| Prestige Worldwide Logistics Ltd | Construction | 2021 |
| Priestgate Home Care Ltd | Health & social care | 2023 |
| Priestgate Recruitment Solutions Ltd | Administrative & support | 2020 |
| Primary Care CPD Ltd | Health & social care | 2013 |
| Prime Design Properties Ltd | Construction | 2024 |
| Prime NDA Ltd | Real estate | 2025 |
| Prime Property Solvers Ltd | Construction | 2023 |
| Prime Square Property Limited | Real estate | 2026 |
| Primefix Roofcare Ltd | Construction | 2023 |
| Primefix Roofcare Solutions Ltd | Construction | 2024 |
| Primeserve Ltd | Administrative & support | 2016 |
| Princeosumamalaika Ltd | Administrative & support | 2025 |
| Principle Cleaning Solutions Ltd | Other services | 2010 |
| Priority Mind Management Ltd | Education | 2022 |
| Prisoner Support Services Community Interest Company | Health & social care | 2021 |
| Privee Property Ltd | Real estate | 2021 |
| Prizeflow Ltd | Arts & recreation | 2025 |
| Pro Fit (FP) Ltd | Other services | 2019 |
| Pro Stalk Ltd | Wholesale & retail | 2023 |
| Pro-Fit Roofing Ltd | Construction | 2017 |
| Problasting Supplies Ltd | Construction | 2011 |
| PROCAR24 Ltd | Administrative & support | 2015 |
| Process Pipework Installation Services Limited | Professional & scientific | 2016 |
| Process Plumbing Ltd | Construction | 2023 |
| Processivity Ltd | Professional & scientific | 2021 |
| Proctor Bros. (Gosberton) Limited | Agriculture & fishing | 1949 |
| Proctor Bros. (Long Sutton) Limited | Agriculture & fishing | 1949 |
| Proctor Bros. (Wingland) Limited | Extraterritorial | 1982 |
| Procure Business Finance Limited | Financial services | 2022 |
| Prodent Services Inc Limited | Health & social care | 2012 |
| Produce Link Holdings Limited | Wholesale & retail | 2021 |
| Produce Link Ltd | Wholesale & retail | 2019 |
| Produce Logistics (UK) Limited | Transport & logistics | 2013 |
| Produce World Group Ltd | Wholesale & retail | 1995 |
| Produce World Holdings Limited | Financial services | 2025 |
| Product Pieces Limited | Information & communication | 2026 |
| Produno Games Studios Ltd | Information & communication | 2021 |
| Professional Roofing and Guttering Ltd | Construction | 2025 |
| Project Dignity C.I.C. | Health & social care | 2022 |
| Project Parker Ltd | Information & communication | 2012 |
| Project Vanilla Holdings Limited | Financial services | 2025 |
| Project Vanilla Marketing Limited | Other services | 2025 |
| Project Vanilla Production Limited | Wholesale & retail | 2025 |
| Project Wain CIC | Administrative & support | 2025 |
| Promech (UK) Limited | Manufacturing | 2012 |
| Promelex Limited | Extraterritorial | 2011 |
| Promotortech Limited | Wholesale & retail | 2023 |
| Propaint Spraying Ltd | Construction | 2014 |
| Propart Auto Ltd | Wholesale & retail | 2020 |
| Property Funder Ltd | Construction | 2016 |
| Property Investors (Midlands) Ltd | Real estate | 2025 |
| Property Panda Lettings Limited | Hospitality | 2015 |
| Property Panda Limited | Hospitality | 2014 |
| Property Panda Maintenance Limited | Construction | 2022 |
| Property Parker Group Ltd | Households | 2024 |
| Property Parker Packaging Ltd | Information & communication | 2024 |
| Props 2 YOU Limited | Manufacturing | 2023 |
| Proseedtechnology Ltd | Manufacturing | 2022 |
| Proserve Engineering Limited | Professional & scientific | 2025 |
| Protech Building& Landscapes Ltd | Administrative & support | 2026 |
| Protectmyhead Ltd | Information & communication | 2023 |
| Provedi Consulting Ltd | Professional & scientific | 2021 |
| Providence Management Company Limited | Professional & scientific | 1991 |
| Providing Strategy Solutions Ltd | Professional & scientific | 2025 |
| Przempol Ltd | Transport & logistics | 2018 |
| Przemyslaw Limited | Transport & logistics | 2018 |
| PSH Property (Lincolnshire) Limited | Households | 2022 |
| PT A&A Ltd | Wholesale & retail | 2025 |
| Ptmh Services Limited | Information & communication | 2014 |
| Puch Ltd | Transport & logistics | 2022 |
| Pudlis Trans Ltd | Transport & logistics | 2019 |
| Pula Properties Ltd | Real estate | 2025 |
| Pull and Gardens Ltd | Construction | 2026 |
| Pulse Electrical (Cambs) Ltd | Construction | 2026 |
| Puma Haulage Ltd | Transport & logistics | 2017 |
| Puma Transport Ltd | Transport & logistics | 2014 |
| Pure Drives and Patios Ltd | Construction | 2023 |
| Pure Driveways & Landscaping Ltd | Administrative & support | 2022 |
| Pure Driveways Ltd | Construction | 2020 |
| Pure Peak Roofing Ltd | Construction | 2026 |
| Purederm Homes & Co Limited | Health & social care | 2026 |
| Purerclean Limited | Administrative & support | 2010 |
| Purple Chameleon Limited | Wholesale & retail | 2010 |
| Purple Penguin Ltd | Professional & scientific | 2025 |
| Putters Place (Damgate Holbeach) Management Company Limited | Households | 2025 |
| PWL Horticulture Limited | Professional & scientific | 2019 |
| PWS Welder Training Services Ltd | Education | 2011 |
| Pyro Vision Limited | Arts & recreation | 1994 |
| Pytrops Limited | Wholesale & retail | 2011 |
| Q & B Marketing Ltd | Energy | 2025 |
| QCS Install and Maintain Ltd | Construction | 2024 |
| Qinqin Star Care Limited | Health & social care | 2015 |
| QRP Group Ltd | Manufacturing | 2026 |
| Quadring Storage Ltd | Real estate | 2020 |
| Qualipak Limited | Manufacturing | 2013 |
| Quality Logistics Solutions Ltd | Other services | 2015 |
| Quantum ERP Services Ltd | Information & communication | 2016 |
| Queensgate (14) Ltd | Real estate | 2014 |
| Quest Industrial Services Limited | Manufacturing | 2023 |
| Quested Engineering Services Ltd | Manufacturing | 2024 |