| PM3OG Ltd | Professional & scientific | 2019 |
| PMM Bookkeeping & Accountancy Services Ltd | Professional & scientific | 2012 |
| PMP2 Training Limited | Education | 2015 |
| PMS South West Ltd | Real estate | 2015 |
| Pncr Limited | Professional & scientific | 2010 |
| Pocock Storage Ltd | Transport & logistics | 2018 |
| Pocock Tractor Supplies Ltd | Wholesale & retail | 2008 |
| Point Aviation Limited | Other services | 2015 |
| Pole Farming Limited | Agriculture & fishing | 2005 |
| Polish Saturday School of JAN Brzechwa in Taunton Ltd | Education | 2016 |
| Polished by Lucie Ltd | Other services | 2025 |
| Pollards Yard Ltd | Real estate | 2007 |
| Pollards Yard Management Ltd | Households | 2019 |
| Pomeroys Interim Limited | Professional & scientific | 2022 |
| Pontcanna Dental Practice Limited | Health & social care | 2012 |
| Pontispool Event Catering Ltd | Hospitality | 2023 |
| Pool Wall Ltd | Households | 2024 |
| Pop&Po Pack Runs Ltd | Other services | 2025 |
| Poplar Meadows Ltd | Agriculture & fishing | 2025 |
| Poplar Road Management Company Limited | Households | 2011 |
| Pople Scaffolding Ltd | Construction | 2023 |
| Poppy Dazzlers Limited | Administrative & support | 2018 |
| Poptopinc Limited | Professional & scientific | 2017 |
| Port House Lyme Regis Ltd | Hospitality | 2025 |
| Porta (Bath) Management Company Limited | Households | 2025 |
| Portal Pizza Ltd | Hospitality | 2020 |
| Porter Dodson Secretarial Services Limited | Professional & scientific | 2024 |
| Porter Fire Systems Limited | Construction | 2015 |
| Portland Apartments (Freehold) Limited | Households | 2020 |
| Portman Place Sherborne Management Company Limited | Households | 2011 |
| Portum Tatum Leasing Limited | Real estate | 2022 |
| Portwell Recruitment Limited | Administrative & support | 2023 |
| Posh Wash (SW) Limited | Other services | 2013 |
| Posh Wash Showers Limited | Administrative & support | 2007 |
| Potaq Limited | Real estate | 2018 |
| Potar Limited | Real estate | 2019 |
| Potas Properties Limited | Real estate | 2021 |
| Potential One Health and Fitness Limited | Other services | 2019 |
| Poultry Management Services Limited | Other services | 2003 |
| Powell-Tuck Medics Limited | Health & social care | 2022 |
| Power GEN & Reserve 1 Ltd | Other services | 2017 |
| Power GEN & Reserve 2 Ltd | Other services | 2017 |
| Power Profit Limited | Professional & scientific | 2010 |
| Power Provision Limited | Administrative & support | 2000 |
| Powerstation Europe Limited | Wholesale & retail | 2015 |
| Powys-House Investments Ltd | Financial services | 2022 |
| PPM West Coast LLP | | 2018 |
| Practically Perfect Maids Limited | Administrative & support | 2023 |
| Practice Sales Ltd | Professional & scientific | 2020 |
| Pradeep Madhavan Limited | Health & social care | 2011 |
| Precious Pet Paws Limited | Households | 2019 |
| Precision Financial Limited | Professional & scientific | 2013 |
| Precision Land Surveys Ltd | Professional & scientific | 2018 |
| Precision Park Homes Ltd | Construction | 2023 |
| Precision Plank Ltd | Manufacturing | 2023 |
| Precision Printing Papers Limited | Professional & scientific | 1980 |
| Preefence Limited | Construction | 1976 |
| Premier Gear Ltd | Wholesale & retail | 2026 |
| Premier Mental Health Patient Transport Ltd | Health & social care | 2014 |
| Premier Morphs Ltd | Administrative & support | 2006 |
| Premium Abodes Limited | Real estate | 2020 |
| Premium Autogleam Ltd | Administrative & support | 2018 |
| Presidents Court Amenity Limited | Real estate | 2010 |
| Pressbell Limited | Extraterritorial | 2004 |
| Prestiga Ltd | Wholesale & retail | 2025 |
| Prestige Auto Spares Ltd | Wholesale & retail | 2014 |
| Prestige Commercial and Domestic Cleaning Ltd | Administrative & support | 2023 |
| Prestige External Cleaning Services Ltd | Administrative & support | 2023 |
| Prestige Services (South West) Limited | Wholesale & retail | 2012 |
| Preswill Ltd | Agriculture & fishing | 2014 |
| Pretzel & Pastry Ltd | Manufacturing | 2026 |
| PRG Services (UK) Limited | Other services | 1998 |
| Priceworx Limited | Information & communication | 2021 |
| Priddy's Ltd | Professional & scientific | 2006 |
| Pride Electrical Limited | Construction | 1996 |
| Primary Sports & Education (North Somerset ) Ltd | Education | 2022 |
| Primary Sports and Education Events Ltd | Education | 2025 |
| Prime Design Projects Limited | Professional & scientific | 2010 |
| Prime Property Services South West Limited | Wholesale & retail | 2021 |
| Prime Shine Services Ltd | Hospitality | 2025 |
| Primorai Ltd | Professional & scientific | 2025 |
| Primrose Cottage Holdings Ltd | Real estate | 2024 |
| Principal Protection and Events Limited | Administrative & support | 2015 |
| Print-It-Uk Ltd | Wholesale & retail | 2025 |
| PRINT123 Limited | Manufacturing | 2007 |
| Priopio Limited | Real estate | 2025 |
| Priorswood Consulting Limited | Professional & scientific | 2005 |
| Priory Close Limited | Professional & scientific | 2008 |
| Priory Court Dunster (1991) Management Company Limited | Households | 1991 |
| Priory Court Taunton Management Limited | Households | 1982 |
| Priory Housing Estates Limited | Real estate | 2025 |
| Priory Management (SW) Limited | Real estate | 2012 |
| Prioryfield House Limited | Professional & scientific | 2019 |
| Pristine Property Solution Limited | Construction | 2022 |
| Private & Corporate Staffing Solutions Limited | Other services | 2013 |
| Privatehire Taxi Limited | Transport & logistics | 2025 |
| Pro Serv Caravans Ltd | Wholesale & retail | 2024 |
| Pro Style Barber Shop Ltd | Other services | 2026 |
| Pro-Fit Windows Limited | Manufacturing | 1994 |
| PRO100 Property Ltd | Real estate | 2024 |