacare (Europe) Limited | Wholesale & retail | 2007 |
| Pharmx Consulting Partners Limited | Professional & scientific | 2023 |
| Phil Lord Creative Limited | Professional & scientific | 2013 |
| Philip Morris (Cash & Carry) Limited | Real estate | 1979 |
| Phinesse Concepts Limited | Households | 2026 |
| Phitbalance UK Limited | Arts & recreation | 2013 |
| Phoenix Park Design and Build Ltd | Construction | 2006 |
| Phoenix Kitchen WCC Ltd | Hospitality | 2021 |
| Phoenix Park Holdings Ltd | Construction | 2006 |
| Photonics Research Limited | Professional & scientific | 2017 |
| Photonics Technologies Limited | Manufacturing | 2011 |
| Piazzamore Limited | Real estate | 2003 |
| Pibob Consulting Ltd | Professional & scientific | 2021 |
| Pibob Homes Ltd | Construction | 2020 |
| Pibobgroup Ltd | Professional & scientific | 2019 |
| Piccolo Family Club Ltd | Arts & recreation | 2024 |
| Pichet Properties Ltd | Real estate | 2018 |
| Piconha Limited | Information & communication | 2026 |
| Picture Homes Limited | Real estate | 2021 |
| PII Continuum Limited | Information & communication | 2012 |
| Piiif Limited | Administrative & support | 2016 |
| Pilates Hub Weybridge Limited | Arts & recreation | 2020 |
| Pilates Works Studio Limited | Other services | 2010 |
| Pilatespluswellness London Ltd | Arts & recreation | 2014 |
| Pilbeam & Co. Ltd | Information & communication | 1993 |
| Pilbeam Manufacturing IT Services Ltd | Information & communication | 2009 |
| Pilita Limited | Extraterritorial | 2016 |
| Pine Court Residents Association Limited | Households | 1968 |
| Pinegate Investments Limited | Real estate | 2020 |
| Pinegate Ltd | Real estate | 2017 |
| Pinegrove Mortgages Limited | Financial services | 2012 |
| Pinelands (Weybridge) Estate Limited | Hospitality | 2001 |
| Pinevale Homes Ltd | Real estate | 2025 |
| Pink Fork Catering Limited | Hospitality | 2021 |
| Pinnacle Real Estate LLP | | 2008 |
| Pinnacle Roofcare Ltd | Construction | 2024 |
| Pinnacle SKI Limited | Administrative & support | 2018 |
| Pinpoint AD Tech Ltd | Professional & scientific | 2025 |
| PIP and Squeak Ltd | Information & communication | 2024 |
| Pirate Properties Limited | Real estate | 2022 |
| Pitch Associates Limited | Real estate | 2019 |
| Pitched Commodities Limited | Wholesale & retail | 2021 |
| Pitshanger Health and Fitness Limited | Arts & recreation | 2020 |
| PIXL8 Group Limited | Information & communication | 2001 |
| Pizzetta Limited | Hospitality | 2019 |
| PJN (Electronics and Security Systems) Limited | Wholesale & retail | 1985 |
| Placebrand Limited | Other services | 2019 |
| Planet Intelligent Technology Group Ltd | Information & communication | 2024 |
| Planet Intelligent Technology Limited | Information & communication | 1977 |
| Planspace Design Limited | Professional & scientific | 2017 |
| Planspace Limited | Professional & scientific | 2010 |
| Plantexpand Limited | Wholesale & retail | 1987 |
| Platine Technology Limited | Information & communication | 2016 |
| Platinum Mile Limited | Administrative & support | 2018 |
| Play Therapy Services Ltd | Other services | 2009 |
| Playful Threads Ltd | Extraterritorial | 2025 |
| Plexus Leadership Ltd | Professional & scientific | 2018 |
| Plum Recruitment Limited | Administrative & support | 1988 |
| Plum Talent Solutions Ltd | Administrative & support | 2025 |
| Plus 4 Audio Limited | Extraterritorial | 2003 |
| Plush Pet Services Limited | Other services | 2024 |
| PLUTE93 Limited | Information & communication | 2026 |
| Plutto Limited | Wholesale & retail | 2010 |
| PM Compliance Consulting Ltd | Professional & scientific | 2024 |
| PMF Property Management Ltd | Real estate | 2018 |
| PNB Consulting Services Limited | Professional & scientific | 2026 |
| PNS 2025 Limited | Wholesale & retail | 2025 |
| Pocket Anchor Ltd | Wholesale & retail | 2026 |
| Polestar Development Management Limited | Professional & scientific | 2018 |
| Polestar Venture Partners Limited | Administrative & support | 2019 |
| Poliform UK Limited | Wholesale & retail | 2001 |
| Pont Europe Limited | Professional & scientific | 2002 |
| Pontypwl Consulting Limited | Professional & scientific | 2018 |
| Pooches of Pitshanger Limited | Other services | 2025 |
| Pople Joinery Limited | Construction | 2025 |
| Portland Bunkers UK Limited | Professional & scientific | 2015 |
| Portland Eco Fuels UK Limited | Professional & scientific | 2018 |
| Portlane Ltd | Financial services | 2012 |
| Portmore Park Residents Association Limited | Households | 1976 |
| Portmore Park Road (Weybridge) Management Company Limited | Households | 1986 |