| Ridgard Enterprises Limited | Hospitality | 2025 |
| Ridge Education Limited | Health & social care | 2016 |
| Ridgeline Structural Consultancy Ltd | Professional & scientific | 2023 |
| Riesgo Health and Safety Solutions Ltd | Other services | 2020 |
| Rift Collective Ltd | Wholesale & retail | 2026 |
| Riga Global Business Limited | Education | 2025 |
| Right Choice Property Limited | Real estate | 2015 |
| Right Light House Ltd | Construction | 2015 |
| Right NOW Contracting Ltd | Construction | 2011 |
| Right Sports Limited | Wholesale & retail | 2005 |
| Right-Way Windows Limited | Construction | 2024 |
| Rightgreenrecycle Limited | Other services | 2015 |
| Righthaus Properties Ltd | Real estate | 2018 |
| Rightpath Property Solutions Limited | Administrative & support | 2026 |
| Rightrack Civils Ltd | Construction | 2021 |
| Rights for ALL Limited | Other services | 2018 |
| Rightway Venture Ltd | Other services | 2025 |
| Rihla Travel Ltd | Administrative & support | 2025 |
| Rijax Homes Ltd | Real estate | 2025 |
| Rijo Properties Ltd | Real estate | 2026 |
| Riltej Business Concept Limited | Wholesale & retail | 2022 |
| Rimito Limited | Financial services | 2026 |
| Rimmington Estates Ltd | Real estate | 2012 |
| Rimmingtons Enterprises Limited | Wholesale & retail | 2009 |
| Rimmingtons Group Ltd | Financial services | 2024 |
| Rimrose Valley Car Sales Limited | Wholesale & retail | 2016 |
| Rinan UK Ltd | Wholesale & retail | 2023 |
| Ring 4 Cars Ltd | Administrative & support | 2024 |
| Ringby Plant Hire Limited | Administrative & support | 2010 |
| Ringrose Consulting Limited | Professional & scientific | 2012 |
| Ripley and District Agricultural and Horticultural Society Ltd | Arts & recreation | 2013 |
| Ripling Engineering Limited | Manufacturing | 1973 |
| Ripple Technology Solutions Limited | Information & communication | 2013 |
| Rise & Spice Ltd | Hospitality | 2025 |
| Rise Dance Ltd | Arts & recreation | 2014 |
| Rise UP Music Ltd | Information & communication | 2025 |
| Rishworth Holdings Ltd | Construction | 2024 |
| Rising Main Services Ltd | Administrative & support | 2023 |
| Rising Stars Tutoring Limited | Education | 2023 |
| Riskabate Ltd | Construction | 2019 |
| Riskivo Limited | Information & communication | 2026 |
| Ritual Skin & Beauty Limited | Other services | 2017 |
| Rituonline Ltd | Wholesale & retail | 2018 |
| Rivanta Care Group Ltd | Health & social care | 2026 |
| River Fortune Ltd | Construction | 2019 |
| Riverside Design Studio Limited | Professional & scientific | 2012 |
| Riverside Driveways Limited | Construction | 2025 |
| Riverside Management (SHF) Limited | Real estate | 2020 |
| Rivotox Limited | Wholesale & retail | 2026 |
| Riwaj Weddings Ltd | Administrative & support | 2021 |
| RIX Haulage Ltd | Transport & logistics | 2024 |
| RIX Traiding Ltd | Wholesale & retail | 2024 |
| Riya Home Ltd | Wholesale & retail | 2026 |
| Riyadh Developments Limited | Real estate | 2003 |
| Riyadh Property Investments Limited | Households | 2025 |
| Riyanth Limited | Wholesale & retail | 2025 |
| RIZ Enterprise Ltd | Transport & logistics | 2020 |
| Rizqhub Ltd | Wholesale & retail | 2025 |
| Rizvi & Co Accountancy Limited | Professional & scientific | 2025 |
| Rizvi Accountants Limited | Professional & scientific | 2023 |
| Rizvi Jewellers Ltd | Wholesale & retail | 2026 |
| Rizwans Food Ltd | Hospitality | 2025 |
| RJ Dream Properties Ltd | Real estate | 2024 |
| RJ Foods BFD Limited | Manufacturing | 2024 |
| RJ Foods Halifax Limited | Hospitality | 2025 |
| RJ Foods Leeds Limited | Hospitality | 2025 |
| RJ Foods Leeds Road Limited | Hospitality | 2025 |
| RJ Foods MCR Limited | Hospitality | 2025 |
| RJ Foods Midlands Ltd | Hospitality | 2025 |
| RJ Free Eco Grants Ltd | Manufacturing | 2021 |
| RJ Garden Maintenance Limited | Administrative & support | 2014 |
| RJ Jeweller Ltd | Wholesale & retail | 2025 |
| RJ Property Rental Ltd | Real estate | 2021 |
| RJ Yates Property Limited | Real estate | 2025 |
| RJA Automotive Solutions Ltd | Wholesale & retail | 2025 |
| Rjjg Properties Ltd | Real estate | 2023 |
| RJL Building Services Ltd | Construction | 2026 |
| RJM Group Holdings Ltd | Real estate | 2024 |
| RJQ BFD Ltd | Hospitality | 2024 |
| RJR Property Limited | Administrative & support | 2017 |
| RJS Services (Yorkshire) Ltd | Construction | 2022 |
| Rjst GH Limited | Hospitality | 2025 |
| Rjst HFX Limited | Hospitality | 2025 |
| Rjst Khly Limited | Hospitality | 2025 |
| Rjst Leeds Limited | Hospitality | 2025 |
| Rjst LR Limited | Hospitality | 2025 |
| Rjst Old Limited | Hospitality | 2025 |
| RJT Detailing Limited | Professional & scientific | 2015 |
| RJW Fleet Consulting Ltd | Administrative & support | 2012 |
| RK & Properties Limited | Real estate | 2025 |
| RK Accountants & Tax Advisors Ltd | Professional & scientific | 2019 |
| RK Accountants, Business & Tax Advisors Limited | Real estate | 2016 |
| RK Automobile Ltd | Wholesale & retail | 2024 |
| RK Delights Limited | Manufacturing | 2026 |
| RK Investment Group Ltd | Real estate | 2024 |
| RK Livestock Ltd | Wholesale & retail | 2021 |
| RK Motorsports Ltd | Wholesale & retail | 2025 |
| RK Rauf Ltd | Wholesale & retail | 2025 |
| RK Star Ltd | Wholesale & retail | 2017 |
| RKA Optics Limited | Health & social care | 2018 |