| Reydom Property Services Ltd | Real estate | 2019 |
| Reydom Solutions Ltd | Construction | 2024 |
| RG & KG Holdings Limited | Financial services | 2025 |
| RGS Engineering Limited | Construction | 1999 |
| Rh&Co Ltd | Professional & scientific | 2025 |
| Rhas Automobile Ltd | Wholesale & retail | 2026 |
| Rhas International Ltd | Wholesale & retail | 2023 |
| Rhino Asset Holdings Limited | Financial services | 2018 |
| Rhino Estates Limited | Financial services | 2009 |
| Rhino Exteriors Limited | Construction | 2007 |
| Rhsr Services Ltd | Construction | 2024 |
| Rhythm Investments Limited | Financial services | 2022 |
| RI Development Limited | Extraterritorial | 2002 |
| Riash Limited | Transport & logistics | 2018 |
| Ribbon Consultancy Ltd | Information & communication | 2026 |
| Richard Beale Developments (Kent) Limited | Extraterritorial | 2000 |
| Richard Beale Developments Limited | Construction | 1999 |
| Richard Beale Holdings Limited | Extraterritorial | 2000 |
| Richard James Recruitment Specialists Ltd | Administrative & support | 2016 |
| Richard's Mark Ltd | Construction | 2024 |
| Richards Renovations and Construction Ltd | Construction | 2026 |
| Richgreen Master's Limited | Real estate | 2024 |
| Richman Services Kent Ltd | Construction | 2016 |
| Rico Sabor Ltd | Hospitality | 2019 |
| Rider Interior Design Limited | Administrative & support | 2001 |
| Riders Favourite Limited | Administrative & support | 2018 |
| Rightsight Vision Ltd | Manufacturing | 2008 |
| RIK Consulting Limited | Professional & scientific | 2005 |
| Rimfix Ltd | Wholesale & retail | 2022 |
| Rimkus Estates Ltd | Real estate | 2026 |
| Ringshill Farm Limited | Agriculture & fishing | 1998 |
| Rios DE Vida CIC | Other services | 2013 |
| Rise Automation Ltd | Professional & scientific | 2023 |
| Rise on Tech Ltd | Professional & scientific | 2022 |
| Risepak Ltd | Construction | 2024 |
| Rising Tribe Ltd | Wholesale & retail | 2024 |
| Risk Review Ltd | Professional & scientific | 2016 |
| Risky Regg Ltd | Information & communication | 2024 |
| Ritual Motorcycles Limited | Wholesale & retail | 2014 |
| Rivers Rental Properties Ltd | Real estate | 2025 |
| Riverside Commercials (S.E.) Limited | Wholesale & retail | 2007 |
| Riverside HQ Ltd | Real estate | 2025 |
| Riverside International Holdings Ltd | Professional & scientific | 2018 |
| Riverside Mech Limited | Professional & scientific | 2025 |
| Riverside Medway Limited | Wholesale & retail | 2011 |
| Riverside Underwriting Limited | Financial services | 2007 |
| Riverview (Rochester) Management Co Ltd | Households | 2007 |
| Riverview Management Limited | Real estate | 1991 |
| Riverview Smart Repair Ltd | Wholesale & retail | 2024 |
| Riverview Technical Services (UK) Limited | Professional & scientific | 2010 |
| Rizon Projects Ltd | Professional & scientific | 2026 |
| Rj&K Limited | Real estate | 2020 |
| RJD Solutions Limited | Construction | 2019 |
| RJF Coaching Services Ltd | Arts & recreation | 2024 |
| RJG Coachworks Ltd | Wholesale & retail | 2022 |
| RJT Landscaping & Building Ltd | Administrative & support | 2022 |
| Rkgd Properties Ltd | Real estate | 2021 |
| RKR IT Ltd | Information & communication | 2025 |
| RL Optical Limited | Health & social care | 2013 |
| RLB Coaching Ltd | Arts & recreation | 2021 |
| Rlkl Communications Services Ltd | Administrative & support | 2018 |
| RM Holsgrove Ltd | Manufacturing | 2023 |
| RMC Smart Power Ltd | Construction | 2025 |
| RMH Engineering Limited | Construction | 2016 |
| RMP Civil and Construction Services Limited | Construction | 2016 |
| RMS Europe Ltd | Information & communication | 2015 |
| Rmtech Electrical Ltd | Construction | 2021 |
| RNS Automotive Services Limited | Wholesale & retail | 2023 |
| Roadstar Trucking Ltd | Transport & logistics | 2023 |
| Roadsteam Ltd | Real estate | 2024 |
| Roak Fit Ltd | Wholesale & retail | 2026 |
| Robertson Consultancy Services Ltd | Other services | 2026 |
| Robin & Rochester Ltd | Real estate | 2019 |
| Robin Codeworks Ltd | Information & communication | 2013 |
| Robixol Limited | Information & communication | 2022 |
| Robotic Machinery Company Limited | Construction | 2019 |
| Robust Rigging Ltd | Administrative & support | 2017 |
| Robyn Elliott Ltd | Professional & scientific | 2023 |
| Roccolino's Ltd | Manufacturing | 2026 |
| Rochester Brickwork Limited | Construction | 2017 |
| Rochester Cathedral Enterprises Limited | Wholesale & retail | 1977 |
| Rochester City Properties Limited | Real estate | 2024 |
| Rochester Commercial Limited | Real estate | 2018 |
| Rochester Convenience Store Ltd | Wholesale & retail | 2026 |
| Rochester Diocesan Society and Board of Finance(The) | Health & social care | 1915 |
| Rochester Fish Bar Ltd | Hospitality | 2023 |
| Rochester Food Store Limited | Wholesale & retail | 2016 |
| Rochester Fried Chicken Ltd | Hospitality | 2022 |
| Rochester Furniture Hire Ltd | Administrative & support | 2024 |
| Rochester Grill 68 Ltd | Hospitality | 2023 |
| Rochester Grill Medway Ltd | Hospitality | 2019 |
| Rochester Hair Limited | Other services | 2020 |
| Rochester Heights Limited | Real estate | 2025 |
| Rochester Highstreet Subway Ltd | Wholesale & retail | 2025 |
| Rochester Indoor Skatepark Club | Arts & recreation | 2007 |
| Rochester Joinery Ltd | Construction | 2022 |
| Rochester Lettings Limited | Real estate | 2002 |
| Rochester Masonic Hall & Club Company,Limited(The) | Other services | 1923 |
| Rochester Music School Ltd | Education | 2019 |
| Rochester Physiotherapy Limited | Health & social care | 2003 |