| Phronesis Care SW Ltd | Health & social care | 2026 |
| Phronesis Homes Ltd | Real estate | 2026 |
| Phsjh Limited | Financial services | 2026 |
| Physio Conditioning Ltd | Other services | 2017 |
| Physiogain Services Limited | Health & social care | 2016 |
| Physiological Measurements Ltd | Administrative & support | 2005 |
| Pickin Autos Racing Limited | Wholesale & retail | 2025 |
| Picton Homes Ltd | Real estate | 2021 |
| Pidgen & SON Funeral Service Ltd | Extraterritorial | 2020 |
| Pier One (SW) Ltd | Construction | 2015 |
| Pier One East Looe Ltd | Hospitality | 2022 |
| Pier One Kiosk Ltd | Hospitality | 2017 |
| Pier One Trading Ltd | Hospitality | 2022 |
| Pier One Weddings (SW) Ltd | Hospitality | 2025 |
| Pierce & Pierce Investments Limited | Real estate | 2019 |
| Piermasters Limited | Real estate | 1979 |
| Pilgrim GAS Ltd. | Construction | 2025 |
| Pilgrim Passports Ltd | Professional & scientific | 2020 |
| Pilgrim Pastries Ltd | Manufacturing | 2020 |
| Pilgrim Plastering Ltd | Construction | 2025 |
| Pilgrim Tyres Limited | Wholesale & retail | 2008 |
| Pilgrims Lettings Limited | Real estate | 2021 |
| Pilkington Estates Ltd | Real estate | 2019 |
| Pilkington Marine Engineering Limited | Extraterritorial | 2013 |
| Pill Manor Management Company Limited | Households | 2002 |
| Pillar Cleaning Ltd | Administrative & support | 2025 |
| Pillar Group SW Ltd | Administrative & support | 2025 |
| Pillar Land Securities Limited | Construction | 2002 |
| Pillars of Wellness & Wellbeing CIC | Arts & recreation | 2022 |
| PIN the Tail Ltd | Wholesale & retail | 2025 |
| Pinakl Ltd | Administrative & support | 2016 |
| Pink Chapel Publishing Limited | Information & communication | 2007 |
| Pink Crystal Ltd | Real estate | 2022 |
| Pink Shell Productions Ltd | Professional & scientific | 2022 |
| Pinkpiggy Designs Ltd | Wholesale & retail | 2015 |
| Pinnacle Accomodation Ltd | Real estate | 2024 |
| Pinnacle Pizza Ltd | Hospitality | 2026 |
| PIO Transport Ltd | Transport & logistics | 2018 |
| Pioneer Subsea Limited | Administrative & support | 2021 |
| Pioneering Independence Holdings Limited | Health & social care | 2025 |
| Pioneering Independence Limited | Health & social care | 2007 |
| Pioneers Healthcare Ltd | Health & social care | 2026 |
| Pipe Seal Ltd. | Manufacturing | 2021 |
| Pipe-X Southwest Ltd | Construction | 2025 |
| Piper Property (SW) Ltd | Real estate | 2019 |
| Pippins Cattery Ltd | Hospitality | 2025 |
| Piran's Playful Piskies Ltd | Arts & recreation | 2014 |
| Pirate Mary Ltd | Extraterritorial | 2021 |
| PIT & Pendulum Ltd | Hospitality | 2017 |
| PIT Stop Cafe 13 Ltd | Hospitality | 2023 |
| Pitt Projects Limited | Public administration | 2013 |
| Pixieland (Saltash) Limited | Health & social care | 2010 |
| Pixieland (South West) Limited | Health & social care | 2002 |
| Pixieland (Stoke Village) Limited | Health & social care | 2000 |
| Pixuix Limited | Information & communication | 2013 |
| Pizza Chicken Plymouth Ltd | Hospitality | 2026 |
| Pizza Fast Shad Ltd | Hospitality | 2020 |
| Pizza King Plus Ltd | Hospitality | 2026 |
| PJH Laser Limited | Other services | 2022 |
| PJO Services Ltd | Construction | 2018 |
| PJR Business Consulting and Interim Limited | Professional & scientific | 2024 |
| PK Marketing Services Limited | Administrative & support | 2008 |
| PKC Construction Ltd | Construction | 2018 |
| PL Building Services Limited | Construction | 2006 |
| PL Electrical Contractors Ltd | Construction | 2022 |
| PL Properties (Plymouth) LLP | | 2008 |
| PL Properties (South West) Ltd | Real estate | 2018 |
| PL1 Apartments Ltd | Administrative & support | 2017 |
| PL1 Plastering Ltd | Construction | 2026 |
| PL2 (Plymouth) Management Limited | Households | 2012 |
| PL4 Limited | Real estate | 2018 |
| PL4 Properties Limited | Hospitality | 2022 |
| PL4 Tyres and Services Ltd | Wholesale & retail | 2024 |
| PL4L Ltd | Real estate | 2024 |
| Place Properties SW Ltd | Real estate | 2026 |
| Plain FUN Ltd | Wholesale & retail | 2017 |
| Plan B (R&D) Limited | Professional & scientific | 2013 |
| Plan B Circular Group Ltd | Financial services | 2022 |
| Plan B Circular Limited | Wholesale & retail | 2022 |
| Plan B Recycling Technologies Limited | Administrative & support | 2022 |
| Planet Devices Ltd | Information & communication | 2020 |
| Plankton Analytics Limited | Professional & scientific | 2017 |
| Planning Obligations Desk Ltd | Professional & scientific | 2025 |
| Plant & Logistics Training Limited | Administrative & support | 2021 |
| Plant Tech Grounds Maintenance Limited | Administrative & support | 2016 |
| Plastics South West Ltd | Wholesale & retail | 2017 |
| Platform # 101 (Exeter) Management Company Limited | Households | 2005 |
| Platformbyte Limited | Information & communication | 2024 |
| Platinum Car Centre UK Limited | Wholesale & retail | 2017 |
| Platinum Developments SW Limited | Construction | 2015 |
| Platinum GIN Ltd | Wholesale & retail | 2018 |
| Platinum Pro Roofing Ltd | Construction | 2026 |
| Platinum Student Services Limited | Education | 2016 |
| Plaws Smiles Limited | Health & social care | 2026 |
| Play Bars Group Ltd | Administrative & support | 2018 |
| Play IT VR Limited | Arts & recreation | 2018 |
| Play Music From Within Ltd | Information & communication | 2025 |
| Play With Games Ltd | Information & communication | 2014 |
| Player Centered Sports Limited | Education | 2018 |
| PLAYER2 Consulting Limited | Information & communication | 2017 |