| Revolve Holdings Ltd | Financial services | 2026 |
| Revxel Ltd | Wholesale & retail | 2024 |
| REX Regal Corporate Clothing Limited | Manufacturing | 2012 |
| REX Regal Limited | Manufacturing | 2005 |
| Reynolds Engineering Services Limited | Manufacturing | 2000 |
| RF Business Protection Ltd | Wholesale & retail | 2026 |
| RF Holding Group Ltd | Financial services | 2026 |
| RF Property Rentals Ltd | Real estate | 2026 |
| RF Property Ventures Ltd | Real estate | 2026 |
| RFS22 Limited | Financial services | 2024 |
| RFS72 2 Ltd | Extraterritorial | 1975 |
| RFS72 Group Ltd | Other services | 2003 |
| RFS72 Limited | Extraterritorial | 2022 |
| RGS Construction Services Ltd | Construction | 2024 |
| RH by Rachel Ltd | Other services | 2023 |
| RH Travels Ltd | Transport & logistics | 2026 |
| Rheva Ltd | Real estate | 2025 |
| Rhiew Valley Limited | Real estate | 2015 |
| Ribbon Dream Trading Limited | Wholesale & retail | 2024 |
| Richard Michael Smith Limited | Professional & scientific | 2002 |
| Richards Design Partnership Limited | Professional & scientific | 2020 |
| Richardson Networks Limited | Information & communication | 2007 |
| Richthepostman Ltd | Wholesale & retail | 2024 |
| Ridgeway Homes (UK) Limited | Real estate | 2002 |
| RIE Phil Properties Ltd | Real estate | 2025 |
| Right Engineering Solution Limited | Manufacturing | 2010 |
| Right Step Housing Ltd | Real estate | 2024 |
| Right to Care Ltd | Administrative & support | 2016 |
| Right to Stay Ltd | Real estate | 2019 |
| Righthomes Equity Release Ltd | Financial services | 2023 |
| Riightway Autos Ltd | Wholesale & retail | 2025 |
| RIO Hair Studio Ltd | Other services | 2019 |
| RIO Plumbing Ltd | Construction | 2025 |
| Rising (Ganesh) Limited | Professional & scientific | 2018 |
| Rising Ganesh (KS) Ltd | Real estate | 2022 |
| Risk and Security Limited | Professional & scientific | 2023 |
| Risk Audit Security Ltd | Professional & scientific | 2013 |
| Ritechoice Ltd | Wholesale & retail | 2023 |
| Ritzconsult Ltd | Information & communication | 2023 |
| River Bar (Derby) Limited | Hospitality | 1996 |
| Riverloop Ltd | Manufacturing | 2022 |
| Riverstone Housing and Support Ltd | Hospitality | 2025 |
| Riviera Carpets (UK) Limited | Financial services | 2026 |
| RJ Associate Services Ltd | Administrative & support | 2023 |
| RJ Clark Engineering Ltd | Professional & scientific | 2020 |
| RJ Couriers London Limited | Transport & logistics | 2025 |
| RJ Doors & Panels Ltd | Wholesale & retail | 2025 |
| RJG Properties Midlands Ltd | Real estate | 2022 |
| RJL Business Solutions Limited | Professional & scientific | 2019 |
| RJM Marketing Services Ltd | Arts & recreation | 2017 |
| RJS Dental Laboratory Ltd | Manufacturing | 2017 |
| RK Barbers Ltd | Other services | 2024 |
| RK Corporation Ltd | Real estate | 2021 |
| RK Essentials Ltd | Wholesale & retail | 2024 |
| RKA Holdings Limited | Real estate | 2015 |
| Rkdd Property Limited | Real estate | 2021 |
| RLR Property Limited | Real estate | 2025 |
| Rmjm Holdings Ltd | Financial services | 2020 |
| Rmjm Joinery Ltd | Other services | 2012 |
| RMR Birmingham Limited | Other services | 2017 |
| RMS Projects Ltd | Professional & scientific | 2023 |
| Road Rebel Transport Ltd | Transport & logistics | 2019 |
| Road to Compliance Limited | Professional & scientific | 2013 |
| Roadrunner Leaflet Distribution Limited | Other services | 2013 |
| Roar Sporting Ltd | Wholesale & retail | 2024 |
| Robert Arthur Limited | Professional & scientific | 2023 |
| Robert Lickley Holdings Limited | Financial services | 1977 |
| Robert Lickley Refractories Limited | Manufacturing | 1977 |
| Robert M Cunningham Limited | Construction | 2025 |
| Robinson Guest Holdings & Investments Ltd | Financial services | 2023 |
| Robinson Guest Limited | Administrative & support | 2023 |
| Robot Based Automation Limited | Professional & scientific | 2023 |
| Robson Hunnam Ltd | Professional & scientific | 2025 |
| ROC Group (Developments) Limited | Construction | 2017 |
| ROC Maintenance Ltd | Construction | 2024 |
| Rock Commercial Recruitment Limited | Administrative & support | 2012 |
| Rockaffairs Limited | Real estate | 2010 |
| Rockhaven Group Limited | Administrative & support | 2025 |
| Rocky Lane Courier Ltd | Transport & logistics | 2017 |
| Rofia Jewellers Ltd | Wholesale & retail | 2015 |
| Rofia Jewellers MA Ltd | Other services | 2023 |
| Rogue Eats Ltd | Hospitality | 2022 |
| Romanian Consultancy and Translation Service Ltd | Professional & scientific | 2024 |
| Ronald Shaw & Co Limited | Professional & scientific | 2013 |
| Roomshield Limited | Wholesale & retail | 2020 |
| Root & Rhythm Ltd | Information & communication | 2025 |
| Rosehill (Shrewsbury) RTM Company Limited | Households | 2006 |
| Rosenco Group Ltd | Administrative & support | 2019 |
| Roseville Property Group Limited | Real estate | 2025 |
| Roseville Sales and Lettings Limited | Real estate | 2020 |
| Rosewell Health Care Ltd | Health & social care | 2024 |
| Rosscomm Projects Ltd | Construction | 2015 |
| Rostherne Village Ltd | Administrative & support | 2022 |
| Rostoc Limited | Professional & scientific | 2000 |
| Roughcote Hall (Stoke) Ltd | Health & social care | 2017 |
| Roughcote Hall Farm Ltd | Administrative & support | 2017 |
| Roughcote Holdings Ltd | Administrative & support | 2017 |
| Route 39 Ltd | Other services | 2023 |
| Rowley Tyres Ltd | Wholesale & retail | 2025 |
| Roxburghe Assets Limited | Real estate | 2013 |