| Rick Coates Music Limited | Administrative & support | 2012 |
| Rieves Games Limited | Administrative & support | 2025 |
| Rieves Lotteries Limited | Professional & scientific | 2011 |
| Risk & Quality Management Limited | Financial services | 2017 |
| Risk Alliance Solutions Ltd | Financial services | 2020 |
| Riverwood Homes Limited | Construction | 2004 |
| Riverwood Property Holdings Limited | Real estate | 2021 |
| RJ Brand Design Ltd | Professional & scientific | 2019 |
| RJ Lakin & Company Ltd | Professional & scientific | 2014 |
| RJ Tree Services Limited | Professional & scientific | 2015 |
| RJB Haulage Limited | Transport & logistics | 2017 |
| RJP Tree & Landscape Services Ltd | Administrative & support | 2025 |
| RKL Developers Limited | Hospitality | 2011 |
| RKL Retail Ltd | Hospitality | 2017 |
| RKL Ventures Limited | Hospitality | 2004 |
| RL Equity Limited | Professional & scientific | 2024 |
| RL People Limited | Administrative & support | 2017 |
| ROB HAY Ltd | Professional & scientific | 2026 |
| Robcad Limited | Arts & recreation | 2017 |
| Robert Millerchip Designs Limited | Professional & scientific | 1997 |
| Roberts Pain Management Limited | Health & social care | 2012 |
| Robinson & Co Carpentry Ltd | Construction | 2023 |
| Robotics and Autonomous Systems Advisory Ltd | Professional & scientific | 2024 |
| Robsco Solutions Limited | Wholesale & retail | 2012 |
| Rocket Auctions Ltd | Real estate | 2022 |
| Rockford Associates Limited | Professional & scientific | 2012 |
| Rockingham Agriculture Limited | Real estate | 1982 |
| Rockingham Cleanscapes Limited | Administrative & support | 2023 |
| Rockingham Interior Finishes Ltd | Construction | 2025 |
| Rockingham Property Management Limited | Real estate | 1975 |
| Rockingham PUB Co Ltd | Hospitality | 2025 |
| Rockridge Properties Limited | Construction | 2002 |
| Rocksalt Bistro Limited | Hospitality | 2014 |
| ROD & Buckler Consulting Limited | Information & communication | 2025 |
| Rogers & Co Estate Agents Ltd | Real estate | 2018 |
| Rolegg Limited | Wholesale & retail | 1962 |
| Romway Contractors Limited | | 1972 |
| Roof Giant Limited | Wholesale & retail | 2018 |
| Roofbase Group Limited | Wholesale & retail | 2013 |
| Roofbase Limited | Wholesale & retail | 2016 |
| Roofbase North Limited | Wholesale & retail | 2026 |
| Room 17 Menswear Ltd | Wholesale & retail | 2022 |
| Root to Bloom Ltd | Education | 2021 |
| Rosal Property Ltd | Real estate | 2026 |
| Rosewood Theatre Company Ltd | Arts & recreation | 2023 |
| Rouncey Ltd | Wholesale & retail | 2023 |
| Rounded Edge Ltd | Information & communication | 2023 |
| Roundtable Projects Ltd | Construction | 2018 |
| Routes and Wings : Travel With JB Ltd | Administrative & support | 2025 |
| ROY Davies Marketing Limited | Wholesale & retail | 1990 |
| Royle Lettings Limited | Real estate | 2021 |
| RP Retail Consulting Limited | Professional & scientific | 2025 |
| RPM Health Academy Ltd | Education | 2025 |
| RPM Health Leicester Ltd | Health & social care | 2025 |
| RPM Health Ltd | Health & social care | 2019 |
| RPM Health Market Harborough Ltd | Health & social care | 2025 |
| Rrokaj Investment Ltd | Real estate | 2024 |
| Rrokaj Properties Limited | Real estate | 2017 |
| RS Watson Limited | Professional & scientific | 2023 |
| RST Midlands Ltd | Extraterritorial | 2026 |
| RTS Holdings Group Ltd | Financial services | 2021 |
| Rubitek Solutions Limited | Information & communication | 2018 |
| Ruby Dredge Limited | Hospitality | 2010 |
| Ruddle Transport Holdings Ltd | Transport & logistics | 2019 |
| Ruddle Transport Solutions Limited | Transport & logistics | 2015 |
| Ruffles (Market Harborough) Limited | Hospitality | 2025 |
| Rugby Centurions Foundation | Education | 2019 |
| Rugby Centurions Limited | Arts & recreation | 2018 |
| Ruko Tool UK Limited | Administrative & support | 2011 |
| Rumbers Limited | Administrative & support | 2008 |
| Rushford Properties Ltd | Financial services | 2025 |
| Russell Cade Investments Limited | Administrative & support | 2010 |
| Russell Francis of Market Harborough Limited | Wholesale & retail | 2003 |
| Ruston Holdings Ltd | Households | 2016 |
| Rutland and Stamford Memorials Limited | Construction | 2013 |
| Rutland Cricket Centre Ltd | Arts & recreation | 2020 |
| Rutland Dodgeball Ltd | Arts & recreation | 2024 |
| Rutland Energy Co Limited | Professional & scientific | 2011 |
| Rutland Property Co Limited | Other services | 2011 |
| Rutland Property Lettings Ltd | Real estate | 2025 |
| Ryall Commercial Limited | Information & communication | 2023 |
| RYS Cuisine Limited | Hospitality | 2023 |
| Ryse Fitness Limited | Arts & recreation | 2025 |
| S and B Cuisine Ltd | Hospitality | 2025 |
| S J Watts Limited | Manufacturing | 2004 |
| S T Car Repairs Limited | Wholesale & retail | 2011 |
| S&F Incorporations Limited | Real estate | 2018 |
| SA Property Experts Ltd | Extraterritorial | 2016 |
| Saala Limited | Education | 2021 |
| Sabin Consulting Engineers Ltd | Professional & scientific | 2011 |
| Safe Care Agency Ltd | Administrative & support | 2023 |
| Sagorika Restaurant Limited | Hospitality | 2025 |
| Sagwa Limited | Information & communication | 2025 |
| Saint Ranger Limited | Arts & recreation | 2014 |
| Saint Salons (Birmingham) Limited | Other services | 2013 |
| Sallie Wood Limited | Households | 2002 |
| Saltburn Tech Limited | Information & communication | 2024 |
| SAM T Engineering Ltd | Professional & scientific | 2018 |
| Samantha Helps Ltd | Administrative & support | 2025 |
| Sanderson Tree Care Ltd | Agriculture & fishing | 2023 |