| Pavilion Copywriting Limited | Professional & scientific | 2016 |
| Pavilion Decorations Limited | Construction | 2011 |
| Pavilion Properties Limited | Real estate | 2009 |
| Pavilion Property Assets Ltd | Financial services | 1999 |
| Pavilion Reach Limited | Construction | 2012 |
| Paxton Hall Care Ltd | Health & social care | 1986 |
| Payne Vigour Ltd. | Manufacturing | 2018 |
| Payspot Limited | Manufacturing | 2009 |
| PB Construct Limited | Construction | 2023 |
| PB Cosmetic Surgery Ltd | Health & social care | 2012 |
| PB Skin Health LLP | | 2024 |
| PC Dental Limited | Health & social care | 2023 |
| Pcbang Limited | Information & communication | 2018 |
| PCD Media Limited | Professional & scientific | 2016 |
| PCI (Hove) Ltd | Real estate | 2012 |
| Pcndennien Consulting Limited | Professional & scientific | 2014 |
| Pcro Limited | Health & social care | 2026 |
| PCS Ventures Limited | Administrative & support | 2016 |
| PDR Masters Ltd | Wholesale & retail | 2020 |
| Peace in Fashion Ltd | Wholesale & retail | 2020 |
| Peaceangel Properties Limited | Households | 1997 |
| Peachy Media Ltd | Professional & scientific | 2024 |
| Pear Tree Freehold Limited | Households | 2014 |
| Pearl Developments Brighton LLP | | 2008 |
| Pearl Hill Ltd | Wholesale & retail | 2022 |
| Pearson White Properties Limited | Construction | 2003 |
| Pebble Co Estates Limited | Real estate | 2024 |
| Pebble Stone Rock Ltd | Administrative & support | 2023 |
| Pebbles Productions Limited | Information & communication | 2008 |
| Pebblesbeach Ltd | Hospitality | 2024 |
| Peculiar Residence Ltd | Real estate | 2024 |
| Peermark Limited | Real estate | 1998 |
| Peezee Limited | Information & communication | 2008 |
| Pelicano Coffee Roasters Ltd | Manufacturing | 2024 |
| Pell Property Group Ltd | Real estate | 2021 |
| Pembroke & Nash Installations Ltd | Construction | 2015 |
| Pembroke BAH Ltd | Financial services | 2024 |
| Pembroke Partnership Limited | Education | 2017 |
| Pembroke Productions Limited | Arts & recreation | 2023 |
| Penchi Ltd | Information & communication | 2019 |
| Pendulum Training Limited | Administrative & support | 2020 |
| Penguin Training Ltd | Education | 2022 |
| Penny Blake Associates Ltd | Professional & scientific | 2007 |
| Penny Enterprises Limited | Real estate | 1984 |
| Penzance House RTM Company Limited | Real estate | 2024 |
| People & Place Group Ltd | Administrative & support | 2026 |
| People & Projects Work Ltd | Administrative & support | 2025 |
| People AID Ltd | Other services | 2012 |
| People Tree Research Associates Ltd | Professional & scientific | 2010 |
| Peoples Captain Ltd | Manufacturing | 2020 |
| Pepele Ltd | Professional & scientific | 2025 |
| Pepland Limited | Real estate | 2012 |
| Pepper Close Management Company Limited | Households | 2018 |
| Pepper FOX Limited | Real estate | 2008 |
| Pepper FOX Management Limited | Real estate | 2002 |
| Pepper FOX Services Limited | Real estate | 2020 |
| Pepper Phillips Limited | Real estate | 2020 |
| PER Medical Limited | Health & social care | 2023 |
| PER4MANCE Insight Ltd | Administrative & support | 2012 |
| Perfect Polys Ltd | Arts & recreation | 2018 |
| Performance Canteen Ltd | Professional & scientific | 2026 |
| Perio Mann Ltd | Health & social care | 2022 |
| Perioworks Limited | Health & social care | 2019 |
| Perrymount Holdings Ltd | Real estate | 2022 |
| Persepolis Cellars Ltd | Wholesale & retail | 2026 |
| Perseus Estates Ltd | Extraterritorial | 2015 |
| Persian Deli Food Ltd | Administrative & support | 2019 |
| Persian Ventures Limited | Real estate | 2021 |
| Perspec TV Limited | Information & communication | 1999 |
| Perspicacity Limited | Professional & scientific | 2008 |
| Pesky Productions Limited | Arts & recreation | 2005 |
| Peter Lale Ltd | Other services | 2020 |
| Peter Mchugh Services Limited | Administrative & support | 2016 |
| Peter Ratcliff Dendrochronology Ltd | Professional & scientific | 2015 |
| Peter Susan Limited | Health & social care | 2011 |
| Petinfoclub.Com Limited | Other services | 2010 |
| Petrus Investments Group Limited | Real estate | 2020 |
| Petrus Investments LLP | | 2021 |
| Petrusair Ltd | Administrative & support | 2012 |
| Pettio Ltd | Information & communication | 2026 |
| PFA Logistics Private Ltd | Transport & logistics | 2026 |
| Pfeiffers Garage Limited | Wholesale & retail | 2014 |
| PFH Estates Limited | Real estate | 2021 |
| Ph&Hh Consultancy Limited | Professional & scientific | 2021 |
| Phantom Sports Group Ltd | Professional & scientific | 2017 |
| Pharma BIO Solutions Ltd | Information & communication | 2009 |
| Pharpro Limited | Information & communication | 2023 |
| Philip Evans Family Funeral Services Ltd | Other services | 2021 |
| Philip Evans Funeral Services Limited | Other services | 2006 |
| Philip Surey Ltd | Professional & scientific | 2015 |
| Phisica Ltd | Arts & recreation | 2020 |
| Phix Plumbing & Heating Limited | Construction | 2021 |
| Phoenix DAO Ltd | Wholesale & retail | 2022 |
| Phoenix Dent Limited | Health & social care | 2025 |
| Photobot.Co Ltd | Professional & scientific | 2012 |
| Photoworks | Arts & recreation | 1995 |
| PHW Investments Ltd | Real estate | 2023 |
| Phynixai Ltd | Professional & scientific | 2021 |
| Physi Holdings Limited | Financial services | 2025 |
| Physicalgeo Energy Limited | Professional & scientific | 2023 |