| Peter Reid Mortgage Solutions Ltd | Financial services | 2014 |
| Peter Rinn Holdings Limited | Construction | 2018 |
| Peter Rolt Associates Limited | Professional & scientific | 2007 |
| Peter Rose Consulting Ltd | Professional & scientific | 2020 |
| Peter Scott Consulting Ltd | Professional & scientific | 2011 |
| Peter's Fish Limited | Hospitality | 2025 |
| Petergate Management Limited | Households | 2005 |
| Petersen Associates Limited | Real estate | 2010 |
| Peterson Enterprises Limited | Wholesale & retail | 2023 |
| Pethub Groom Rooms,Chew Stoke Ltd | Other services | 2024 |
| Petite Hive Ltd | Wholesale & retail | 2026 |
| Petmag Limited | Health & social care | 2024 |
| Petprescription Limited | Extraterritorial | 2006 |
| Petra Bristol Ltd | Hospitality | 2024 |
| Petra Carola Ltd | Financial services | 2026 |
| Petray Industries Limited | Administrative & support | 2007 |
| Petrichor Films Ltd | Information & communication | 2025 |
| Petrinaafrihair Limited | Other services | 2024 |
| Petro-Marine Solutions Limited | Professional & scientific | 2006 |
| Petroleum Trading Commerce LP | | 2017 |
| Pets Perfect Company Ltd | Wholesale & retail | 2012 |
| Petsco 2 Limited | Extraterritorial | 2017 |
| Petsco Limited | Extraterritorial | 1998 |
| Pexlz Limited | Wholesale & retail | 2024 |
| Peyak Limited | Hospitality | 2018 |
| PF Performance Ltd | Arts & recreation | 2024 |
| Pfdg Ltd | Construction | 2025 |
| PFI Investments Limited | Professional & scientific | 2004 |
| PG Brickwork and Landscapes Ltd | Construction | 2022 |
| PG Cadogan Ltd | Construction | 2011 |
| PG Carriageworks LLP | | 2017 |
| PG Construction Management (ST Catherine's) Limited | Real estate | 2022 |
| PG Construction Management (Stoodley Knowle) Limited | Construction | 2021 |
| PG Construction Management Holdings Limited | Financial services | 2020 |
| PG Crown UK Limited | Professional & scientific | 2011 |
| PG Enterprises Limited | Real estate | 2000 |
| PG Gibbsco Ltd | Construction | 2019 |
| PG Instruments (Europe) Ltd | Extraterritorial | 2016 |
| PG Lettings Ltd | Real estate | 2011 |
| PG Lewins Ltd | Construction | 2013 |
| PG Newsagents Ltd | Wholesale & retail | 2017 |
| PG Personal Tax Ltd | Professional & scientific | 2022 |
| PG Plant Services Ltd | Manufacturing | 2024 |
| PG Scaffolding Ltd | Construction | 2019 |
| Pgmk Employees Trustee Limited | Extraterritorial | 2020 |
| Pgmk Limited | Wholesale & retail | 2006 |
| PGR Management Services Limited | Professional & scientific | 2026 |
| PGS Chauffeurs Ltd | Transport & logistics | 2023 |
| PGS Developments Limited | Real estate | 2011 |
| PGS Garden Services Ltd | Administrative & support | 2015 |
| PH Accountancy & Management Ltd | Professional & scientific | 2018 |
| PH Career Services Limited | Administrative & support | 2001 |
| PH Communication Limited | Administrative & support | 2004 |
| PH Events & Hospitality Ltd | Hospitality | 2025 |
| PH Waste Management & Recycling Limited | Water & waste | 2005 |
| Ph.O Developments Limited | Construction | 2020 |
| Phantom SIX Limited | Professional & scientific | 2012 |
| Pharma Device Limited | Financial services | 2011 |
| Pharma Medico Limited | Wholesale & retail | 2013 |
| Pharma Medico Sales Limited | Extraterritorial | 2003 |
| Pharma Medico UK Limited | Financial services | 1999 |
| Pharma Optimum Ltd | Wholesale & retail | 2021 |
| Pharmaplus Holdings Ltd | Information & communication | 2025 |
| Pharmasaphy Ltd | Professional & scientific | 2021 |
| Pharmedics Ltd | Wholesale & retail | 2019 |
| Pharmoptics Ltd | Wholesale & retail | 2012 |
| Phase 3 Clark Drive 2 LGV Management Company Limited | Households | 2021 |
| Phase 3 Clark Drive LGV Management Company Limited | Households | 2021 |
| Phase 9 Productions Ltd | Construction | 2025 |
| Phase Laser Limited | Professional & scientific | 2022 |
| Phase Thornbury Community Interest Company | Other services | 2018 |
| Phat Collective Ltd | Wholesale & retail | 2023 |
| Phat Feathers Ltd | Wholesale & retail | 2021 |
| Phatcats Bristol Limited | Hospitality | 2025 |
| Phaya Thai Therapy Ltd | Other services | 2026 |
| PHB Estates Limited | Real estate | 2019 |
| PHB UK Limited | Hospitality | 2007 |
| PHD Building Advisory Limited | Professional & scientific | 2021 |
| PHD Property Advisory Limited | Professional & scientific | 2016 |
| Phealth Ltd | Health & social care | 2024 |
| Phearn Limited | Financial services | 2021 |
| Phenix Installations Ltd | Construction | 2018 |
| Phenomenal Records Ltd | Extraterritorial | 2010 |
| Pheonix Life Coaching Ltd | Health & social care | 2025 |
| Pheonix Property Holdings Ltd | Real estate | 2023 |
| Pherolec Global Ltd | Wholesale & retail | 2017 |
| PHG Safety Services Ltd | Professional & scientific | 2013 |
| PHI Education Europe Ltd | Education | 2023 |
| Phidias Neoclassical Limited | Manufacturing | 1996 |
| Phidias Property Holdings Ltd | Real estate | 2022 |
| Phil & LOU Ltd | Financial services | 2024 |
| Phil 4 Art Limited | Construction | 2016 |
| Phil Ashley Ltd | Professional & scientific | 2019 |
| Phil Hammond Limited | Health & social care | 2011 |
| Phil Moody Tattoos Ltd | Arts & recreation | 2024 |
| Phil Noall Limited | Information & communication | 2011 |
| Phil Small Ltd | Financial services | 2019 |
| Philaly Ltd | Professional & scientific | 2014 |
| Philander Inns Limited | Real estate | 1968 |
| Philby Associates Ltd | Education | 2021 |