| Rawuk Ltd | Education | 2024 |
| RAY Pillinger Alloys Limited | Wholesale & retail | 2006 |
| Ray's Electrics Ltd | Construction | 2026 |
| Ray's Fitting Services Ltd | Professional & scientific | 2020 |
| Ray's Restaurant Group Ltd | Hospitality | 2026 |
| Ray-Lewis Opticians Limited | Health & social care | 2014 |
| Rayaan RX Limited | Health & social care | 2021 |
| Rayaan Solution Ltd | Administrative & support | 2025 |
| Rayal Brothers Enterprise Ltd | Financial services | 2024 |
| Raybould Properties Limited | Real estate | 2018 |
| Raydan Wicker Ltd | Hospitality | 2025 |
| Rayian Developments (Upperthorpe) Ltd | Construction | 2022 |
| Rayian Developments Ltd | Construction | 2022 |
| Rayne Media Ltd | Professional & scientific | 2021 |
| Rayner Estimating Solutions Limited | Professional & scientific | 2024 |
| Rayrgs Ltd | Professional & scientific | 2017 |
| Raystan Limited | Professional & scientific | 2019 |
| Raytek Scientific Limited | Information & communication | 1989 |
| RAZ Barbers S6 Ltd | Other services | 2024 |
| Razanga Trading Limited | Wholesale & retail | 2022 |
| Raze Sound Ltd | Administrative & support | 2023 |
| Razhan Food Ltd | Wholesale & retail | 2025 |
| Razk Traders Ltd | Wholesale & retail | 2022 |
| Razoo Ltd | Financial services | 2026 |
| Razor Barber S21 Limited | Other services | 2024 |
| Razor Ltd | Information & communication | 2009 |
| Razvi Transport Ltd | Transport & logistics | 2025 |
| Razzaq & Co. (Accountants) Ltd | Professional & scientific | 2023 |
| Razzaq & Co. (UK) Ltd | Professional & scientific | 2017 |
| Razzo Limited | Wholesale & retail | 2017 |
| RB & RB Holdings Limited | Financial services | 2023 |
| RB & RB Limited | Financial services | 2018 |
| RB Access Limited | Other services | 2016 |
| RB Building and Landscaping Ltd | Administrative & support | 2012 |
| RB Business Finance Ltd | Financial services | 2019 |
| RB Connect Holdings Limited | Financial services | 2020 |
| RB Food Development Ltd | Professional & scientific | 2016 |
| RB Haulage & Salvage Ltd | Transport & logistics | 2012 |
| RB Medical Services U.K. Ltd | Health & social care | 2023 |
| RB Professional Property Services Ltd | Real estate | 2021 |
| RB Properties & Deal Sourcing Ltd | Real estate | 2023 |
| RB Technical Consulting Ltd | Information & communication | 2026 |
| RBA Partners Ltd | Professional & scientific | 2022 |
| Rban Architecture Ltd | Professional & scientific | 2018 |
| RBC Lawley Ltd | Hospitality | 2023 |
| RBC Roofing Limited | Construction | 2018 |
| RBD Design Ltd | Professional & scientific | 2011 |
| RBE Chelmsley Ltd | Hospitality | 2023 |
| Rbfr Ltd | Hospitality | 2023 |
| RBH Devco Ltd | Construction | 2018 |
| RBH Developments Ltd | Construction | 2023 |
| RBH Dinnington Ltd | Real estate | 2016 |
| RBH M2 Ltd | Real estate | 2021 |
| RBH M3 Ltd | Real estate | 2021 |
| RBH Marco Ltd | Real estate | 2019 |
| RBH NO1 Ltd | Real estate | 2016 |
| RBH NO2 Ltd | Real estate | 2017 |
| RBH NO3 Ltd | Real estate | 2019 |
| RBH Properties Ltd | Real estate | 2021 |
| RBK Maintenance Limited | Construction | 2025 |
| RBP Fitness Ltd | Education | 2022 |
| RBP Holdco Limited | Financial services | 2023 |
| RBR Care Limited | Health & social care | 2022 |
| RBR Stay Limited | Real estate | 2019 |
| RBS Development Group Limited | Construction | 2023 |
| RBS Timber Ltd | Water & waste | 2025 |
| RBS Yorkshire Limited | Construction | 2025 |
| RC & NC Ltd | Real estate | 2017 |
| RC Aesthetics Ltd | Health & social care | 2017 |
| RC Burngreave Ltd | Wholesale & retail | 2025 |
| RC Canine’S and Equine’S Limited | Administrative & support | 2026 |
| RC Darnall Ltd | Wholesale & retail | 2024 |
| RC Deansgate Ltd | Wholesale & retail | 2025 |
| RC Distribution Centre Ltd | Wholesale & retail | 2022 |
| RC Firth Park Ltd | Wholesale & retail | 2022 |
| RC Franchise Ltd | Administrative & support | 2021 |
| RC Headquarters Ltd | Professional & scientific | 2025 |
| RC Hillsborough Ltd | Wholesale & retail | 2022 |
| RC Leeds Ltd | Wholesale & retail | 2025 |
| RC Leicester Limited | Wholesale & retail | 2025 |
| RC Liverpool Ltd | Wholesale & retail | 2024 |
| RC Logistics Services Ltd | Transport & logistics | 2026 |
| RC London Road Ltd | Wholesale & retail | 2023 |
| RC Rotherham Ltd | Wholesale & retail | 2024 |
| RC Spital Hill Ltd | Wholesale & retail | 2022 |
| RC Surveying (Yorks) Ltd | Professional & scientific | 2022 |
| RCB Projects Limited | Professional & scientific | 2025 |
| RCK9'S and Equine's Limited | Other services | 2024 |
| RCM Engineering Limited | Administrative & support | 1995 |
| Rcnet Ltd | Wholesale & retail | 2019 |
| Rctw Beauty Ltd | Other services | 2018 |
| RD Elite Propertyies Ltd | Real estate | 2025 |
| RD MEP Management Ltd | Professional & scientific | 2024 |
| RD Recovery & Rescue Ltd | Wholesale & retail | 2025 |
| RD Ropes Limited | Professional & scientific | 2018 |
| RD Shelley Construction Ltd | Construction | 2026 |
| RD8 Group Ltd | Arts & recreation | 2023 |
| RDB Estates Limited | Real estate | 2015 |
| RDI Urology Ltd | Health & social care | 2022 |
| RDJ Developments Limited | Construction | 2019 |