| Real Building Contractors (Wessex) Limited | Construction | 2009 |
| Real Price Accountants Limited | Administrative & support | 2013 |
| Real Price Bookkeeping Limited | Administrative & support | 2013 |
| Real Price LOW Cost Accountancy Limited | Administrative & support | 2012 |
| Real Price Payroll Limited | Administrative & support | 2013 |
| Real Price Taxation Limited | Administrative & support | 2013 |
| Real South Limited | Hospitality | 2017 |
| Real Vintage Roots Ltd | Wholesale & retail | 2023 |
| Real-Estate Rentals Limited | Real estate | 2008 |
| Realcomputers Limited | Information & communication | 2024 |
| Realestate SW Limited | Real estate | 2020 |
| Realist Network Limited | Information & communication | 2019 |
| Rebel Speedworks Ltd | Manufacturing | 2025 |
| Recapture Life CIC | Education | 2021 |
| Recorre Holdings Ltd | Real estate | 2025 |
| Recyc-Oil Ltd. | Water & waste | 2006 |
| Red 10 EOT Trustees Limited | Administrative & support | 2019 |
| Red Barn Consultants Ltd | Administrative & support | 2024 |
| Red Divide Limited | Wholesale & retail | 2023 |
| Red Panda Event Solutions Ltd | Professional & scientific | 2026 |
| Red Panda Films Ltd | Information & communication | 2022 |
| RED4T Project Solutions Limited | Professional & scientific | 2020 |
| Redan Estates Limited | Real estate | 2021 |
| Redbolt Technologies Limited | Information & communication | 2025 |
| Redbrick Consulting Limited | Information & communication | 2026 |
| Redcar Specsavers Hearcare Limited | Wholesale & retail | 2023 |
| Redcar Specsavers Limited | Wholesale & retail | 1998 |
| Redcar Visionplus Limited | Wholesale & retail | 1998 |
| Redditch Alvechurch Specsavers Limited | Wholesale & retail | 2022 |
| Redhill Specsavers Hearcare Limited | Wholesale & retail | 2005 |
| Redhill Specsavers Limited | Wholesale & retail | 1998 |
| Redlake Garage Services Limited | Wholesale & retail | 1998 |
| Redm Professional Services UK Ltd | Information & communication | 2018 |
| Redmond Mclean Ltd | Information & communication | 2007 |
| Redruth Specsavers Limited | Wholesale & retail | 2002 |
| Redstar Foodservice Ltd | Wholesale & retail | 2008 |
| Redton Retreats Ltd | Administrative & support | 2025 |
| Reeben Investments Ltd | Financial services | 2023 |
| Reenett Limited | Administrative & support | 2023 |
| Reeta Vickers Recruitment Ltd | Administrative & support | 2023 |
| Reform Electrical Distributors Ltd | Wholesale & retail | 2022 |
| Regen Earth Ltd | Professional & scientific | 2022 |
| Regency Care Limited | Health & social care | 2011 |
| Regency Digital Limited | Wholesale & retail | 2026 |
| Regent Trade Park (Gosport) Limited | Real estate | 2005 |
| Regular Smith Ltd | Real estate | 2025 |
| Reigate Specsavers Limited | Wholesale & retail | 2007 |
| Reigate Visionplus Limited | Wholesale & retail | 2007 |
| Reign Valeting Ltd | Wholesale & retail | 2021 |
| Rejuv Wellness Ltd | Wholesale & retail | 2026 |
| Reksmo Limited | Wholesale & retail | 2020 |
| Relax Estates Ltd | Real estate | 2019 |
| Relay Security Limited | Construction | 2007 |
| Reliance CMS Limited | Manufacturing | 2016 |
| Relived Limited | Wholesale & retail | 2026 |
| Rella Construction Limited | Construction | 2024 |
| Remarkable Repairs Ltd | Construction | 2019 |
| Remf Tech Limited | Professional & scientific | 2023 |
| Remind MHT Limited | Health & social care | 2022 |
| Remix DRY Mortar Limited | Manufacturing | 1999 |
| Remote Medical International Ltd | Extraterritorial | 2019 |
| Remote Medical International UK Ltd | Administrative & support | 2011 |
| Renaissance Blooms Limited | Other services | 2019 |
| Renbro Developments Limited | Construction | 2025 |
| Rendtec Ltd | Construction | 2023 |
| Renee Alexandra Skinner Limited | Professional & scientific | 2024 |
| Renegade Audio Ltd | Information & communication | 2017 |
| Renewables Southcoast Limited | Manufacturing | 2025 |
| Rent My Trailer Ltd | Wholesale & retail | 2024 |
| Replinker Ltd | Professional & scientific | 2026 |
| Repton Real Estate Limited | Real estate | 2022 |
| Requoter Limited | Professional & scientific | 2022 |
| Research and Manpower Consultants Ltd | Administrative & support | 2019 |
| Reset Electrical Ltd | Construction | 2012 |
| Resin Works (South) Ltd | Construction | 2022 |
| Resistance Pilatchi Ltd | Arts & recreation | 2022 |
| Resisure Ltd | Information & communication | 2023 |
| Resko Solutions Limited | Wholesale & retail | 2015 |
| Resolut Boat Company Limited | Manufacturing | 2023 |
| Resolutiontrust (Servicing) Limited | Professional & scientific | 2001 |
| Responix Ltd | Information & communication | 2025 |
| Restyle Pro Ltd | Construction | 2022 |
| Resurrection Studio Limited | Arts & recreation | 2024 |
| Retford Specsavers Hearcare Limited | Wholesale & retail | 2025 |
| Retford Specsavers Limited | Wholesale & retail | 1993 |
| Retford Visionplus Limited | Wholesale & retail | 1993 |
| Reticom (Holdings) Limited | Professional & scientific | 2013 |
| REV & Weld Auto Works Ltd | Manufacturing | 2026 |
| Revenuewire (UK) Ltd | Wholesale & retail | 2011 |
| Reverie (a Spark Group Company) Ltd | Information & communication | 2023 |
| Revived Drives Landscapes and Developments Limited | Construction | 2017 |
| Rezx Ltd | Information & communication | 2025 |
| RFE Consultants Limited | Administrative & support | 2017 |
| Rgepa Ltd | Professional & scientific | 2025 |
| RGL Properties Ltd | Households | 2026 |
| RGS Courier Service Ltd | Transport & logistics | 2026 |
| RH QA Consulting Ltd | Professional & scientific | 2023 |
| Rhea Plus Ltd | Health & social care | 2018 |
| Rheal Architecture Ltd | Professional & scientific | 2019 |
| Rhiannon Thomason Consulting Ltd | Professional & scientific | 2025 |