| Prepnlay Industrial Flooring Ltd | Construction | 2012 |
| Presant Health Care Limited | Public administration | 2018 |
| Prescribe Assist Ltd | Professional & scientific | 2015 |
| Prestige & Co Properties Ltd | Real estate | 2026 |
| Prestige Bathing Ltd. | Construction | 2018 |
| Prestige Custom Doors Ltd | Construction | 2024 |
| Prestige Estates and Solutions Ltd | Construction | 2024 |
| Prestige Finishings Plastering and Rendering Specialists Ltd | Construction | 2019 |
| Prestige Painting Services Limited | Construction | 2014 |
| Prestige Performer Collective Ltd | Arts & recreation | 2026 |
| Prestige Property & Building Services Ltd | Construction | 2023 |
| Price Glazing Ltd | Construction | 2002 |
| Prim's Preserves Ltd | Manufacturing | 2022 |
| Prime Build Pro Ltd | Construction | 2026 |
| Prime Building & Construction Services Ltd | Construction | 2026 |
| Prime Building Developments Ltd | Construction | 2026 |
| Prime Developments Group Ltd | Financial services | 2026 |
| Prime Extension & Build Ltd | Construction | 2024 |
| Prime Office Installation Ltd | Construction | 2026 |
| Prime Property and Developments Ltd | Real estate | 2019 |
| Prime Surgical Services Ltd | Health & social care | 2010 |
| Primeway Foods Ltd | Wholesale & retail | 2026 |
| Print UK (Mansfield) Limited | Manufacturing | 1996 |
| Printing.Com @ Imprint Limited | Real estate | 2010 |
| Priorgan Ltd | Other services | 2022 |
| Priority Developments Limited | Real estate | 2004 |
| Priors Well Brewery Limited | Manufacturing | 2015 |
| Prism Care Homes Limited | Real estate | 2018 |
| PRJ Stores Limited | Wholesale & retail | 2026 |
| Pro Draft Joinery Ltd | Construction | 2023 |
| Pro Graphix Group Ltd | Manufacturing | 2023 |
| Pro Ground Services Ltd | Administrative & support | 2024 |
| Pro Politics | Other services | 2017 |
| Pro Shrimp Limited | Wholesale & retail | 2015 |
| Pro Surface Solutions Limited | Real estate | 2016 |
| Pro-Fit Technologies Limited | Manufacturing | 2004 |
| Pro-Ram Ltd | Professional & scientific | 2018 |
| Probaty Bathrooms Limited | Wholesale & retail | 2024 |
| Prochip Holdings Ltd | Financial services | 2023 |
| Prochip Systems Limited | Wholesale & retail | 2002 |
| Profigo Ltd | Construction | 2024 |
| Profile Lamination Service Limited | Manufacturing | 2015 |
| Proflex Construction Ltd | Construction | 2011 |
| Proflex Developments Ltd | Construction | 2020 |
| Proform Aluminium Bending Limited | Manufacturing | 2001 |
| Progress Management Solutions Limited | Information & communication | 2026 |
| Progressive Furnishings Ltd | Wholesale & retail | 2009 |
| Progresus Construction Limited | Construction | 2024 |
| Progresus Group Limited | Financial services | 2024 |
| Progresus Invest Group Ltd | Financial services | 2025 |
| Progresus Investments Limited | Real estate | 2024 |
| Project Orchard Limited | Real estate | 2026 |
| Project Volta Bidco Limited | Financial services | 2024 |
| Project Volta Topco Limited | Financial services | 2024 |
| Proper Goods House Ltd | Wholesale & retail | 2026 |
| Property Management Solutions Ltd | Households | 2024 |
| Property Plus Services Ltd | Construction | 2021 |
| Propertyfix Investors Limited | Real estate | 2019 |
| Propertyinone Limited | Construction | 2025 |
| Proplate-Plus Ltd | Manufacturing | 2026 |
| Proprly Ltd | Real estate | 2024 |
| Prosmemoir Studios Ltd | Information & communication | 2026 |
| Prospect View B974BE RTM Company Limited | Households | 2023 |
| Protect YOU Ltd | Administrative & support | 2025 |
| Protracker UK Ltd | Information & communication | 2023 |
| Pryde Services (Midlands) Limited | Administrative & support | 2008 |
| PS Building and Maintenance Ltd | Construction | 2021 |
| Psalms Services Ltd | Administrative & support | 2021 |
| PSC (International) Limited | Administrative & support | 2009 |
| Pugh Property Ltd | Real estate | 2024 |
| Pumptec Pump & Valve Repairs Limited | Administrative & support | 2006 |
| Pure Lasers Ltd | Wholesale & retail | 2023 |
| Pure Pipelines Ltd. | Construction | 2017 |
| Pure Skin International Limited | Health & social care | 2017 |
| Pure Skin Medispa Limited | Other services | 2025 |
| Pure TAN Limited | Other services | 2023 |
| Pure-Ease Recruitment Limited | Administrative & support | 2023 |
| Purewipe Microfibres Ltd | Wholesale & retail | 2023 |
| Purple Joy Services Limited | Health & social care | 2020 |
| Purple Pillow Retail Solutions Limited | Information & communication | 2022 |
| Purple TIE Design Limited | Professional & scientific | 2014 |
| Purple TIE Properties Ltd | Real estate | 2022 |
| Purseglove Electrical Ltd | Construction | 2021 |
| Puya Trans Logistic Limited | Transport & logistics | 2023 |
| Pwce Hire & Sales Ltd | Administrative & support | 2026 |
| Pwre Capital Ltd | Real estate | 2016 |
| Pytches Property Limited | Construction | 2016 |
| Q 888 Limited | Hospitality | 2016 |
| Q.M. Property Management Limited | Real estate | 2003 |
| Q8 Dent Ltd | Health & social care | 2017 |
| Qakkinhla Ltd | Wholesale & retail | 2021 |
| Qdos Awards Limited | Education | 2021 |
| Qdos Training Limited | Education | 2006 |
| Qlabs (Global) Ltd | Wholesale & retail | 2019 |
| QSA Trading Limited | Wholesale & retail | 2025 |
| Quality Connection Ltd | Professional & scientific | 2018 |
| Quality Consultants (QC) Ltd | Administrative & support | 2020 |
| Quantcore Ltd | Professional & scientific | 2025 |
| Quantech Services Ltd | Professional & scientific | 2000 |
| Quantum DS Ltd | Administrative & support | 2023 |