| RAW Electrical Contractors Ltd | Construction | 2014 |
| Rawan Transport Ltd | Transport & logistics | 2024 |
| Rayfield Contractors Limited | Construction | 2003 |
| Raymond Carriers Ltd | Transport & logistics | 2024 |
| Raynsford Kitchens Ltd | Manufacturing | 2024 |
| Razor Binaries Ltd | Wholesale & retail | 2005 |
| RB Design & Build Ltd | Manufacturing | 2024 |
| RBR Consultants Ltd | Professional & scientific | 2023 |
| RBS Estate Management Ltd | Extraterritorial | 2024 |
| RC Plumbing & Heating Limited | Construction | 2025 |
| Rccg Winners Way Chatham | Other services | 2015 |
| RDB 10 Consultancy Ltd | Professional & scientific | 2025 |
| Rdcv Limited | Construction | 2021 |
| RDS Utilities Limited | Construction | 2008 |
| REA Scaffolding Services Ltd | Construction | 2025 |
| React Fast 365 Limited | Construction | 2009 |
| Reade Properties Ltd | Real estate | 2026 |
| Reader Regulatory Limited | Professional & scientific | 2022 |
| Real London Grub Limited | Hospitality | 2025 |
| Realelite Properties Ltd | Real estate | 2022 |
| Rebakers Cakes Ltd | Wholesale & retail | 2014 |
| Recton Care Limited | Information & communication | 2023 |
| Red and Green Ltd. | Transport & logistics | 2017 |
| Red Banana Studios Ltd | Transport & logistics | 2026 |
| Red Barracks Road 1964 Limited | Extraterritorial | 2014 |
| Red Brick Nest Ltd | Real estate | 2021 |
| Red Fire Holdings Ltd | Professional & scientific | 2023 |
| Red House New Romney Management Limited (the) | Households | 1975 |
| Red Tree Engineering Limited | Construction | 2023 |
| Reddy & Geetha Healthcare Limited | Health & social care | 2012 |
| Redford Charles Limited | Administrative & support | 2004 |
| Rednorth Ltd | Hospitality | 2025 |
| Redoc Ltd | Wholesale & retail | 2026 |
| Redtored Limited | Transport & logistics | 2020 |
| Redwood Property Maintenance Limited | Construction | 2008 |
| Reego (U.K.) Law Group Limited | Administrative & support | 2019 |
| Reengage & Flourish Ltd | Education | 2026 |
| Reeves Electrical Services Limited | Construction | 2014 |
| Refine Global Ltd | Information & communication | 2024 |
| Reflections Hairdressers Limited | Other services | 2010 |
| Reflux Educational Navigators Limited | Education | 2022 |
| Regal Moving and Storage Limited | Transport & logistics | 2017 |
| Regal Removals and Storage Limited | Wholesale & retail | 2019 |
| Regal South East Limited | Transport & logistics | 2013 |
| Regalia Academy Ltd | Public administration | 2023 |
| Regalia Care Ltd | Administrative & support | 2022 |
| Regalia Homecare Ltd | Health & social care | 2025 |
| Regency Court Management (Gillingham) Limited | Real estate | 2011 |
| Regenerate Consulting Limited | Professional & scientific | 2023 |
| Regenglobaluk Limited | Manufacturing | 2015 |
| Regent Park Limited | Households | 2021 |
| Regent Well Developments Ltd | Construction | 2021 |
| Rehman Chishti Leadership Academy & Strategic Advice Limited | Professional & scientific | 2024 |
| Rehoboth Haven Ltd | Health & social care | 2025 |
| Rehoboth Recruitment Services Limited | Administrative & support | 2006 |
| Reignite Services Ltd | Health & social care | 2018 |
| Reindeer Pest Management Limited | Administrative & support | 2024 |
| Reindorfot Ltd | Education | 2026 |
| Rejaconsultancy Limited | Professional & scientific | 2023 |
| Relationships Medway and North Kent Ltd | Health & social care | 2003 |
| Relief Services Ltd | Construction | 2020 |
| Reltem Ltd | Wholesale & retail | 2015 |
| Rembrandt Interiors Limited | Construction | 2015 |
| Remid Installations Ltd | Construction | 2017 |
| Remis Logistics Limited | Transport & logistics | 2017 |
| Renaissance Clothing Limited | Wholesale & retail | 2024 |
| Rendall Rocha Limited | Professional & scientific | 2017 |
| Rendev Limited | Professional & scientific | 2011 |
| Renew Bridal Ltd | Wholesale & retail | 2023 |
| Renewable One Ltd | Energy | 2025 |
| Renova Recycling Co., Ltd | Wholesale & retail | 2023 |
| Renu Digital Ltd | Information & communication | 2023 |
| REPAIR360 Limited | Wholesale & retail | 2020 |
| Rescue Folk CIC | Education | 2026 |
| Resham Property Investments Ltd | Real estate | 2017 |
| Residents Management (NO.91) Limited | Households | 1986 |
| Resource First Ltd | Professional & scientific | 2004 |
| RETAIL100 Consulting Ltd | Professional & scientific | 2021 |
| Retention GAP Limited | Professional & scientific | 2020 |
| Retire and Roam Ltd | Information & communication | 2026 |
| RETROFIT2035 Ltd Ltd | Professional & scientific | 2023 |
| Return 2 Work Training Ltd | Education | 2026 |
| Returnify Ltd | Professional & scientific | 2025 |
| Revel Festival Ltd | Arts & recreation | 2023 |
| Revill Architects and Master Planners Limited | Professional & scientific | 2023 |
| Revitamoss Ltd | Manufacturing | 2021 |
| Revival Cleaning Services Ltd | Administrative & support | 2025 |
| Revolution Lifts Ltd | Construction | 2020 |
| Reyned Ltd | Real estate | 2023 |
| RG Motorsport Ltd | Wholesale & retail | 2024 |
| Rgls Consultancy Limited | Professional & scientific | 2022 |
| Rhinovate Development Ltd | Construction | 2026 |
| Rhjb Ltd | Administrative & support | 2017 |
| Rhpd Holdings Limited | Financial services | 2020 |
| RHU Group Limited | Financial services | 2020 |
| Rhubarb & Pickle Ltd | Financial services | 2020 |
| Rhubarb Business Services Limited | Professional & scientific | 2008 |
| Rhubarb Insurance Solutions Limited | Financial services | 2017 |
| Riastouch Ltd | Other services | 2023 |
| Ribble Construction Ltd | Construction | 2026 |