| Penthouse Life Limited | Real estate | 2022 |
| Pentreath Consulting Ltd | Financial services | 2008 |
| People Station Ltd | Administrative & support | 2023 |
| Perception Aviation Ltd | Information & communication | 2025 |
| Perera Family Estates LLP | | 2023 |
| Performance Cycling Studios Limited | Arts & recreation | 2018 |
| Performance Minded Ltd | Arts & recreation | 2018 |
| Performing Arts Theatre School Limited | Professional & scientific | 2012 |
| Performnow Ltd | Arts & recreation | 2026 |
| Pericon Limited | Professional & scientific | 2017 |
| Personal Consultancy Solutions Limited | Information & communication | 2007 |
| PES (Southern) Ltd | Administrative & support | 1999 |
| Pest Cemetery UK Limited | Administrative & support | 2024 |
| Petal Trading Ltd | Wholesale & retail | 2024 |
| Petch Project Management Ltd | Professional & scientific | 2017 |
| Peter Apps 001 Ltd | Financial services | 2026 |
| Peter Gething Limited | Real estate | 2016 |
| Peter R Williams Limited | Professional & scientific | 2006 |
| Petersenl Limited | Health & social care | 2014 |
| Petersham Investments Limited | Real estate | 1965 |
| Petite Learners Child Care Ltd | Health & social care | 2025 |
| Petpals (Mole Valley) Ltd | Other services | 2006 |
| Pettyfer Landscaping Limited | Administrative & support | 2020 |
| Petya&Ivona Ltd | Transport & logistics | 2017 |
| Pfuyc Business Consulting Ltd | Professional & scientific | 2025 |
| PGB Holdings Limited | Financial services | 2025 |
| PGW Property Group Limited | Real estate | 2025 |
| Phase Electrical Contractors Ltd | Construction | 2006 |
| PHD Mechanical Services Limited | Construction | 2007 |
| PHE 3 Limited | Information & communication | 2024 |
| Phelps Associates Ltd | Professional & scientific | 2012 |
| Phil Agunbiade Consulting Ltd | Other services | 2019 |
| Phil Lane Limited | Information & communication | 2023 |
| Phil U UP Ltd | Hospitality | 2024 |
| Philip Burley Limited | Administrative & support | 1983 |
| Philip Cook Music Ltd | Information & communication | 2014 |
| Phiner Limited | Real estate | 2016 |
| Phoenix Finance and Business Consultancy Limited | Professional & scientific | 2019 |
| Phoenix RE Limited | Professional & scientific | 2020 |
| Phorm Print Ltd | Manufacturing | 2026 |
| Photo-Me International Limited | Extraterritorial | 1954 |
| Photo-Me Limited | Administrative & support | 2016 |
| Photo-Me Trustee Company Limited | Extraterritorial | 2002 |
| Photoweb UK Ltd | Professional & scientific | 2012 |
| Phulashi UK Ltd | Real estate | 2026 |
| Phuturum Limited | Professional & scientific | 2025 |
| Phylo Ltd | Professional & scientific | 2019 |
| Physimed Limited | Health & social care | 2019 |
| Physiques by H Ltd | Arts & recreation | 2024 |
| Picnic Learning Ltd | Information & communication | 2021 |
| Picture Build Limited | Construction | 2025 |
| Piecuch Services Ltd | Other services | 2018 |
| Pied a Terre Inventories Ltd | Administrative & support | 2015 |
| Piff Investments Ltd | Real estate | 2026 |
| Pine House Property Management Ltd | Real estate | 2019 |
| Pine House the Park Ltd | Real estate | 2021 |
| Pineway Enterprises Limited | Real estate | 2002 |
| Pinewood Flats Management Company Limited | Hospitality | 2011 |
| Pink Fortress Estates Ltd | Real estate | 2017 |
| Pink Fortress Holdings Ltd | Financial services | 2017 |
| Pink Fortress Limited | Construction | 2007 |
| Pink Fortress Services Limited | Construction | 2017 |
| Pink Glitter Productions Limited | Information & communication | 2011 |
| Pink Procurement Limited | Professional & scientific | 2020 |
| Pinnacle Bespoke Joinery Limited | Manufacturing | 2023 |
| Pinnacle Design and Build Limited | Construction | 2019 |
| Pinnacle Territory Limited | Wholesale & retail | 2025 |
| Pinnington Interiors Limited | Professional & scientific | 2021 |
| Pipe Monkey Plumbing & Heating Limited | Construction | 2021 |
| Piper Thompson Limited | Professional & scientific | 2002 |
| Pips Ice Supplies Limited | Wholesale & retail | 2020 |
| Pitch Boutique Limited | Professional & scientific | 2015 |
| Pitch Development Hire Ltd | Arts & recreation | 2021 |
| Pitch Development Solutions Limited | Arts & recreation | 2009 |
| Pitchcraft Advisory Limited | Professional & scientific | 2024 |
| Pitts Car Park Limited | Real estate | 2022 |
| Pixel Digital Printing Limited | Manufacturing | 2025 |
| Pixel Global AV Limited | Professional & scientific | 2018 |
| Pizza PAL Ewell Ltd | Hospitality | 2024 |
| Pizzeria Roma Limited | Hospitality | 2025 |
| PJT Tech Ltd | Other services | 2020 |
| PKC Property Group Ltd | Real estate | 2024 |
| Placing Shadows Limited | Arts & recreation | 2011 |
| Planergy Group Ltd | Information & communication | 2021 |
| Plangold Limited | Real estate | 1998 |
| Planned Ascent Limited | Professional & scientific | 2014 |
| Plastic Pipes Conference Association | Administrative & support | 2002 |
| Plasticology Limited | Health & social care | 2012 |
| Platforma Technologies Limited | Information & communication | 2019 |
| Platinum Executive Cars Ltd | Transport & logistics | 2019 |
| Platinum Travel Recruitment Ltd | Administrative & support | 2012 |
| Play-Made Ltd | Professional & scientific | 2023 |
| Playful Property Limited | Real estate | 2022 |
| Playfully Ltd | Wholesale & retail | 2026 |
| Playsometoys UK Ltd | Wholesale & retail | 2021 |
| Playwise Learning Services Ltd | Education | 2024 |
| PLL Distributions Ltd | Wholesale & retail | 2026 |
| Plumbex Water Filtration Limited | Wholesale & retail | 2006 |
| Plumbing Matters (Surrey) Ltd | Construction | 2017 |
| Plylf Limited | Real estate | 2020 |