| Rapid Rehab Ltd | Health & social care | 2016 |
| Rapid Reliable Rides Ltd | Transport & logistics | 2022 |
| Rapid Sales Ltd | Wholesale & retail | 2024 |
| Rapid Tyre 247 Ltd | Wholesale & retail | 2025 |
| Rapidfresh Ltd | Wholesale & retail | 2024 |
| Rapido Logistics Limited | Transport & logistics | 2025 |
| Rapit Retail Ltd | Wholesale & retail | 2025 |
| Raptor Group UK Ltd | Wholesale & retail | 2025 |
| Rara Group Ltd | Financial services | 2022 |
| Rasca Transport Ltd | Transport & logistics | 2023 |
| Rascor UK Ltd | Construction | 2017 |
| Rash Accommodation Ltd | Real estate | 2026 |
| Rashaz Limited | Wholesale & retail | 2024 |
| Rashzz 1% Ltd | Professional & scientific | 2026 |
| Rasna Elixir Limited | Manufacturing | 2024 |
| Rastoo Limited | Hospitality | 2020 |
| Ratan Development Limited | Real estate | 2022 |
| Ratchit Solutions Limited | Information & communication | 2009 |
| Rated One Limited | Administrative & support | 2010 |
| Rathnakar IT Solutions Ltd | Information & communication | 2013 |
| Ratio Protocol Ltd. | Professional & scientific | 2009 |
| Ratiopus Limited | Wholesale & retail | 2024 |
| RAV Improvement Ltd | Construction | 2025 |
| RAV Realty Group Limited | Real estate | 2024 |
| Ravbrar Limited | Transport & logistics | 2023 |
| Ravi Freelancing Ltd | Wholesale & retail | 2026 |
| Ravinder SINGH1 Ltd | Construction | 2024 |
| Ravix Ltd | Wholesale & retail | 2026 |
| Ravstone Consultants Ltd | Construction | 2025 |
| Ravula Solutions Limited | Real estate | 2021 |
| RAW Management Ltd | Administrative & support | 2016 |
| RAW Roofing & Construction Ltd | Construction | 2022 |
| Rawan Investments Ltd | Real estate | 2025 |
| Rawstraw Realty Ltd | Construction | 2022 |
| RAY GAS and Plumbing Limited | Construction | 2023 |
| RAY Investment and Management Ltd | Real estate | 2021 |
| RAY Organic Limited | Wholesale & retail | 2020 |
| Rayantech Limited | Information & communication | 2019 |
| Rayat Investments Ltd | Professional & scientific | 2023 |
| Rayat Solicitors LLP | | 2007 |
| Raydom Engeneering Services Ltd | Construction | 2018 |
| Rayipudi Software Solutions Ltd | Information & communication | 2012 |
| Raylton S&T Testers Ltd | Manufacturing | 2012 |
| Rayner-Whitbread Ltd | Construction | 2020 |
| Rayners Consultants Ltd | Professional & scientific | 2021 |
| Rays Business Associates Limited | Professional & scientific | 2014 |
| Raysoft Digital Limited | Information & communication | 2017 |
| Rayton Ventures Ltd | Information & communication | 2025 |
| Rayyaan Services Limited | Transport & logistics | 2026 |
| RAZ Trade Ltd | Wholesale & retail | 2019 |
| Razas Direct Ltd | Construction | 2013 |
| Razmaks Retails Ltd | Wholesale & retail | 2021 |
| Razmaks Solution Ltd | Wholesale & retail | 2014 |
| RB (China Trading) Limited | Wholesale & retail | 2015 |
| RB Asia Holding Limited | Financial services | 2016 |
| RB Capital Group Ltd | Real estate | 2026 |
| RB Info and Media UK Ltd | Information & communication | 2024 |
| RB Luxembourg (2016) Limited | Financial services | 2016 |
| RB Luxembourg Holdings (Tffc) Limited | Manufacturing | 2014 |
| RB Mexico Investments Limited | Financial services | 2016 |
| RB Reigate (2019) Ltd. | Financial services | 2017 |
| RB UK Commercial Limited | Wholesale & retail | 2013 |
| RB UK Hygiene Home Commercial Limited | Wholesale & retail | 2018 |
| RB USA (2019) Ltd. | Financial services | 2017 |
| RBC Delivery Ltd | Transport & logistics | 2021 |
| RBC Envirowash Ltd | Hospitality | 2023 |
| RBC Profesional Services Ltd | Construction | 2025 |
| RBD Consultancy Services Limited | Administrative & support | 2022 |
| Rbevan Energy Certification Ltd | Real estate | 2020 |
| RBG Commercial Body Ltd | Wholesale & retail | 2019 |
| RBG Commercial Body Parts Ltd | Wholesale & retail | 2025 |
| RBG Property Services Limited | Administrative & support | 2015 |
| Rbkc Inventories Limited | Real estate | 2017 |
| Rbrowndesigns Ltd | Construction | 2025 |
| RC Braganca Limited | Wholesale & retail | 2025 |
| RC Couriers Ltd | Transport & logistics | 2014 |
| RCB Logistics Limited | Administrative & support | 2017 |
| RCG Trans Ltd | Transport & logistics | 2017 |
| RCM Grading Ltd | Administrative & support | 2017 |
| RCR Legal Limited | Real estate | 2017 |
| RCR Ventures Limited | Hospitality | 2026 |
| RCS (CAD) Ltd | Information & communication | 2011 |
| RCS (UK) Ltd | Other services | 2012 |
| Rctt Ltd | Information & communication | 2025 |
| RD Optical Ltd | Health & social care | 2019 |
| RD Restaurants Ltd | Hospitality | 2023 |
| Rdcjw Ltd | Wholesale & retail | 2024 |
| RDG MAG Ltd | Transport & logistics | 2018 |
| RDK Group Limited | Wholesale & retail | 2025 |
| RDW Engineering Ltd | Wholesale & retail | 2016 |
| Re-Nu Builders Limited | Construction | 2015 |
| Re-Orient Ltd | Real estate | 2016 |
| Reach for Greatness Limited | Education | 2016 |
| Reach Outstanding Ltd | Professional & scientific | 2020 |
| Reachxpro Ltd | Professional & scientific | 2025 |
| Read Rest Retreat Ltd | Other services | 2025 |
| Reading Chamber of Commerce Limited | Other services | 2011 |
| Reading Foods Ltd | Construction | 2019 |
| Ready 2 Drive Academy Ltd | Education | 2018 |
| Ready Care Services (Kent) Limited | Health & social care | 2022 |