| Phoenix Asset Integrity Solutions Ltd | Professional & scientific | 2026 |
| Phoenix House Group Ltd | Professional & scientific | 2018 |
| Phoenix Landscapes and Haulage Services Limited | | 2011 |
| Phoenix Metals (NE) Ltd | Extraterritorial | 2014 |
| Phoenix Nails (Newquay) Limited | Other services | 2017 |
| Phoenix Project Management & Consultancy Limited | Administrative & support | 2016 |
| Phoenix Pubs Ltd | Hospitality | 2020 |
| Phoenix Quality Consultancy Ltd | Professional & scientific | 2026 |
| Phonerefresh Ltd | Wholesale & retail | 2026 |
| Photo Graft Limited | Professional & scientific | 2020 |
| Physioflex Rehabilitation Clinic Ltd | Real estate | 2024 |
| Physique Enhancement Ltd | Other services | 2020 |
| Physique Laboratory UK Ltd | Other services | 2022 |
| PI Family Wills Limited | Professional & scientific | 2007 |
| Picante Productions Ltd | Construction | 2024 |
| Piccos Pizza Ltd | Hospitality | 2025 |
| Pick to Start Ltd | Transport & logistics | 2026 |
| Pickard Delivery Ltd | Wholesale & retail | 2026 |
| Pickering & Sons Building Contractors Ltd | Construction | 2026 |
| Pickering Consultancy Services Limited | Professional & scientific | 2014 |
| Piercings by Rachel Ltd | Other services | 2025 |
| Pike Property Management Ltd | Real estate | 2017 |
| Piksy Limited | Wholesale & retail | 2025 |
| Pilotall Ltd | Transport & logistics | 2014 |
| Pimco 2852 Limited | Professional & scientific | 2010 |
| Pimeo Ltd | Information & communication | 2026 |
| Pink Lemonaide Limited | Professional & scientific | 2017 |
| Pinkbutterfly Limited | Wholesale & retail | 2020 |
| Pinkney Ec+I Limited | Construction | 2025 |
| Pinrose Commercial Finance Ltd | Financial services | 2024 |
| Pintail Nest Farm Limited | Agriculture & fishing | 2019 |
| PIP Refurbs Ltd | Construction | 2026 |
| Pipe Wise Engineering Ltd | Construction | 2026 |
| Pipeline Design Ltd | Professional & scientific | 2007 |
| Pipewelding Inspection Services Ltd | Construction | 2012 |
| Piping and Stress Engineers Limited | Professional & scientific | 2012 |
| Piping Design and Engineering Limited | Professional & scientific | 2022 |
| Pippen Access Ltd | Construction | 2020 |
| Pitch (Middlesbrough) Limited | Administrative & support | 2023 |
| Pixel Web Solutions Ltd | Information & communication | 2024 |
| Pixels and Packs Ltd | Manufacturing | 2025 |
| Pixelsnpacks Ltd | Wholesale & retail | 2026 |
| Pixelwood Studios Ltd | Professional & scientific | 2021 |
| Pizza & Co Longlands Ltd | Hospitality | 2020 |
| Pizza Box 4 U Limited | Hospitality | 2023 |
| Pizza Box Teesside Ltd | Hospitality | 2026 |
| Pizza Castle Express Ltd | Hospitality | 2024 |
| Pizza Feast 4U M Ltd | Hospitality | 2025 |
| Pizza Go and Catering Ltd | Hospitality | 2022 |
| Pizza Go NE Ltd | Hospitality | 2026 |
| Pizza Gusto Napoli Ltd | Hospitality | 2026 |
| Pizza Hartlepool NE Ltd | Hospitality | 2025 |
| Pizza Lazio Ltd | Hospitality | 2025 |
| Pizza Palace 82 Ltd | Hospitality | 2025 |
| Pizza PAN (North East) Limited | Hospitality | 2012 |
| Pizza Pronto Richmond Ltd | Hospitality | 2016 |
| Pizza Roma NE Ltd | Hospitality | 2022 |
| Pizza Shop Middlesbrough Limited | Hospitality | 2024 |
| Pizza Stylists Ltd | Hospitality | 2020 |
| Pizzaandcoj Limited | Hospitality | 2025 |
| PJ Joscar Limited | Real estate | 2026 |
| PJ Windows North East Ltd | Construction | 2026 |
| PJH Building Services Ltd | Construction | 2023 |
| Pjkn Welding Limited | Manufacturing | 2017 |
| PJL Consultancy Ltd | Construction | 2022 |
| PJL Developments North East Limited | Construction | 2017 |
| PJM Cable Jointing Services Ltd | Professional & scientific | 2018 |
| Pjml Limited | Professional & scientific | 2007 |
| PJR Fabrication Ltd | Construction | 2026 |
| PJS Brickwork Limited | Construction | 1998 |
| PJS Properties Limited | Real estate | 2003 |
| PJT Consultancy Limited | Professional & scientific | 2020 |
| PJT Offshore Ltd | Professional & scientific | 2017 |
| PJW Developers Limited | Real estate | 2023 |
| PKM Retail Limited | Wholesale & retail | 2023 |
| PL Technical Services Limited | Other services | 2023 |
| Plan My Function Ltd | Administrative & support | 2019 |
| Planit Project Services Limited | Real estate | 1998 |
| Planmead Limited | Information & communication | 2023 |
| Plant & Lorries Ltd | Wholesale & retail | 2025 |
| Plastic Welded Products Limited | Transport & logistics | 1990 |
| Platform Arts Limited | Arts & recreation | 2000 |
| Platform Markets Group Limited | Administrative & support | 2022 |
| Platinum Construc Limited | Construction | 2025 |
| Platinum Investment NE Ltd | Real estate | 2019 |
| Platinum Properties Teesside Ltd | Real estate | 2024 |
| Platinum Retrievers Limited | Agriculture & fishing | 2021 |
| Platinum TN Care Ltd | Health & social care | 2022 |
| Platinum Tyre Services Ltd | Wholesale & retail | 2025 |
| Platvix Ltd | Information & communication | 2024 |
| Play Limited | Manufacturing | 2016 |
| Plenary Project Solutions Limited | Professional & scientific | 2007 |
| Plixel Ltd | Wholesale & retail | 2025 |
| Plumbella Ltd | Other services | 2019 |
| PLUMBING247 Ltd | Extraterritorial | 2020 |
| Plxp Limited | Professional & scientific | 2025 |
| Plycraft Ltd | Manufacturing | 2025 |
| PM Pest Control Ltd | Health & social care | 2025 |
| PM Planning Services Ltd | Professional & scientific | 2017 |
| PM13 Offshore Services Limited | Construction | 2024 |