| Prizelex Limited | Real estate | 1996 |
| PRJ Bedford Ltd | Real estate | 2018 |
| PRM Green Technologies Limited | Extraterritorial | 2009 |
| Pro Assist Facilities Ltd | Administrative & support | 2025 |
| Pro Building Services Ltd | Construction | 2018 |
| Pro DOC Solutions Ltd | Administrative & support | 2024 |
| Pro Elle Ltd | Construction | 2023 |
| Pro EV Group Ltd | Construction | 2020 |
| Pro FIX Scaffolding Ltd | Construction | 2026 |
| Pro Mobile Auto Detailing Ltd | Wholesale & retail | 2025 |
| Pro-Con Developments (2017) Limited | Construction | 2017 |
| Pro-Con Developments Limited | Construction | 2014 |
| Pro-Connect Electrical Limited | Construction | 2015 |
| Pro-Innovation Solutions Group Holdings Limited | Financial services | 2018 |
| Pro-Lifting UK Ltd | Construction | 2011 |
| Pro-Logistics Services Ltd | Construction | 2026 |
| Pro-Podiatry Services Ltd | Health & social care | 2025 |
| Pro-Rod Drainage Solutions Ltd | Manufacturing | 2023 |
| Pro-Test Consultants Ltd | Information & communication | 2016 |
| Pro-Waste-Removal Limited | Water & waste | 2018 |
| Proactive Lifting Ltd | Construction | 2026 |
| Proaptivity Software Limited | Information & communication | 1999 |
| Proballers Football Academy Ltd | Education | 2026 |
| Probate Services (Bedford) Limited | Professional & scientific | 2018 |
| Probedsacademy Ltd | Professional & scientific | 2025 |
| Prochase Consulting Limited | Professional & scientific | 2025 |
| Procurapack Ltd | Administrative & support | 2021 |
| Procurement Courses Limited | Education | 2011 |
| Prodal Ltd | Real estate | 2022 |
| Producerie Ltd | Information & communication | 2026 |
| Productive Partners Limited | Professional & scientific | 2019 |
| Professional Investment Management Services Limited | Financial services | 2007 |
| Professional Match Fishing Limited | Arts & recreation | 2021 |
| Professionals to Site Ltd | Administrative & support | 2023 |
| Proficient & Professional Ltd | Professional & scientific | 2015 |
| Profinish Paintshop Ltd | Wholesale & retail | 2024 |
| Profitplus (UK) Limited | Professional & scientific | 2001 |
| Proflite UK Ltd | Transport & logistics | 2019 |
| Profloor Interiors Ltd | Construction | 2018 |
| Progex Ltd | Construction | 2009 |
| Progmatic Motion Ltd | Administrative & support | 2018 |
| Progress Publishing Ltd | Information & communication | 2018 |
| Progressability.Org | Education | 2011 |
| Progressive Business Intelligence Ltd | Information & communication | 2010 |
| Progressive Move Ltd | Real estate | 2018 |
| Prohealth Clinic Group Limited | Health & social care | 2018 |
| Proheat Bedford Limited | Extraterritorial | 2007 |
| Proheat Limited | Construction | 2010 |
| Proisa Solutions Limited | Administrative & support | 2025 |
| Project 1 Building Services Limited | Construction | 2018 |
| Project 1 Developments Limited | Construction | 2014 |
| Project 1 Maintenance Ltd | Construction | 2025 |
| Project Eidos Limited | Information & communication | 2016 |
| Project Gull Limited | Real estate | 2022 |
| Project Image Limited | Administrative & support | 2015 |
| Project Purple Limited | Professional & scientific | 2014 |
| Project Sparks Ltd | Information & communication | 2020 |
| Project Sutton Bidco Limited | Financial services | 2022 |
| Project Ventures Limited | Construction | 2013 |
| Project X Services Ltd | Professional & scientific | 2021 |
| Project XV Interiors Limited | Professional & scientific | 2023 |
| Project: Simba CIC | Information & communication | 2024 |
| Projectpad Ltd | Hospitality | 2026 |
| Projects Power Limited | Professional & scientific | 2018 |
| Prolead Financial Solutions UK Limited | Professional & scientific | 2012 |
| Prolific Facilities Management Limited | Administrative & support | 2023 |
| Promass Limited | Professional & scientific | 1992 |
| Promethean Golf Ltd | Arts & recreation | 2018 |
| Promovision Limited | Transport & logistics | 1990 |
| Pronto Offices Ltd | Professional & scientific | 2026 |
| Pronto Paintworks Ltd | Wholesale & retail | 2024 |
| Pronto Services Limited | Construction | 2007 |
| Prop Events Ltd | Professional & scientific | 2022 |
| Prop Hold Ltd | Real estate | 2024 |
| Properties HQ Limited | Real estate | 2021 |
| Property & Developments Limited | Construction | 2001 |
| Property Agencies (Northamptonshire) Limited | Extraterritorial | 1953 |
| Property Boutique Homes Ltd | Real estate | 2024 |
| Property Boutique Limited | Administrative & support | 2006 |
| Property Care Consultants Ltd | Professional & scientific | 2014 |
| Property Garden & Maintenance Ltd | Administrative & support | 2021 |
| Property Group Construction Ltd | Construction | 2023 |
| Property Holdings Bedford Ltd | Real estate | 2015 |
| Property Home Management Ltd | Households | 2021 |
| Property Maintenance MK Ltd | Construction | 2020 |
| Property Pride Cleaning Services Limited | Administrative & support | 1987 |
| Property Pride Limited | Construction | 2005 |
| Property Smart UK Solutions Ltd | Real estate | 2026 |
| Property Solutions Bedford Ltd | Extraterritorial | 2017 |
| Property Vault Ltd | Construction | 2020 |
| Property With ME Limited | Real estate | 2024 |
| PROPERTY-25 Ltd | Information & communication | 2023 |
| Prophecy Today Ltd | Information & communication | 2015 |
| Propoly Limited | Information & communication | 2012 |
| Proptech-Pr Limited | Other services | 2020 |
| Proptech-X Limited | Extraterritorial | 2020 |
| Proptercalamus Ltd | Professional & scientific | 2019 |
| Prorsum Capital Limited | Financial services | 2018 |
| Prosecure Logistics & Care Solutions Limited | Transport & logistics | 2021 |
| Prosolve Software Limited | Information & communication | 2003 |