| Rapidxpress Logistics Ltd | Transport & logistics | 2025 |
| Rapio Transport Ltd | Transport & logistics | 2018 |
| Rari Nantes Ltd | Arts & recreation | 2024 |
| Rathnamagh Property Ltd | Real estate | 2018 |
| Ratnams (PVT) Limited | Wholesale & retail | 2018 |
| RAW Digital (North) Ltd | Information & communication | 2022 |
| RAW Events (Yorkshire) Ltd | Other services | 2018 |
| RAW Workspaces Ltd | Real estate | 2023 |
| Rawdon Care Ltd | Health & social care | 2021 |
| Rawmarsh Foods Limited | Professional & scientific | 1973 |
| Rayat Property Developments Ltd | Real estate | 2021 |
| Rayner Developments Limited | Real estate | 2024 |
| Rayner Marketing (Holdings) Limited | Other services | 1980 |
| Rayr Properties Limited | Real estate | 2025 |
| Razl Ltd | Professional & scientific | 2024 |
| RB Accountants Limited | Professional & scientific | 2024 |
| RB Automotive Limited | Wholesale & retail | 2024 |
| RB Ceramic Tiling Ltd | Construction | 2023 |
| RB Racing Ltd | Transport & logistics | 2024 |
| RB Refinishing Ltd | Manufacturing | 2019 |
| RBP Services Ltd | Wholesale & retail | 2016 |
| RBP Total Solutions Ltd | Construction | 2026 |
| RBS Catering Solutions Ltd | Hospitality | 2022 |
| RC Desserts Ltd | Wholesale & retail | 2020 |
| RC Elements Limited | Wholesale & retail | 2018 |
| RC Property Leeds Ltd | Financial services | 2022 |
| RCA Transport International Services Ltd | Transport & logistics | 2019 |
| RCC (Yorkshire) Limited | Other services | 2009 |
| Rccn Limited | Households | 2012 |
| RCE Services (GC) Ltd | Construction | 2020 |
| Rclo Consulting Ltd | Professional & scientific | 2021 |
| Rcruzoneill Ltd | Information & communication | 2018 |
| RD Murray Properties Ltd | Real estate | 2025 |
| RDG Properties Ltd | Real estate | 2024 |
| RDS Quality Furniture Ltd | Manufacturing | 2016 |
| RE Project Management Training Ltd | Education | 2011 |
| REA Consult Limited | Construction | 2026 |
| Reach Insight Ltd | Information & communication | 2021 |
| Reach to Clean Window Cleaning Ltd | Administrative & support | 2024 |
| React Diamond Drilling Limited | Other services | 2014 |
| Readco 187 Limited | Professional & scientific | 1998 |
| Readco 195 Limited | Manufacturing | 1999 |
| Ready AI Group Ltd | Extraterritorial | 2026 |
| Real Estate Asset Limited | Professional & scientific | 2006 |
| Real Estate Development & Services Ltd. | Real estate | 2013 |
| Real Estate Investment Group Holdings Limited | Financial services | 2026 |
| Real Estate Investments Group 1 Limited | Real estate | 2020 |
| Real Estate Investments Group 2 Limited | Real estate | 2021 |
| Real Estate Investments Group 3 Limited | Real estate | 2021 |
| Real Estate Investments Group 4 Limited | Real estate | 2022 |
| Real Estate Investments Group 5 Limited | Real estate | 2022 |
| Real Estate Investments Group 6 Limited | Real estate | 2024 |
| Real Estate Investments Group 7 Limited | Real estate | 2026 |
| Real Estate Investments Group Limited | Real estate | 2018 |
| Real Estate Investments(Uk) Limited | Real estate | 2016 |
| Real Milenium Consulting Ltd | Transport & logistics | 2024 |
| Real Plumbing Limited | Construction | 2026 |
| Realisations 5903 Limited | Water & waste | 1943 |
| Reat Limited | Wholesale & retail | 2007 |
| Rebel Workspace Ltd | Real estate | 2025 |
| Rebellious Dance Promotions Ltd | Arts & recreation | 2025 |
| Recent Beans Ltd | Manufacturing | 2020 |
| Reclaim Software Solutions Limited | Information & communication | 2022 |
| Recovered Rewards Ltd | Wholesale & retail | 2019 |
| Recruita Limited | Administrative & support | 2012 |
| Recruitevents Ltd | Administrative & support | 2023 |
| Recruitment Rectified Ltd | Administrative & support | 2025 |
| Red FLY Investments Limited | Real estate | 2013 |
| Red Goose Ltd | Extraterritorial | 2014 |
| Red HUT Systems Limited | Information & communication | 2007 |
| Red Media (Europe) Limited | Manufacturing | 2006 |
| Red Planet Properties Limited | Real estate | 2011 |
| Red Season 888 Ltd | Hospitality | 2024 |
| Redback Locum Services Limited | Health & social care | 2010 |
| Redbeck Shooting Supplies Limited | Wholesale & retail | 2009 |
| Redbourne Investments Limited | Real estate | 1997 |
| Reddy Brothers Ltd. | Hospitality | 2025 |
| Redemption Physiotherapy Ltd | Other services | 2024 |
| Redev Holdings Ltd | Financial services | 2022 |
| Redev Limited | Information & communication | 2000 |
| Redgard Inns Ltd | Hospitality | 2024 |
| Redline Consultants Ltd | Professional & scientific | 2019 |
| Redmire Property Limited | Real estate | 1999 |
| Redmond R. M. Properties Limited | Wholesale & retail | 2005 |
| Redroots Lettings Ltd | Real estate | 2022 |
| Redroots Property Ltd | Real estate | 2022 |
| Redrox Quarry Products Limited | Wholesale & retail | 1995 |
| Redsoft Ltd | Health & social care | 2016 |
| Redsoft Properties Limited | Real estate | 2021 |
| Redusoft Limited | Information & communication | 2005 |
| Redwood (Yorkshire) Holdings Ltd | Financial services | 2025 |
| Redwood CAB Drive Ltd | Transport & logistics | 2025 |
| Redwood Travel Ltd | Transport & logistics | 2017 |
| Reece & Douglas Building Solutions Ltd | Manufacturing | 2026 |
| Reemash Ltd | Wholesale & retail | 2024 |
| Reeson Homes Ltd | Construction | 2014 |
| Reformeroom Limited | Arts & recreation | 2025 |
| Refresh U Group Limited | Hospitality | 2022 |
| Regal Properties Skipton Limited | Real estate | 2023 |
| Regan Plant Hire Limited | Administrative & support | 2006 |