| Prospectus Consulting Limited | Information & communication | 2010 |
| Prosperity Capital Ventures Limited | Financial services | 2025 |
| Protagonist Games Ltd | Information & communication | 2025 |
| Protax Advisors Ltd | Professional & scientific | 2023 |
| Protea Protection Rights and Equality for Women CIC | Professional & scientific | 2026 |
| Protech Fabrications Limited | Manufacturing | 1983 |
| Protected by Faith Ltd | Administrative & support | 2025 |
| Protium Technologies Ltd | Professional & scientific | 2021 |
| Protouch Painting & Plastering Services Limited | Construction | 2024 |
| Provenzano Agency Limited | Professional & scientific | 2020 |
| Provident House Bedford Offices Ltd | Real estate | 2020 |
| Provident View Ltd | Real estate | 2016 |
| Provision MK Ltd | Construction | 2023 |
| Provisions Services Ltd | Health & social care | 2022 |
| Prowess Group Ltd. | Professional & scientific | 2015 |
| PRS BN Limited | Administrative & support | 2024 |
| Pruna Haulage Ltd | Administrative & support | 2016 |
| PS Bedford Ltd | Real estate | 2021 |
| PS Brick Laying and General Builder Limited | Construction | 2022 |
| PS Builders Bedford Ltd | Construction | 2019 |
| PS Decor Services Ltd | Construction | 2025 |
| PS Divine Care Ltd | Health & social care | 2023 |
| PS Painting & Decorating Service Ltd | Construction | 2024 |
| PS Trust Corporation Limited | Administrative & support | 2024 |
| PS Will Storage Limited | Professional & scientific | 2026 |
| PS Wills and Estate Planning Limited | Professional & scientific | 2026 |
| PSB Electrical Northampton Ltd | Construction | 2017 |
| PSC Rentals Ltd | Real estate | 2020 |
| PSE Builders Limited | Construction | 2026 |
| Psirti Events Ltd | Administrative & support | 2014 |
| Psychoaesthetics Limited | Health & social care | 2016 |
| Psychrafts Limited | Real estate | 2014 |
| Psyphy Ltd | Information & communication | 2023 |
| PTA Events Limited | Information & communication | 2015 |
| PTG Business Limited | Extraterritorial | 2017 |
| PTL Consulting Limited | Information & communication | 2013 |
| PTSKJB2 Ltd | Real estate | 2020 |
| PTSP2 Ltd | Financial services | 2018 |
| Public Consultancy Limited | Professional & scientific | 2020 |
| Publictec Limited | Information & communication | 2021 |
| Pucci Foods Ltd | Hospitality | 2023 |
| Puch-An Ltd | Wholesale & retail | 2025 |
| Puddleducks Nursery & Pre-School (Colmworth) Limited | Health & social care | 2021 |
| Pulloxhill Auto Services Ltd | Wholesale & retail | 2019 |
| Pulloxhill Consulting Limited | Professional & scientific | 2007 |
| Pulse Jewellery Ltd | Wholesale & retail | 2026 |
| Pulse Motorsport Ltd | Wholesale & retail | 2024 |
| Punjabi Books UK Ltd | Wholesale & retail | 2024 |
| Punjabi by Culture Limited | Hospitality | 2022 |
| Punnen & Paarel Limited | Health & social care | 2024 |
| Purbeck Support Services Ltd | Administrative & support | 2022 |
| Pure Art Clinic Ltd | Health & social care | 2016 |
| Pure Business Innovation Limited | Real estate | 2019 |
| Pure Business Law Limited | Professional & scientific | 2016 |
| Pure Business Solutions Group (UK) Limited | Real estate | 2017 |
| Pure Business Solutions Limited | Information & communication | 2022 |
| Pure Family Law Limited | Professional & scientific | 2022 |
| Pure Heart Boutique Ltd | Wholesale & retail | 2019 |
| Pure Melt Group Ltd | Wholesale & retail | 2026 |
| Pure Planet Recycling Limited | Water & waste | 2007 |
| Pure SIP & Grub Ltd | Hospitality | 2024 |
| Purelogic Controls Limited | Information & communication | 2005 |
| Purge Bright Limited | Other services | 2025 |
| Puritis Recruitment Solutions Limited | Administrative & support | 2022 |
| Purity Perez Limited | Transport & logistics | 2024 |
| Purna IT Services Ltd | Information & communication | 2011 |
| Puro Products Limited | Wholesale & retail | 2021 |
| Purple Chimpanzee Consultants Ltd | Professional & scientific | 2020 |
| Purple Elephant Property Ltd | Real estate | 2025 |
| Purple Frog Connections Ltd | Information & communication | 2011 |
| Purple Nest Properties Ltd | Real estate | 2025 |
| Purple Properties Solution Limited | Construction | 2024 |
| Purple Rooms Group Ltd | Hospitality | 2025 |
| Purple Soul Crystals Limited | Wholesale & retail | 2026 |
| Purple Square AI Ltd | Hospitality | 2025 |
| Purpose Care Solutions Ltd | Health & social care | 2022 |
| Purrfect Hire Ltd | Transport & logistics | 2015 |
| Purvis Psychotherapy Limited | Health & social care | 2023 |
| PUT a Plug in IT EV UK Ltd | Construction | 2024 |
| Putnoe 1964 Limited | Extraterritorial | 2013 |
| Putnoe Daily News Limited | Wholesale & retail | 2023 |
| Putnoe Primary School | Education | 2013 |
| Putnoe Woods Preschool Limited | Education | 2012 |
| Puunnamii Creeative Limited | Information & communication | 2016 |
| Puzzle Services Limited | Professional & scientific | 2005 |
| PVB Ltd | Real estate | 2021 |
| PVC 2 Ltd | Administrative & support | 2023 |
| PWB Manufacturing Consultancy Limited | Professional & scientific | 2025 |
| Pwjh Design Ltd | Professional & scientific | 2018 |
| Pwjh Property Limited | Construction | 2020 |
| Pyghtle Properties Limited | Real estate | 1998 |
| Pymont Consulting Ltd | Professional & scientific | 2016 |
| Q Living Limited | Extraterritorial | 2007 |
| Q-Max Systems Limited | Information & communication | 1992 |
| QA Contracts Limited | Administrative & support | 2015 |
| Qalt Services Ltd | Information & communication | 2026 |
| Qamar AL Sama Limited | Wholesale & retail | 2025 |
| QCE (UK) Limited | Wholesale & retail | 2008 |
| QDL Stud Ltd | Agriculture & fishing | 2024 |
| Qettal Limited | Information & communication | 2016 |