| Premier Homes (Devon) Limited | Real estate | 1997 |
| Premier Homes Holdings Limited | Real estate | 2017 |
| Premier JET Support Limited | Transport & logistics | 2013 |
| Premier Kitty Hotel Ltd | Agriculture & fishing | 2025 |
| Premier Landscaping Limited | Administrative & support | 2019 |
| Premier Park Limited | Other services | 2007 |
| Premier Parking Solutions Holdings Limited | Financial services | 2009 |
| Premier Parking Solutions Limited | Other services | 2008 |
| Premierline Management Limited | Real estate | 1994 |
| Premium UK Properties Ltd | Real estate | 2022 |
| Presona UK Limited | Manufacturing | 2008 |
| Prestige Executive & Taxis Limited | Transport & logistics | 2017 |
| Prestige Lettings and Management Limited | Real estate | 2020 |
| Prestige Pharma Limited | Wholesale & retail | 2025 |
| Prestigious Partys Ltd | Arts & recreation | 2014 |
| Prestigious Property Investments Ltd | Real estate | 2021 |
| Prestigious Stays Ltd | Real estate | 2021 |
| Preston Boathouse Limited | Hospitality | 2010 |
| Preston Property Partnership Ltd | Real estate | 2018 |
| Preston's Butchers Limited | Wholesale & retail | 2022 |
| Pretorius Property Solutions Ltd | Real estate | 2024 |
| Pretty Pearl Bridal Ltd | Wholesale & retail | 2024 |
| Prezzies Ltd | Wholesale & retail | 2012 |
| Price Corp Ltd | Hospitality | 2020 |
| Price Mcmeeking Limited | Education | 2024 |
| Prideaux Build Ltd | Construction | 2019 |
| Priestley Wish Limited | Professional & scientific | 2026 |
| Primary 9 Ltd | Wholesale & retail | 2025 |
| Prime Baits Limited | Agriculture & fishing | 2023 |
| Prime Build South West Ltd | Construction | 2019 |
| Prime Living Design and Build Limited | Construction | 2025 |
| Prime Location SW Limited | Real estate | 2023 |
| Prime Path Homes Ltd | Real estate | 2024 |
| Prime Precision Clean Ltd | Administrative & support | 2025 |
| Prime Structures Limited | Construction | 2012 |
| Prime Time of Exeter Ltd | Other services | 2007 |
| Primeroute Delivery Ltd | Transport & logistics | 2026 |
| Primesmart Residents Management Limited | Households | 1988 |
| Primetrica Limited | Information & communication | 1993 |
| Primrose Meadow Ltd | Hospitality | 2025 |
| Prince Fighting Associates Limited | Professional & scientific | 2016 |
| Priory Fishery Ltd | Agriculture & fishing | 2015 |
| Prism Decorating Ltd | Construction | 2017 |
| Prism IOT Ltd | Information & communication | 2009 |
| Prism Measured Surveys Ltd | Construction | 2016 |
| Prisma Analytics Limited | Information & communication | 2015 |
| Pro Bricklayers Ltd | Construction | 2019 |
| Pro Car Transport Ltd | Transport & logistics | 2019 |
| Pro Composite Solutions Ltd | Wholesale & retail | 2019 |
| Pro Group South West Ltd | Construction | 2025 |
| Pro Piling Ltd | Construction | 2023 |
| Pro-Bead (Europe) Limited | Extraterritorial | 2005 |
| Pro-Bead U.K. Limited | Manufacturing | 1997 |
| Pro-Built Building Solutions Ltd | Construction | 2019 |
| Pro-Gresh Limited | Construction | 2009 |
| Pro-Pa Solutions Limited | Wholesale & retail | 2024 |
| PRO10 App Ltd | Information & communication | 2025 |
| Probert Legal Limited | Professional & scientific | 2013 |
| Problem Solved Accounting Solutions Limited | Professional & scientific | 2014 |
| Process Environmental Control Systems Limited | Manufacturing | 2000 |
| Procurement Ventures Ltd | Professional & scientific | 2023 |
| Prodecs South West Limited | Construction | 2014 |
| Prodigy Escapes Ltd | Arts & recreation | 2022 |
| Production 4 Training Ltd | Administrative & support | 2018 |
| Production Services Devon Ltd | Information & communication | 2024 |
| Prof and DOC Ltd | Manufacturing | 2024 |
| Professor Carp Bait Ltd | Wholesale & retail | 2025 |
| Profix Carpentry Ltd | Construction | 2018 |
| Profixscaffold Ltd | Construction | 2021 |
| Progenitri Limited | Public administration | 2025 |
| Progressive Coatings Limited | Construction | 2007 |
| Progressive Holdings Limited | Professional & scientific | 2001 |
| Progressive Maintenance Limited | Construction | 2009 |
| Progressive Security Ltd | Administrative & support | 2010 |
| Progressive Sports Development Ltd | Arts & recreation | 2025 |
| Progressive Systems Limited | Construction | 1986 |
| Progressive Systems Maintenance Limited | Construction | 2000 |
| Project COX Ltd | Wholesale & retail | 2026 |
| Project EXE Services Ltd | Construction | 2012 |
| Project Management & Building ETC Ltd | Construction | 2013 |
| Project Music (South West) Limited | Wholesale & retail | 2001 |
| Project Orion Ltd | Professional & scientific | 2025 |
| Project Plots Ltd | Construction | 2026 |
| Project QW Ltd | Real estate | 2012 |
| Project Valets Ltd | Wholesale & retail | 2021 |
| Project Wessex Limited | Professional & scientific | 2007 |
| Projuice Holdings Limited | Financial services | 2004 |
| Projuice Limited | Wholesale & retail | 2004 |
| Prolet Limited | Real estate | 2007 |
| Prominence Care Group Limited | Health & social care | 2021 |
| Prop Traders Hub Ltd | Wholesale & retail | 2026 |
| Propath Diagnostics Ltd | Health & social care | 2025 |
| Propco (Dinan Way) Ltd | Construction | 2023 |
| Properties South West Ltd | Real estate | 2022 |
| Property Care Partnership Ltd | Other services | 2010 |
| Property Construction Yacht Club Ltd | Arts & recreation | 2022 |
| Property Devon Investments Ltd | Real estate | 2020 |
| Property Hold OR Fold TV Limited | Information & communication | 2022 |
| Property Kudos Limited | Real estate | 2021 |
| Property Light Homes Ltd | Real estate | 2023 |