| Peirce-Field Properties LLP | | 2017 |
| Pembroke Street Estate Management Board Limited | Real estate | 1994 |
| Pemros Road Limited | Real estate | 2018 |
| Penfound Limited | Professional & scientific | 2023 |
| Pengelly Funeral Service Ltd | Extraterritorial | 2020 |
| Peninsula Breast & General Surgery Ltd | Health & social care | 2012 |
| Peninsula Data Solutions Limited | Information & communication | 2018 |
| Peninsula Dental Social Enterprise CIC | Health & social care | 2013 |
| Peninsula Estates Ltd | Administrative & support | 2008 |
| Peninsula Finance PLC | Financial services | 2002 |
| Peninsula Financial Planning Limited | Professional & scientific | 2016 |
| Peninsula Jewellery Limited | Wholesale & retail | 2014 |
| Peninsula Marine Services Ltd | Manufacturing | 2015 |
| Peninsula Medical Reports Limited | Health & social care | 2011 |
| Peninsula Medical Services Ltd | Health & social care | 2020 |
| Peninsula Medicals Inc Limited | Wholesale & retail | 2021 |
| Peninsula Medicals Limited | Wholesale & retail | 2017 |
| Peninsula Properties Limited | Real estate | 1985 |
| Peninsula Wealth Limited | Professional & scientific | 2017 |
| Penlee Gardens Properties Ltd | Construction | 2024 |
| Penlee Place Management Co. Ltd. | Extraterritorial | 2010 |
| Penmayne Limited | Construction | 2011 |
| Pennant Yachts (UK) Limited | Manufacturing | 2014 |
| Penny Black Ventures Ltd | Financial services | 2022 |
| Penny Come Supermarket Group Ltd | Wholesale & retail | 2022 |
| Pentagon Financial Solutions Limited | Financial services | 2018 |
| Penton Group Limited | Financial services | 2026 |
| Pentrebay Properties Limited | Real estate | 1996 |
| People & Pipeline Consulting Limited | Professional & scientific | 2024 |
| People People Development Limited | Administrative & support | 2016 |
| Pepe Garden Furniture Limited | Other services | 1992 |
| Pepper Kaapi Ltd | Hospitality | 2023 |
| Pepper Properties South West Ltd | Real estate | 2020 |
| Pepper Rentals Limited | Real estate | 2023 |
| Percter Limited | Real estate | 1983 |
| Peregrine Property Services Ltd | Administrative & support | 2016 |
| Peregrine Risk Management Ltd | Administrative & support | 2019 |
| Perfect and Shine Limited | Administrative & support | 2023 |
| Perfect Elegance Limited | Wholesale & retail | 2017 |
| Perfect Lets Plymouth Ltd | Real estate | 2021 |
| Perfectly Polished Plymstock Limited | Other services | 2021 |
| Perillas North Hill Ltd | Hospitality | 2022 |
| Perkins Farms Limited | Real estate | 1995 |
| Perpetual Build Limited | Financial services | 2017 |
| Perpetual Motion Business Catalysts Ltd | Professional & scientific | 2011 |
| Perriam Properties Ltd | Real estate | 2025 |
| Personal Office Services Limited | Real estate | 1971 |
| Personal Tax Services (UK) Limited | Professional & scientific | 2003 |
| Personalised Naturopathic Care Ltd | Health & social care | 2025 |
| Pet Christmas Crackers Ltd | Wholesale & retail | 2026 |
| Pet Friendly (Ivybridge) Limited | Real estate | 2024 |
| Pet Friendly Ltd | Real estate | 2019 |
| Petals (SW) Ltd | Wholesale & retail | 2012 |
| Pete Clayton Illustration & Animation Limited | Professional & scientific | 2021 |
| Pete Nicholls Roofing Limited | Construction | 2023 |
| Pete's GAS Limited | Manufacturing | 2019 |
| Peter Goord Travel Limited | Extraterritorial | 2014 |
| Peter Mcgirr Services Limited | Other services | 2001 |
| Peter Mildon Advisory Limited | Professional & scientific | 2026 |
| Peter Nilsson Consulting Limited | Information & communication | 2004 |
| Peter Polkinghorn Ltd | Hospitality | 2022 |
| Petrellen Court Management Ltd | Households | 2022 |
| Petrie Sports Performance Ltd | Education | 2024 |
| Petrig Limited | Professional & scientific | 2022 |
| Petrova DS Ltd | Health & social care | 2023 |
| Pets Market Limited | Extraterritorial | 2023 |
| Peverell Clinic Limited | Health & social care | 2003 |
| Peverell Property Maintenence Ltd | Construction | 2022 |
| PF & Co Construction Ltd | Construction | 2020 |
| PF & Co Developments Ltd | Real estate | 2020 |
| PF & Co Property Ltd | Real estate | 2020 |
| PF Forensics Ltd | Administrative & support | 2008 |
| PF Refurbishment Specialists Ltd | Construction | 2018 |
| Pfcad Services Ltd | Administrative & support | 2018 |
| PFM Engineering Limited | Wholesale & retail | 2017 |
| PG Promotions Ltd | Arts & recreation | 2023 |
| PGC Global Ltd | Public administration | 2011 |
| PGL Services Limited | Information & communication | 2009 |
| PGM Productions Limited | Transport & logistics | 2004 |
| PH Enterprises Dartmoor Limited | Hospitality | 2026 |
| PH Group UK Limited | Wholesale & retail | 2000 |
| Phare Legal Services Ltd | Professional & scientific | 2021 |
| Pharma Wellbeing Ltd | Professional & scientific | 2026 |
| Pharmalytics Consultancy Ltd | Health & social care | 2025 |
| Phenomyx CIC | Professional & scientific | 2023 |
| PHI Offshore Limited | Professional & scientific | 2015 |
| Philip Bailey Architects Limited | Professional & scientific | 2000 |
| Philip Park Ltd | Construction | 2013 |
| Philpott Properties Ltd | Real estate | 2026 |
| Philson Properties Limited | Hospitality | 1982 |
| Pho'N Grill Ltd | Hospitality | 2025 |
| Phoebus Engineering Limited | Professional & scientific | 2003 |
| Phoenix Bistro Ltd | Hospitality | 2026 |
| Phoenix Building & Maintenance Limited | Construction | 2021 |
| Phoenix Events (SW) Ltd | Hospitality | 2025 |
| Phoenix Motors and Towing Ltd | Wholesale & retail | 2025 |
| Phoenix Southwest Decorating Contractors Limited | Construction | 2019 |
| Phoenix Wharf (SW) Ltd | Hospitality | 2022 |
| Photo Printing Ltd | Professional & scientific | 2023 |
| Phronesis Care Ltd | Health & social care | 2026 |