| Prompt Logistics Midlands Ltd | Transport & logistics | 2024 |
| Propertaire Ltd | Real estate | 2019 |
| Properties 4 ALL Ltd | Real estate | 2019 |
| Property Matters England Ltd | Real estate | 2022 |
| Propertyrenovate Ltd | Real estate | 2011 |
| Prosafe Consulting Ltd | Professional & scientific | 2024 |
| Prospect PBS Specialist Nursing and Autism Services Ltd | Health & social care | 2007 |
| PS Bennett Joinery & Building Ltd | Construction | 2010 |
| PS Competitions Ltd | Arts & recreation | 2026 |
| PS Property Development Limited | Construction | 2014 |
| PSA Consulting Limited | Professional & scientific | 2013 |
| PSG Engineering Ltd | Manufacturing | 2024 |
| PSI Blackfordby Limited | Professional & scientific | 2020 |
| PTS Consult Ltd | Professional & scientific | 2025 |
| PUD Consultancy Services Ltd | Construction | 2014 |
| Pura Technologies Limited | Wholesale & retail | 2017 |
| Pure Creative Solutions Limited | Professional & scientific | 2011 |
| Puwar Food Ltd | Manufacturing | 2026 |
| Puwar Ltd | Hospitality | 2023 |
| PVG Marketing Consultancy Ltd | Professional & scientific | 2025 |
| PVH Transport Limited | Transport & logistics | 2019 |
| PW Automotive Training Ltd | Administrative & support | 2018 |
| PW Construction (Midlands) Ltd | Manufacturing | 2022 |
| Pyrtex Ltd | Information & communication | 2025 |
| QA Governance Ltd | Health & social care | 2013 |
| Qsine Catering & Consulting Ltd | Hospitality | 2015 |
| Quality Sign Installation Limited | Professional & scientific | 2022 |
| Quality Transport Plans Ltd | Transport & logistics | 2023 |
| Quercus Otterbrook Limited | Manufacturing | 2016 |
| Quick-Calcs.Com Limited | Professional & scientific | 2008 |
| Quigley and Daughters Property Ltd | Real estate | 2025 |
| Quinn Harper Properties Ltd | Real estate | 2026 |
| R & D Stainless Limited | Manufacturing | 2015 |
| R & H Construction Ltd | Construction | 2024 |
| R & J Shaw Engineering Limited | Manufacturing | 2003 |
| R & R Engineering Services Ltd | Other services | 2018 |
| R Chamberlain Estates Ltd | Real estate | 2023 |
| R Holland-Mason Limited | Construction | 2016 |
| R M Plant Ltd | Manufacturing | 2013 |
| R S Aggregates Ltd | Mining & quarrying | 2020 |
| R. Hodson Walker Limited | Agriculture & fishing | 1964 |
| R.Massey & Son(Woodville)Limited | Wholesale & retail | 1947 |
| R.P.S. Limited | Professional & scientific | 1973 |
| RA (Mechanical) Ltd | Professional & scientific | 2011 |
| RA2B Driving School Ltd | Education | 2020 |
| Radleigh Grange (Woodville) Management Company Limited | Households | 2004 |
| Radstone Road (Brackley) Management Company Limited | Households | 2014 |
| Railprocure Ltd | Professional & scientific | 2025 |
| Rainbow Waste Management (Holdings) Limited | Financial services | 2017 |
| Rainbow Waste Management Limited | Water & waste | 1998 |
| Rainbow West Street Ltd | Hospitality | 2025 |
| Raji Nithu Limited | Wholesale & retail | 2019 |
| Ramhalls Ltd | Administrative & support | 2009 |
| Rani Aesthetics Limited | Health & social care | 2025 |
| Rankin Plumbing and Heating Ltd | Construction | 2024 |
| Raven Kreativ Ltd | Manufacturing | 2024 |
| Ravened Limited | Administrative & support | 2019 |
| Ravensbourn Investment Holdings Ltd | Real estate | 2021 |
| Ravensbourn Limited | Other services | 1979 |
| Ravensbourn Logistic Holdings Ltd | Transport & logistics | 2021 |
| Ravensbourn Logistics Ltd | Transport & logistics | 2021 |
| Ravensbourn Plastic Holdings Ltd | Administrative & support | 2021 |
| RAW Business Trading AS Quickwork Ltd | Administrative & support | 2019 |
| RAW Crew Limited | Hospitality | 2021 |
| RAW Paws Pantry Ltd | Wholesale & retail | 2016 |
| Rawdon Construction Limited | Construction | 2021 |
| Rawdon Property Services Ltd | Real estate | 2022 |
| Rawman Project Services Limited | Professional & scientific | 2025 |
| RB Couriers Ltd | Transport & logistics | 2025 |
| RB Financial Consulting Limited | Professional & scientific | 2026 |
| RB Takeout Limited | Hospitality | 2022 |
| RB38 Ltd | Manufacturing | 2014 |
| RBS Contracting Limited | Manufacturing | 2025 |
| RBT Building Solutions Ltd | Real estate | 2022 |
| RCS Property Worx Ltd | Construction | 2025 |
| RDC Construction Services Ltd | Construction | 2020 |
| Re-Energize Electrical Ltd | Construction | 2026 |
| Reabrook Holdings Limited | Professional & scientific | 2015 |
| Reabrook Ltd | Manufacturing | 1964 |
| Reabrook Trustees Limited | Administrative & support | 2018 |
| Ready Republic Ltd | Wholesale & retail | 2025 |
| Real Media Group Ltd | Information & communication | 2018 |
| Rebarkers Ltd | Other services | 2026 |
| Rebellious Dragons Community Creators Limited | Arts & recreation | 2025 |
| Red FOX Scaffolding Ltd | Construction | 2026 |
| Red Pill Capital Ltd | Construction | 2023 |
| Red Room Media Ltd | Information & communication | 2020 |
| Redbloc Limited | Construction | 2016 |
| Redfern Homes Limited | Real estate | 2016 |
| Redhouse Advisory Ltd | Professional & scientific | 2025 |
| Redhouse Place Ltd | Professional & scientific | 2024 |
| Redland Estates Limited | Real estate | 2021 |
| Reed Composites Ltd | Other services | 2019 |
| Reflec Signs and Graphics Limited | Manufacturing | 2002 |
| Regal Routes Limited | Administrative & support | 2010 |
| Regents Park (NO.2) Management Company Limited | Households | 1995 |
| Regents Park Management Company Limited | Households | 1994 |
| Relevant Business Solutions Limited | Administrative & support | 2014 |
| Renaissance Hair Salon Ltd | Other services | 2015 |
| Renshaw Walton Ltd | Administrative & support | 2013 |