| Right Auto Trade Limited | Wholesale & retail | 2025 |
| Right Hand Recruitment Ltd | Administrative & support | 2024 |
| Right NOW Living Limited | Real estate | 2023 |
| Rigid Engineering Ltd | Wholesale & retail | 2025 |
| Rimzi Maidstone Ltd | Wholesale & retail | 2023 |
| Rinjom Ltd | Health & social care | 2016 |
| RIO Services Ltd | Construction | 2023 |
| Ripple Business Consultancy Ltd | Professional & scientific | 2025 |
| Rise Communications Ltd | Professional & scientific | 2024 |
| Riser Management Limited | Arts & recreation | 2018 |
| Rittenhouse Ltd | Professional & scientific | 2024 |
| Ritual Barista Store Ltd | Wholesale & retail | 2021 |
| Riva Building Limited | Construction | 2017 |
| Riva Invest Holdings Limited | Financial services | 2026 |
| Riva Investhomes Limited | Construction | 2019 |
| River Medway Aerials Limited | Professional & scientific | 2026 |
| Riverbreeze Associates Limited | Administrative & support | 2010 |
| Riverside Bar & Cafe Maidstone Ltd | Hospitality | 2025 |
| Riverside Business Finance Limited | Administrative & support | 2021 |
| Riverstone Psychology Limited | Health & social care | 2025 |
| Riwaz UK Limited | Professional & scientific | 2024 |
| Rizk Kent Ltd | Hospitality | 2017 |
| RJ Salesforce Consulting UK Ltd | Information & communication | 2025 |
| RJA Project Management Limited | Information & communication | 2018 |
| RJB Group Ltd | Water & waste | 2024 |
| RJD Law Limited | Professional & scientific | 2021 |
| RJG Interiors Limited | Construction | 2006 |
| Rjkz Ltd | Information & communication | 2024 |
| RJL Group Services Ltd | Wholesale & retail | 2025 |
| RJL Steel Fabrications Ltd. | Wholesale & retail | 2017 |
| RJP Transport Ltd | Transport & logistics | 2023 |
| RJS Private Limited | Wholesale & retail | 2025 |
| RJS Procurement Limited | Wholesale & retail | 2008 |
| RK Fast Solutions Ltd | Construction | 2015 |
| RK Masters Ltd | Wholesale & retail | 2024 |
| RK Partners Consulting Limited | Professional & scientific | 2026 |
| RKB Food Content Ltd. | Information & communication | 2018 |
| RKB Legal Services Limited | Professional & scientific | 2015 |
| Rkstraders Ltd | Transport & logistics | 2023 |
| RLB Property Ltd | Real estate | 2019 |
| RLS Associates Limited | Professional & scientific | 2000 |
| RLS Grab Hire Limited | Transport & logistics | 2018 |
| RM Gold (Services) Limited | Mining & quarrying | 2010 |
| RM Property Services Kent Ltd | Construction | 2023 |
| RMD Home Improvements Ltd | Construction | 2017 |
| RMD Maintenance Ltd | Construction | 2025 |
| RMG Security Limited | Administrative & support | 2017 |
| RMH Stamford Ltd | Hospitality | 2021 |
| RMR Real Estate Ltd | Real estate | 2022 |
| Rmrw Properties Limited | Real estate | 2016 |
| RMS Land Limited | Real estate | 2024 |
| RMS Transport Limited | Transport & logistics | 2015 |
| RMV Collect Ltd | Construction | 2026 |
| RNB Electrical & Security Ltd | Construction | 2008 |
| RNB Mechanical Ltd | Other services | 2019 |
| RNB Solar Limited | Construction | 2025 |
| Road Consultants Limited | Construction | 2010 |
| Road Star Taxis Ltd | Transport & logistics | 2023 |
| Road to Succession Ltd | Professional & scientific | 2025 |
| Roadgen Systems Limited | Professional & scientific | 2010 |
| Roadriantrans Limited | Transport & logistics | 2019 |
| Roar Automotive Limited | Wholesale & retail | 2021 |
| Robanes Limited | Wholesale & retail | 2010 |
| Robcab Ltd | Transport & logistics | 2019 |
| Robert Fletcher Associates LLP | | 2009 |
| Robert James (Publications) Ltd | Information & communication | 2001 |
| Robert Montgomery Studio Limited | Arts & recreation | 2014 |
| Roberts Management Services Limited | Professional & scientific | 2012 |
| Robinsons Autoservices Limited | Wholesale & retail | 1941 |
| Robinsons Autostar Garages Holdings Limited | Financial services | 2017 |
| Robinsons TPS Limited | Wholesale & retail | 2006 |
| Rocfort Properties Ltd | Real estate | 2020 |
| Rochester Meadow Holdings Ltd | Real estate | 2022 |
| Rochester Site Services Limited | Professional & scientific | 2015 |
| Rock Farm Oast Management Limited | Households | 1997 |
| Rock Paper Scissors Barbers Ltd | Other services | 2017 |
| Rock Unique Limited | Wholesale & retail | 2001 |
| Rocke & Perkins Capital Group Limited | Financial services | 2026 |
| Rockin Robin PUB Company Limited | Hospitality | 2018 |
| Rockley-Ridge Limited | Real estate | 2021 |
| Rockvest Capital Limited | Real estate | 2022 |
| Rocsop Ltd | Professional & scientific | 2010 |
| Roding Valley Properties Limited | Real estate | 1962 |
| Rodney John Vella Ltd | Manufacturing | 2022 |
| Rodopchanka Ltd | Wholesale & retail | 2025 |
| Rodrigues Investments Limited | Administrative & support | 2012 |
| Roebuck (Ashford Road) Management Limited | Real estate | 2004 |
| Rofennie Property Investments Ltd | Real estate | 2023 |
| Rogerson Limited | Information & communication | 2002 |
| Rogkop Ltd | Transport & logistics | 2020 |
| Rogue Gene Advertising Limited | Professional & scientific | 2001 |
| Roie Ventures Ltd | Real estate | 2019 |
| ROK Group of Companies Ltd | Construction | 2025 |
| Roland Logistics Services Ltd | Transport & logistics | 2020 |
| Rolls Engineering Services Ltd | Other services | 2023 |
| Rolor Logistics Limited | Transport & logistics | 2018 |
| Romalge Coffee Ltd | Wholesale & retail | 2025 |
| Roman One (SE) Ltd | Real estate | 2025 |
| Romanian Land Finance Ltd | Professional & scientific | 2012 |
| Romanian Land Nominees Ltd | Financial services | 2006 |