| Phoenix Wifi Ltd | Information & communication | 2022 |
| Phuong Linh Ltd | Other services | 2025 |
| Physical Independence Ltd | Health & social care | 2025 |
| Physiosam Ltd | Health & social care | 2025 |
| Pickled Peppers Catering & Events Management Limited | Hospitality | 2010 |
| Pigs Gone Wild Ltd | Hospitality | 2024 |
| Pilates-Port Limited | Arts & recreation | 2025 |
| Pillow BOW Company Limited | Manufacturing | 2017 |
| Pimenta Lopes Ltd | Hospitality | 2023 |
| PINE2OAK (Torquay) Ltd | Wholesale & retail | 2004 |
| Pinxton Park Management Company Ltd | Real estate | 2025 |
| Pitman Conveniences Ltd | Wholesale & retail | 2018 |
| Pitrok Limited | Administrative & support | 2009 |
| Pixolage Limited | Information & communication | 2019 |
| Pizzas & Dreams Ltd | Hospitality | 2023 |
| PJB Electrical Solutions Limited | Construction | 2008 |
| Pjls Farms Ltd | Agriculture & fishing | 2016 |
| PK Building Contractor Ltd | Construction | 2017 |
| PL Building Design Limited | Construction | 2015 |
| Placepave Limited | Construction | 2007 |
| Plane Concepts Ltd | Professional & scientific | 2011 |
| Plas Estate Limited | Extraterritorial | 2022 |
| Platinum Software Design Ltd | Information & communication | 2025 |
| Plowright Organic Limited | Agriculture & fishing | 2020 |
| PLP Electrical Ltd | Construction | 2021 |
| Plumbcare Southwest Ltd | Construction | 2015 |
| Plumbwest Ltd | Construction | 2007 |
| Point and Run Ltd | Arts & recreation | 2023 |
| Polden Accountants Ltd | Professional & scientific | 2010 |
| Polden Health Ltd | Health & social care | 2023 |
| Polden Planning Limited | Professional & scientific | 2023 |
| Polyinstant Ltd | Real estate | 1981 |
| Pontaqua Group Limited | Financial services | 2019 |
| Popaj Properties Ltd | Real estate | 2024 |
| Popham & Co Ltd | Real estate | 2026 |
| Popham Global Enterprises Ltd | Construction | 2020 |
| Porcupine Leisure Limited | Hospitality | 2022 |
| Porkers Ltd | Extraterritorial | 2020 |
| Port Marine Limited | Professional & scientific | 2019 |
| Portcullis Projects Limited | Construction | 2026 |
| Posh Wash (Bridgwater) Limited | Other services | 2025 |
| Posidonia Environmental Services Ltd | Professional & scientific | 2024 |
| Potters FAB Ltd | Manufacturing | 2025 |
| Power Poles Transport Limited | Transport & logistics | 2018 |
| Powered Access Limited | Education | 2020 |
| Powertech Southwest Ltd | Construction | 2019 |
| Powerwash (Cheddar) Limited | Agriculture & fishing | 2004 |
| Powerwash Properties Limited | Real estate | 2025 |
| Poynders Road Residents Company Limited | Households | 1999 |
| Precision Welding Solutions Ltd | Professional & scientific | 2023 |
| Premier Chef Foodservice Limited | Hospitality | 2003 |
| Premier Hand Car Wash A39 Ltd | Administrative & support | 2026 |
| Premier Parking Services UK Ltd | Administrative & support | 2009 |
| Premqual Quality Management Limited | Administrative & support | 2012 |
| Prestige Cleaning Services (SW) Ltd | Other services | 2018 |
| Prestige Kiosks Limited | Construction | 2010 |
| Pretty Polished Limited | Other services | 2026 |
| PRF Enterprises Limited | Arts & recreation | 2026 |
| Price Contryside Construction Ltd | Construction | 2025 |
| Primed Leadership Limited | Administrative & support | 2015 |
| Print Management Consultancy Limited | Professional & scientific | 2006 |
| Print Ninja (SW) Ltd | Manufacturing | 2012 |
| Pro Sport Grappling Limited | Arts & recreation | 2022 |
| Pro Validation Limited | Professional & scientific | 2007 |
| Pro-Sense (UK) Limited | Construction | 2005 |
| Pro-Vent Air Solutions Ltd | Manufacturing | 2021 |
| Process Packaging Automation Limited | Manufacturing | 2019 |
| Prodos Care Ltd | Health & social care | 2021 |
| Professional Trade Services Ltd | Construction | 2018 |
| Professor David Barrett (2010) Limited | Health & social care | 2009 |
| Professor David Barrett Ltd | Health & social care | 2006 |
| Profinish Automotive Ltd | Wholesale & retail | 2025 |
| Progress in Partnerships Ltd | Education | 2024 |
| Progress Plumbing and Facilities Maintenance Limited | Construction | 2026 |
| Progressive Poultry Solutions Limited | Agriculture & fishing | 2013 |
| Project Engineering and Training Limited | Professional & scientific | 2015 |
| Project Homes Ltd | Real estate | 2025 |
| Project Support Systems Limited | Administrative & support | 2012 |
| Projectajmoss Limited | Information & communication | 2024 |
| Promise Digital Limited | Information & communication | 2010 |
| Promise Works Limited | Health & social care | 2011 |
| Promotions B2B Ltd | Professional & scientific | 2013 |
| Prompt Cabins Town and Country Ltd | Manufacturing | 2025 |
| Pronto Assist Limited | Manufacturing | 2020 |
| Property Rascal Ltd | Construction | 2025 |
| Property Renovations 1 Ltd | Construction | 2023 |
| Prosellick Ltd | Health & social care | 2016 |
| Prospect View Developments Limited | Real estate | 2020 |
| Prospero Resolutions Limited | Professional & scientific | 2023 |
| Proswimwear Limited | Wholesale & retail | 2007 |
| Proud Construct Ltd | Construction | 2021 |
| Prydex Limited | Other services | 2020 |
| Psychiatric Consultancy Ltd | Health & social care | 2018 |
| PT Fulfillment (UK) Co., Ltd. | Transport & logistics | 2017 |
| PT Professional Consultancy Services Ltd | Public administration | 2016 |
| PT Taillift Solutions Ltd | Professional & scientific | 2021 |
| Public Horizons Limited | Professional & scientific | 2025 |
| Pump Covers Brand Ltd | Wholesale & retail | 2023 |
| Pura Care Solutions Ltd. | Manufacturing | 2024 |
| Pure Choice Somerset Ltd | Wholesale & retail | 2026 |