| RMX Mechanical Ltd | Construction | 2026 |
| RMX Media Ltd | Professional & scientific | 2026 |
| RND Estates Limited | Real estate | 2017 |
| RND Management Limited | Professional & scientific | 2012 |
| RNR Performance Cars Ltd | Wholesale & retail | 2010 |
| Rnspersonalisedgifts Ltd | Wholesale & retail | 2025 |
| Roast Associates Limited | Other services | 2015 |
| Robert Beck and Sons Limited | Other services | 2015 |
| Robert Scotts Commerce Ltd | Wholesale & retail | 2022 |
| Roberto Walsh Design & Build Ltd | Construction | 2020 |
| Roberto Walsh Developments Limited | Real estate | 2025 |
| Roberto Walsh Ltd | Financial services | 2019 |
| Roberto Walsh Property Ltd | Real estate | 2019 |
| Roberts Haulage Limited | Transport & logistics | 2025 |
| Roberts International Publishing Empire Ltd | Wholesale & retail | 2024 |
| Robinson Heating and Plumbing Services Limited | Construction | 2025 |
| Roboboba Ltd | Wholesale & retail | 2025 |
| Robobuggy Ltd | Extraterritorial | 2014 |
| Robust Property Investments Ltd | Real estate | 2024 |
| Robyn Raye Academy Ltd | Other services | 2017 |
| Rochealkezy-Ann Ltd | Public administration | 2020 |
| Rochester Airfield Limited | Professional & scientific | 1999 |
| Rochester Airport Limited | Transport & logistics | 1999 |
| Rochester Data Analysis Ltd | Information & communication | 2021 |
| Rochester Electrical Services Ltd | Construction | 2024 |
| Rochester Mortgages Limited | Financial services | 2015 |
| Rockash Contracting Limited | Construction | 2004 |
| Rocket Property Home Improvements Limited | Construction | 2018 |
| Rocks Development Co Ltd | Construction | 2019 |
| Rockwood Build Ltd | Construction | 2025 |
| Roecastle Consulting Ltd | Information & communication | 2025 |
| Roelectrics Limited | Construction | 2025 |
| Roger Huelin & Co Limited | Professional & scientific | 2004 |
| Rohat Kent Ltd | Administrative & support | 2016 |
| ROJ Accountancy Services Limited | Extraterritorial | 2019 |
| Rojo Trucking Ltd | Transport & logistics | 2012 |
| Rolfe & Rolfe Limited | Professional & scientific | 1997 |
| Rolus Ltd | Professional & scientific | 2025 |
| Romatech Site Maintenance Ltd | Professional & scientific | 2016 |
| Rome House Business Centre Limited | Real estate | 2021 |
| Romedic Transport Ltd | Health & social care | 2024 |
| Romedical Ltd | Health & social care | 2008 |
| Romun Limited | Construction | 1995 |
| Ronniesrapidrepair Ltd | Manufacturing | 2025 |
| Roof Empire Ltd | Construction | 2023 |
| Roofrite Roofing Contractors (South East) Ltd | Construction | 2016 |
| Room for Wine Ltd | Construction | 2021 |
| Room With a VW Ltd | Administrative & support | 2017 |
| Roopa Care Ltd | Health & social care | 2025 |
| Roostys Ltd | Manufacturing | 2019 |
| Roots Therapy Ltd | Health & social care | 2019 |
| Ropemaker Legal Services Limited | Professional & scientific | 2024 |
| Rose 'D' Sharon Limited | Administrative & support | 2013 |
| Rose-Gold Procurement Services Ltd | Wholesale & retail | 2019 |
| Rosefort Limited | Hospitality | 2005 |
| Rosemont Capital Limited | Financial services | 2024 |
| Rosemont Care (Medway) Limited | Health & social care | 2015 |
| Rosemont Care Limited | Administrative & support | 2010 |
| Rosemont Investment Holdings Limited | Financial services | 2019 |
| Roseybee Catering Ltd | Hospitality | 2024 |
| Rossetti Limited | Construction | 1996 |
| Rossini Locum Limited | Health & social care | 2016 |
| Roundwood Property Ashford Limited | Real estate | 2018 |
| Route 16 Limited | Construction | 1998 |
| Route 16 Trading Limited | Wholesale & retail | 1998 |
| Royala Care Ltd | Health & social care | 2021 |
| Rozafeat Ltd | Hospitality | 2022 |
| Rozel Healthcare Ltd | Wholesale & retail | 2021 |
| Rparr Electrical Ltd | Professional & scientific | 2023 |
| Rpml Construction Ltd | Construction | 2019 |
| RQ Wellness Ltd | Health & social care | 2014 |
| RR First Drainage Limited | Water & waste | 2025 |
| RRE Services Ltd | Real estate | 2022 |
| Rrlh Limited | Financial services | 2025 |
| RS Direct Sales Limited | Administrative & support | 2019 |
| RS Exterior Cleaning Limited | Administrative & support | 2025 |
| RS Locks and Glass Ltd | Other services | 2026 |
| RSA Medical Limited | Administrative & support | 2014 |
| Rsdc Services Ltd | Construction | 2021 |
| RT Immigration Services Limited | Professional & scientific | 2025 |
| RTW Dog Boarding Ltd | Other services | 2022 |
| RUB -A-Dub Wash & Go Services Ltd | Other services | 2007 |
| Ruby Remedies Ltd | Wholesale & retail | 2019 |
| Rudys Trans Limited | Transport & logistics | 2015 |
| Runitex Construction Ltd | Construction | 2021 |
| Runway Asset Management Ltd | Hospitality | 2024 |
| Ruspol Limited | Professional & scientific | 2003 |
| Rustic Oven Ltd | Hospitality | 2020 |
| Rusu C D Transport Ltd | Transport & logistics | 2025 |
| Rutherford Hughes Property Ltd | Construction | 2024 |
| Ruthie Maternity Services Ltd | Administrative & support | 2020 |
| Ruxi & Iulia Speed Ltd | Transport & logistics | 2019 |
| RVT Trans Ltd | Transport & logistics | 2022 |
| RXK Limited | Health & social care | 2025 |
| Ryia Limited | Wholesale & retail | 2024 |
| Rynok Retail Ltd | Wholesale & retail | 2019 |
| S & a Capital Investments Limited | Real estate | 2021 |
| S & G Process Engineering Limited | Manufacturing | 2013 |
| S & H Building Services & Property Maintenance Limited | Construction | 2014 |
| S & N Brickwork Limited | Construction | 2026 |