| R&H Motor Solutions Ltd | Wholesale & retail | 2026 |
| R&L Rigging Services Ltd | Information & communication | 2018 |
| R&M Gym Limited | Arts & recreation | 2018 |
| R&Mb Construction Ltd | Construction | 2017 |
| R&N Ventures Limited | Real estate | 2025 |
| R&P Technologies Ltd | Information & communication | 2025 |
| R&R Drainage Limited | Water & waste | 2020 |
| R&S Ashford Ltd | Real estate | 2025 |
| R&S Bailey Ltd | Hospitality | 2021 |
| R&T Projects Ltd | Construction | 2020 |
| R&T Roofing Contractors Ltd | Construction | 2008 |
| R.A.M Real Estate Limited | Real estate | 2018 |
| R.J. Barwick Limited | Construction | 1954 |
| R.J. Gibbs & Sons Limited | Construction | 2009 |
| R.J.W.Limited | Manufacturing | 1962 |
| R3STORE Studios Limited | Arts & recreation | 2016 |
| RA Reality Limited | Real estate | 2025 |
| Rabuf Limited | Wholesale & retail | 2023 |
| RAC Ashford Limited | Administrative & support | 1998 |
| Racereceiver UK Ltd | Wholesale & retail | 2025 |
| Rachel Lane Ltd | Information & communication | 2013 |
| RAD Group Ltd | Information & communication | 2017 |
| RAD Industries Limited | Financial services | 2023 |
| Radeon Consulting Limited | Information & communication | 2010 |
| Radio Ashford Limited | Information & communication | 2008 |
| Radio Canterbury Limited | Information & communication | 2023 |
| Radio Chid Ltd | Information & communication | 2025 |
| Radio Experts Limited | Professional & scientific | 2007 |
| Radio Experts Trustees Limited | Administrative & support | 2022 |
| Radius Shipping & Forwarding Limited | Transport & logistics | 2023 |
| Radius Shipping Limited | Administrative & support | 2004 |
| RADY8 Ltd | Health & social care | 2013 |
| RAF Building & Construction Limited | Construction | 2016 |
| RAF Paper Limited | Professional & scientific | 2022 |
| Rafa & PHI Limited | Wholesale & retail | 2023 |
| Ragamuffin Art Limited | Professional & scientific | 2012 |
| Rage Web Design Ltd | Information & communication | 2010 |
| RAI & Naik Ltd | Health & social care | 2025 |
| Rail Connect Ltd | Construction | 2024 |
| Raillines Ltd | Construction | 2021 |
| Railmen of Kent Limited | Construction | 2020 |
| Railtecheng Ltd | Professional & scientific | 2025 |
| Rainbowz Limited | Health & social care | 2012 |
| Raine Associates Ltd | Professional & scientific | 2024 |
| Raise Technologies Limited | Information & communication | 2026 |
| Raja Medical Service Limited | Health & social care | 2015 |
| Rajinder Singh Gill Limited | Wholesale & retail | 2023 |
| Rajsound Ltd | Information & communication | 2024 |
| Rakin Taxi Ashford Ltd | Transport & logistics | 2024 |
| Ramblewood Ltd | Information & communication | 2025 |
| Ramona Tipnis Jewellery Ltd | Manufacturing | 2018 |
| Ramsgate Design & Build Limited | Construction | 2008 |
| Rana Aesthetics Limited | Health & social care | 2024 |
| Rana Realty Limited | Real estate | 2022 |
| Randall Health Care Ltd | Wholesale & retail | 2019 |
| Ranpura Farm Cattery Limited | Other services | 2024 |
| Ransley Bloodstock Limited | Agriculture & fishing | 2016 |
| Ransley HAY Ltd | Wholesale & retail | 2011 |
| Rapid Carpets Ltd | Wholesale & retail | 2025 |
| Rapunzel Ltd | Other services | 2004 |
| Rasta-Viti Ltd. | Wholesale & retail | 2015 |
| Ravell Transport Limited | Transport & logistics | 2026 |
| Ravens Court (Kennington) Management Company Limited | Households | 2016 |
| Ravenscourt Estates Limited | Construction | 2017 |
| RAW Pet Foods Ltd | Manufacturing | 2010 |
| RAW Petfood Machinery Ltd | Wholesale & retail | 2022 |
| RAY Expert Solutions Ltd | Professional & scientific | 2021 |
| RAY Simpson Engineering Ltd | Professional & scientific | 2009 |
| Raya Consultants Ltd | Health & social care | 2022 |
| Raycasa Investments Limited | Construction | 2018 |
| Raycasa Life Limited | Administrative & support | 2017 |
| Raycasa Living Limited | Administrative & support | 2017 |
| Raymond Care Group Ltd | Health & social care | 2025 |
| Raypan Ltd | Wholesale & retail | 2022 |
| Rays & Views Ltd | Health & social care | 2022 |
| Rays Recoveries Ltd | Wholesale & retail | 2022 |
| Raytello Limited | Real estate | 2017 |
| Razor Room (Ashford) Ltd | Other services | 2020 |
| Razvanst Limited | Professional & scientific | 2022 |
| RB Central Systems Limited | Other services | 2018 |
| RBC Business Services Ltd | Other services | 2011 |
| Rbdesignsuk Ltd | Professional & scientific | 2022 |
| Rbdg Ltd | Other services | 2020 |
| RBJ Construction Services Ltd | Construction | 2019 |
| RBJ Property Development Services Limited | Real estate | 2024 |
| RC Motion Design Limited | Information & communication | 2021 |
| Rcej Construction Limited | Construction | 2018 |
| Rchauffeurs Ltd | Transport & logistics | 2025 |
| Rchd Ltd | Construction | 2018 |
| RD Carpentry and Cabinets Ltd | Manufacturing | 2026 |
| RD Snaps Ltd | Professional & scientific | 2025 |
| RDA Consulting Architects (Kent) Limited | Professional & scientific | 2014 |
| Rdaska Ltd | Real estate | 2015 |
| RDB Estates Holdings Limited | Real estate | 2021 |
| RDB Estates Kent Ltd | Real estate | 2021 |
| RDB Holdings Limited | Real estate | 2015 |
| RDB Kent Limited | Real estate | 2017 |
| RE Solutions Kent Ltd | Construction | 2019 |
| Re:Flex Events Ltd | Administrative & support | 2025 |
| Reach OUT and Recover (Roar) Kent CIC | Health & social care | 2025 |