| R&D Subco Limited | Manufacturing | 2026 |
| R.E.Firth (Groundworks) Limited | Construction | 2002 |
| R.S.P. Property Services Ltd | Real estate | 2022 |
| R3VIVE Design Ltd | Administrative & support | 2009 |
| RA Transport (Yorkshire) Ltd | Transport & logistics | 2024 |
| Rachel Childs Property Services Limited | Real estate | 2017 |
| Rack Store Limited | Administrative & support | 2010 |
| Rackall Limited | Construction | 2026 |
| Radiology Education Limited | Education | 2022 |
| Radko Services Limited | Construction | 2021 |
| Railway Design Management Limited | Professional & scientific | 1996 |
| Raise the Baaa Ltd. | Real estate | 2019 |
| RAJ Transport (Holdings) Limited | Financial services | 2014 |
| RAJ Transport Limited | Extraterritorial | 1992 |
| Randall Accountants Ltd | Professional & scientific | 1984 |
| Rapid Business Supplies Limited | Wholesale & retail | 2023 |
| Rapyal Group Holdings Ltd | Financial services | 2021 |
| Rapyal Realty Ltd | Real estate | 2025 |
| Raven Sheet Metal Co. Limited | Manufacturing | 1975 |
| Raven Sheet Metal Holdings Limited | Financial services | 2026 |
| RAW Essentials Limited | Wholesale & retail | 2012 |
| Rawson Security Ltd | Administrative & support | 2012 |
| RAY RAY CH1 Limited | Wholesale & retail | 2021 |
| RAY RAY Limited | Wholesale & retail | 2021 |
| RDR Couriers Limited | Transport & logistics | 2015 |
| RDS Financial Planning Ltd | Financial services | 2021 |
| Reach Education Support Services Limited | Administrative & support | 2016 |
| Recip Compressor Services Limited | Manufacturing | 2016 |
| Recon Gearboxes Limited | Wholesale & retail | 2013 |
| Red Kite Construction Limited | Construction | 2004 |
| Redfearn Construction Limited | Construction | 2017 |
| Redfearn Farming Limited | Agriculture & fishing | 2018 |
| Redg Developments Ltd | Construction | 2026 |
| Redwall Creative Design Limited | Professional & scientific | 2021 |
| Reem Clothing Limited | Wholesale & retail | 2016 |
| REG. Naylor (Liversedge) Limited | Transport & logistics | 1975 |
| Regency Cleaning Services (Nationwide) Ltd. | Administrative & support | 2007 |
| Regent Fire Consultants Limited | Public administration | 2019 |
| Regionaltextiles Limited | Wholesale & retail | 2023 |
| Rehaish Limited | Real estate | 2019 |
| Reid HR Consultancy Ltd | Administrative & support | 2025 |
| Reis K & Co Ltd | Other services | 2019 |
| Relentless Pursuit Ltd | Arts & recreation | 2025 |
| Reliance Analytical LLP | | 2012 |
| Remdar Ltd | Real estate | 2015 |
| Renew Windows Ltd | Construction | 2016 |
| Renewable Energy Experts Ltd | Construction | 2022 |
| Renewi (Yorkshire) Ltd | Construction | 2024 |
| Renewi Scaffolding Ltd | Construction | 2024 |
| Renoster Risk Limited | Financial services | 2019 |
| Resilience for Tomorrow CIC | Information & communication | 2025 |
| Resinx Ltd | Wholesale & retail | 2024 |
| Resolv Technology Limited | Information & communication | 2025 |
| Resolve Initiative Limited | Professional & scientific | 2021 |
| Respekt Ltd | Arts & recreation | 2019 |
| Retro Green Solutions Ltd | Construction | 2024 |
| Retrobuzz Ltd | Manufacturing | 2025 |
| RFT Solutions Limited | Professional & scientific | 2024 |
| RHA Used Trucks Limited | Extraterritorial | 2023 |
| Rhelo Limited | Professional & scientific | 2025 |
| Rhino Yorkshire Limited | Manufacturing | 2024 |
| Rhodes Engineering Holdings Ltd | Financial services | 2024 |
| Richard Mark Ltd | Wholesale & retail | 2025 |
| Richard Miles Ltd | Manufacturing | 2023 |
| Richdomar Limited | Wholesale & retail | 2014 |
| Richmond Park Properties Limited | Real estate | 2016 |
| Rickman-Metisse Holdings Ltd | Other services | 2020 |
| Ridgeway Products (Yorkshire) Limited | Professional & scientific | 2022 |
| Ridgeway Products Limited | Administrative & support | 2000 |
| Right Buy Classic Cars Limited | Extraterritorial | 2016 |
| Right First Time Marketing Limited | Professional & scientific | 2025 |
| Right NRG Limited | Professional & scientific | 2021 |
| Rina Investments Limited | Real estate | 2025 |
| Ringshaw Developments Limited | Real estate | 2020 |
| Riverside Johnson Trading Ltd | Wholesale & retail | 2025 |
| Riviera Automotive Limited | Wholesale & retail | 2017 |
| RJ Donnan Hearing Care Ltd | Health & social care | 2008 |
| RKS Realty Ltd | Real estate | 2025 |
| RKS Windows and Doors Limited | Construction | 2026 |
| RLA Power Limited | Construction | 2020 |
| RLA Power Solutions Limited | Construction | 2015 |
| RLJ Suffield Limited | Professional & scientific | 2025 |
| RM Wines Ltd | Hospitality | 2023 |
| RMT Construction Services Ltd | Professional & scientific | 2016 |
| RN Waterview Property Sales & Lettings Ltd | Real estate | 2024 |
| RNJ Fylde Properties Ltd | Real estate | 2025 |
| Roadworx Traffic Management Limited | Administrative & support | 2017 |
| Robyn's Pet Co Limited | Wholesale & retail | 2024 |
| Rodgers Mechanical Services Limited | Construction | 2014 |
| Rohan UK Services Limited | Real estate | 1999 |
| ROI Renovations Ltd | Construction | 2018 |
| Rojo Tech Ltd | Wholesale & retail | 2015 |
| Roland Engineering Services Ltd | Manufacturing | 2026 |
| Romanthebear Ltd | Information & communication | 2025 |
| Rossco Environmental Services Limited | Construction | 2024 |
| Rossco Group Ltd | Financial services | 2022 |
| Rossendale & Ramsbottom Limited | Real estate | 2016 |
| Rother Valley Motors Ltd | Wholesale & retail | 2015 |
| Roundhill Green Management Company Limited | Households | 2021 |
| Roundhill Meadows Ltd | Real estate | 2017 |