| React Holdings Limited | Financial services | 2020 |
| React Inclusivity Limited | Information & communication | 2020 |
| Reactive Roofing Solutions Limited | Construction | 2020 |
| Ready 2 Foods Ltd | Hospitality | 2018 |
| Realm Global Holdings Limited | Professional & scientific | 2017 |
| Red Box Productions Ltd | Information & communication | 2013 |
| Red Brick & Stone Property Ltd | Real estate | 2026 |
| Red Chilli Finance Ltd | Financial services | 2015 |
| Red Floral Ltd | Professional & scientific | 2010 |
| Red Interior Solutions Ltd | Other services | 2003 |
| Redbird Property Management Limited | Professional & scientific | 2013 |
| Redbrick P S Group Limited | Extraterritorial | 2020 |
| Redbrick Property Solutions Limited | Real estate | 2010 |
| Redmires Holdings Limited | Professional & scientific | 2020 |
| Reedirect Ltd | Professional & scientific | 2025 |
| Reeds Garage Limited | Wholesale & retail | 2003 |
| Reese Property Investments Limited | Real estate | 2025 |
| Reet Ltd | Information & communication | 2023 |
| Reference Lock Ltd | Administrative & support | 2026 |
| Regency Software Consultancy Ltd. | Information & communication | 1997 |
| Regenlith Limited | Real estate | 2022 |
| Reja Property Services Ltd | Construction | 2025 |
| Reliability Works Solutions Ltd | Professional & scientific | 2026 |
| Reliavolt Limited | Construction | 2024 |
| Remodel Reach Limited | Professional & scientific | 2025 |
| RENOVATE4 Ltd | Real estate | 2025 |
| Rentfile Software Limited | Information & communication | 2024 |
| Repurpose Innovations Ltd | Water & waste | 2025 |
| Residents of Old Dairy Mews 2008 Limited | Professional & scientific | 2008 |
| Resolute Ventures Group Ltd | Wholesale & retail | 2026 |
| Retro Luxe Ltd | Wholesale & retail | 2024 |
| Reubens Joinery Ltd | Construction | 2024 |
| Revenge Marketing Limited | Professional & scientific | 2018 |
| Revive! (Stockport) Limited | Wholesale & retail | 2016 |
| Rgml Holdings Ltd | Information & communication | 2023 |
| Rgml Ltd | Administrative & support | 2020 |
| RH Elite Coaching Limited | Arts & recreation | 2020 |
| Rhhp Limited | Real estate | 2008 |
| Rhino Automotive Ltd | Administrative & support | 1996 |
| Rhino Companies Limited | Financial services | 2022 |
| Rhino Concrete Limited | Manufacturing | 2024 |
| Rhino Piling Limited | Construction | 2018 |
| Rhino Property Limited | Real estate | 2021 |
| Rhino Structural Ltd | Professional & scientific | 2022 |
| Rhodes and Leak Ltd | Construction | 2020 |
| Rhodes Painting and Decorating Limited | Construction | 2025 |
| Rhsm Limited | Hospitality | 2025 |
| RI Ri's Dance Academy Ltd | Arts & recreation | 2013 |
| RIC Wood Motorsport Limited | Wholesale & retail | 2016 |
| Ricardo 68 Limited | Real estate | 2019 |
| Richard & Richard's Properties Limited | Real estate | 2024 |
| Richmael House (Services) Limited | Households | 1980 |
| Richmond Car Sales Ltd | Wholesale & retail | 2002 |
| Richweld Ltd | Extraterritorial | 2025 |
| Ridge Plumbing and Heating Limited | Construction | 2026 |
| Right Choice Driveways Ltd | Construction | 2018 |
| Right Venues Group Limited | Hospitality | 2022 |
| Right-Line Design Ltd | Professional & scientific | 2011 |
| Rightway Installation Ltd | Construction | 2018 |
| Riley Plant Spares Limited | Construction | 2008 |
| Ringwood Property Investments Limited | Real estate | 2017 |
| Rinze & Co. Limited | Wholesale & retail | 2024 |
| Riscc Ltd | Information & communication | 2009 |
| Rise Scaffolding & Rigging Limited | Construction | 2024 |
| RJ Huxtable Limited | Construction | 2019 |
| Rj’S Prestige Properties Ltd | Hospitality | 2025 |
| RK Hasan Ltd | Real estate | 2024 |
| RKB Daily Feast Ltd | Wholesale & retail | 2025 |
| RL Consulting 2024 Ltd | Professional & scientific | 2024 |
| Rmack Limited | Construction | 2021 |
| Roam From Home Ltd | Wholesale & retail | 2023 |
| ROB Allen Landscape Designs Ltd | Administrative & support | 2009 |
| Rob-Co Holdings Limited | Professional & scientific | 2009 |
| Roberts Transport Solutions Limited | Administrative & support | 2009 |
| Rock Kitchens and Bathrooms Ltd | Construction | 2019 |
| Rock Street Management Limited | Households | 1993 |
| Rocket 68 Ltd | Real estate | 2020 |
| Roman Landlord Services Limited | Other services | 2022 |
| Romanian Dynamic Property Fund | | 2008 |
| Romansp Marketing Limited | Administrative & support | 2026 |
| Romiley Bowling and Tennis Club Company Limited | Extraterritorial | 1908 |
| Romiley Leisure Limited | Hospitality | 2025 |
| Romiley Liberal Club and Hall Company Limited | Construction | 1912 |
| Rookwood Renovation Services Limited | Construction | 2024 |
| Rooted Memories Ltd | Information & communication | 2026 |
| Roots Recruitment Global Limited | Professional & scientific | 2022 |
| Rosemount MOT Centre Limited | Wholesale & retail | 2014 |
| Roshban Healthcare Limited | Wholesale & retail | 2020 |
| Rossington Place Management Company Limited | Real estate | 2011 |
| Rovira Ltd | Transport & logistics | 2025 |
| Royton North Community Group C.I.C. | Other services | 2019 |
| RPZ Valve Testing Limited | Professional & scientific | 2021 |
| RS Beauty Loft Limited | Other services | 2025 |
| Rueben HC Limited | Administrative & support | 2021 |
| Ruhl Ltd | Information & communication | 2025 |
| Rulia Ltd | Manufacturing | 2025 |
| Rustic FOX Limited | Manufacturing | 2021 |
| Ryen Mart Limited | Wholesale & retail | 2025 |
| S & M Halal Meat Hyde Limited | Wholesale & retail | 2020 |
| S & P Windows and Doors Limited | Construction | 2020 |