| Resilient Bonds CIC | Education | 2024 |
| Resonate International Limited | Professional & scientific | 2015 |
| Respiratorydoc Ltd | Health & social care | 2022 |
| Response Solutions Limited | Water & waste | 2002 |
| Responsible Innovation LAB Limited | Professional & scientific | 2025 |
| Retail Rental Repair Limited | Administrative & support | 2020 |
| Retrofit Plus Limited | Wholesale & retail | 2007 |
| Reusable Life Ltd | Wholesale & retail | 2021 |
| Reve Home Company Ltd | Extraterritorial | 2013 |
| Revolution Scaffolding Services Ltd | Construction | 2024 |
| REX Production Co., Ltd | Professional & scientific | 2011 |
| Reyfinn Design Co., Ltd | Extraterritorial | 2016 |
| RG Construction 76 Ltd | Construction | 2019 |
| RGW Group Ltd | Extraterritorial | 2016 |
| RHA Consulting Ltd | Construction | 2022 |
| RHD Technology Co., Ltd | Extraterritorial | 2019 |
| Rhizo Ltd | Administrative & support | 2023 |
| RHL (Reddish) Limited | Construction | 2018 |
| RHS Dental Laboratory Limited | Health & social care | 2009 |
| Ri-Kai International Trading Co., Ltd | Extraterritorial | 2021 |
| RIC Industries Equipment Ltd | Extraterritorial | 2020 |
| Rich Taste International Trade Co., Ltd | Extraterritorial | 2015 |
| Rich Unitech Limited | Information & communication | 2025 |
| Rich York International Limited | Wholesale & retail | 2014 |
| Richglory Ltd | Wholesale & retail | 2025 |
| Richie’S Trading Company Ltd | Professional & scientific | 2026 |
| Richman Fishers (New Springs) Properties Limited | Wholesale & retail | 2021 |
| Richya Ltd | Wholesale & retail | 2025 |
| Rico Electric Appliance Co., Ltd | Wholesale & retail | 2022 |
| Rico Industries Co., Ltd. | Wholesale & retail | 2021 |
| Rida Industry Co., Ltd | Wholesale & retail | 2018 |
| Ridgewood Care Services Limited | Other services | 2002 |
| Ridgewood Holdings Limited | Real estate | 2002 |
| Ridgewood Property Holdings Limited | Financial services | 2025 |
| Rightol Media Limited | Manufacturing | 2020 |
| Rightreg Limited | Administrative & support | 2020 |
| Rilon Industry Co., Ltd | Wholesale & retail | 2024 |
| RIO Terra Renovation Ltd | Construction | 2019 |
| Risc Technology Group (UK) Ltd. | Manufacturing | 2017 |
| Risdu Industrial and Trade Co., Ltd. | Wholesale & retail | 2016 |
| Rise Medical Limited | Health & social care | 2018 |
| Rishaabh Global Impex Co., Ltd. | Extraterritorial | 2013 |
| Rising High Learning Limited | Administrative & support | 2013 |
| Rising Sun Bio-Tech Co., Ltd. | Extraterritorial | 2019 |
| Riskaya Biotechnology Co., Ltd. | Manufacturing | 2023 |
| Ristech Lift Co., Ltd | Extraterritorial | 2015 |
| Ristemc Industry and Commerce UK Limited | Wholesale & retail | 2024 |
| Ritz Heat Protection Co., Ltd | Extraterritorial | 2015 |
| River R Ltd | Real estate | 2025 |
| Riverbird Films Limited | Professional & scientific | 2023 |
| Rivertex International Company Limited | Wholesale & retail | 2022 |
| Riwin International FAR East Ltd | Extraterritorial | 2018 |
| Riya Chambers Limited | Real estate | 2013 |
| RJ Cooper Health Ltd | Health & social care | 2016 |
| RJ Residential Ltd | Households | 2023 |
| Rjjo Limited | Real estate | 2016 |
| RK87 Consulting Ltd | Professional & scientific | 2024 |
| RKA3 Limited | Real estate | 2023 |
| RL Performance Ltd | Professional & scientific | 2017 |
| RLT Int'L Limited | Extraterritorial | 2013 |
| RMA Cleaning Services Limited | Other services | 2013 |
| Rmanrland Limited | Wholesale & retail | 2021 |
| Rmfl Limited | Real estate | 2022 |
| RN Levett Locum Limited | Professional & scientific | 2016 |
| RO Kafe Co., Ltd | Extraterritorial | 2012 |
| Roach-Bowler Consulting Limited | Professional & scientific | 2011 |
| Road Dreams Industries Ltd. | Manufacturing | 2005 |
| Roadelm Limited | Other services | 2015 |
| Roadlink Automotive International Limited | Wholesale & retail | 2026 |
| Robelectric Ltd | Construction | 2019 |
| Robert Bohlke Ltd | Information & communication | 2018 |
| Robert Building Service Ltd | Construction | 2012 |
| Roberts Windows Limited | Manufacturing | 1999 |
| Robot Power Plant Ltd | Manufacturing | 2020 |
| Robot Technology Co., Ltd | Wholesale & retail | 2023 |
| Robot Vision Co., Ltd | Manufacturing | 2013 |
| Robust Detail Apac Ltd. | Information & communication | 2025 |
| Robustel IOT Solution (UK) Ltd | Wholesale & retail | 2024 |
| Robyn's Rocket CIC | Arts & recreation | 2026 |
| Rocha Services Ltd | Other services | 2022 |
| Rock Hill Group Ltd | Extraterritorial | 2020 |
| Rock Metal Product Co., Ltd | Wholesale & retail | 2016 |
| Rocket Clockhouse Ltd | Hospitality | 2025 |
| Rockfortune Ocean Food Company Limited | Extraterritorial | 2007 |
| Rocneil International Ltd | Extraterritorial | 2020 |
| Roembeck Ltd | Extraterritorial | 2017 |
| Rogues of the Gypsy Moon Limited | Information & communication | 2022 |
| Rolls (International) Group Co., Limited | Extraterritorial | 2020 |
| Roman and Archer Developments Ltd | Real estate | 2023 |
| Romani in UK Media Group Ltd | Administrative & support | 2012 |
| Romi Projects Limited | Wholesale & retail | 2024 |
| Ronchem Industry Limited | Extraterritorial | 2018 |
| Rongqiao Machinery Co., Ltd. | Extraterritorial | 2022 |
| Ronshine International Trading Co., Ltd | Professional & scientific | 2015 |
| Room for One More Property Management Ltd | Real estate | 2015 |
| Rooted Families Limited | Health & social care | 2026 |
| Roraima Investments Limited | Real estate | 2025 |
| Rorychemical Group Ltd | Wholesale & retail | 2013 |
| Rosaina (UK) International Co., Ltd | Manufacturing | 2019 |
| Roschen Group Limited | Wholesale & retail | 2023 |