| Ranby Road Limited | Construction | 2026 |
| Random Surfer Ltd | Information & communication | 2014 |
| Randon Consulting Limited | Professional & scientific | 2003 |
| Rania Barbers Group Limited | Other services | 2021 |
| RAP Properties Yorkshire Limited | Real estate | 2019 |
| Rapid Response Telecoms Ltd | Construction | 2018 |
| Rapid Response Traffic Management Limited | Information & communication | 2024 |
| Rapid Response Training Academy Limited | Education | 2025 |
| Rapidroadrecovery Ltd | Transport & logistics | 2025 |
| Rasi's Premier Store Ltd | Wholesale & retail | 2025 |
| Raspberry Flamingo Ltd | Administrative & support | 2019 |
| Raspberry Lettings Limited | Real estate | 2011 |
| Ratcliff & Roper (Holdings) Ltd | Financial services | 2007 |
| Rathdown Properties Ltd | Real estate | 2003 |
| RAW Electrical Group Ltd | Construction | 2019 |
| RAW Potential Property Ltd | Construction | 2026 |
| Rawson & SON Ltd | Construction | 2015 |
| Rayan Pizza Ltd | Hospitality | 2025 |
| Raylight Services Ltd | Wholesale & retail | 2018 |
| Razvix Ltd | Transport & logistics | 2024 |
| RB Builders Yorkshire Ltd | Construction | 2024 |
| RB Construction Management Limited | Administrative & support | 2017 |
| RB Scaffold Ltd | Construction | 2026 |
| RB. Thompson Properties Ltd | Real estate | 2024 |
| RBB Building & Construction Ltd | Construction | 2026 |
| Rbet Limited | Transport & logistics | 2016 |
| Rbit Consulting Ltd | Information & communication | 2021 |
| RBK Property Developments Ltd | Real estate | 2025 |
| RC Graphix Limited | Professional & scientific | 2012 |
| RC LAB Consultancy Ltd | Professional & scientific | 2026 |
| RC PUB Ltd | Real estate | 2021 |
| RC599 T/A RC Services Ltd | Transport & logistics | 2018 |
| Rcds (Yorkshire) Limited | Transport & logistics | 2013 |
| RCE Limited | Real estate | 2019 |
| RCH Engineering (Yorks) Ltd | Professional & scientific | 2025 |
| RCI (Mechanical) Ltd | Manufacturing | 2025 |
| RCM Imaging Ltd | Other services | 2021 |
| RD Hill (Chemist) Limited | Wholesale & retail | 2010 |
| RDA Holdings Limited | Professional & scientific | 2019 |
| Rdhm Limited | Construction | 2011 |
| RDW Haulage Limited | Transport & logistics | 2025 |
| Re-Developments Ltd | Construction | 2023 |
| REA Site Services Ltd. | Manufacturing | 2012 |
| Real Quick Media Ltd | Professional & scientific | 2023 |
| Real World Dog Training Limited | Administrative & support | 2025 |
| Realmheights Limited | Real estate | 1988 |
| Rebecca Baker Family Law Ltd | Professional & scientific | 2024 |
| Rebecca Singleton’S School of Dance Ltd | Arts & recreation | 2023 |
| Recruitment Pro Ltd | Administrative & support | 2021 |
| Red Arrow Electrical Limited | Wholesale & retail | 2019 |
| Red Diamond Executive Head Hunters Ltd | Professional & scientific | 2011 |
| Red Diamond Holdings Ltd | Financial services | 2021 |
| Red Diamond Recruitment Ltd | Administrative & support | 2021 |
| Red Dog Linings Limited | Manufacturing | 1989 |
| Red Dragon WU Ltd | Hospitality | 2025 |
| Red FOX Training Ltd | Arts & recreation | 2025 |
| Red Power Parts Limited | Wholesale & retail | 2026 |
| Red Shop Oakwell Ltd | Hospitality | 2023 |
| Red TIE Consultancy Limited | Real estate | 2010 |
| Redbrook Electrical Services Ltd | Construction | 2023 |
| Redbrook Finance Limited | Wholesale & retail | 2014 |
| Reddie Properties Ltd | Extraterritorial | 2025 |
| Redefine HQ Ltd | Other services | 2024 |
| Redefine HQ Training Academy Ltd | Education | 2025 |
| Redefine Management Ltd | Professional & scientific | 2021 |
| Redgate Engineering Limited | Professional & scientific | 2006 |
| Redline Trackdays Limited | Arts & recreation | 2015 |
| Redliongreno Ltd | Hospitality | 2025 |
| REDROBOT99 Limited | Arts & recreation | 2018 |
| Reed's Property Group Ltd | Real estate | 2022 |
| Reeve Cook Properties Limited | Real estate | 2006 |
| Ref-Vision Limited | Information & communication | 2024 |
| Referbedit Ltd | Wholesale & retail | 2026 |
| Refined Hydroponics Ltd | Manufacturing | 2024 |
| Reflective Development Counselling Space Community Interest Company | Health & social care | 2026 |
| Reflexshift Limited | Real estate | 1995 |
| REG Property Holdings Limited | Real estate | 2020 |
| Regaldon UK Ltd | Transport & logistics | 2008 |
| Regency Wealth Management Limited | Financial services | 2024 |
| Regenix Therapies Ltd | Health & social care | 2024 |
| Regent 1965 Limited | Extraterritorial | 2014 |
| Regent Street Advisers Ltd | Financial services | 2016 |
| Regent Street Commercial Brokers Ltd | Financial services | 2019 |
| Reggie Rawlinson Rentals Ltd | Real estate | 2025 |
| Reggies Recoveries Ltd | Transport & logistics | 2021 |
| Regional Home Buyers Limited | Real estate | 2013 |
| Reglaze Windows & Doors Ltd | Construction | 2024 |
| Regorco Limited | Extraterritorial | 1971 |
| Reinforcement Supplies Barnsley Limited | Wholesale & retail | 2024 |
| Reinvention Aesthetics Medical Staffing Limited | Health & social care | 2019 |
| REJUVEN8-2 Limited | Other services | 2025 |
| Rekutt Design Ltd | Professional & scientific | 2018 |
| Remedi-Restorative Services | Other services | 2001 |
| Remora Electrical Limited | Manufacturing | 1973 |
| Renaissance Consultancy Limited | Administrative & support | 2011 |
| Renats Logistics Ltd | Transport & logistics | 2026 |
| Rengreen Property Limited | Real estate | 2020 |
| Renovate Yorkshire Ltd | Construction | 2017 |
| Renown PR Ltd | Professional & scientific | 2025 |
| Renowned JIU Jitsu Barnsley Limited | Education | 2023 |