| Rafkins (Lincoln Pelham Centre) Limited | Real estate | 2021 |
| Rafkins (Scunthorpe) Leisure Park Holdings Limited | Financial services | 2024 |
| Rafkins (Scunthorpe) Leisure Park Limited | Real estate | 2014 |
| Rafkins (Thetford) Limited | Real estate | 2021 |
| Rafkins Hotels Ltd | Hospitality | 2015 |
| Rafkins Properties Limited | Real estate | 2012 |
| Rafkins SC (Linwood) Leisure Park Limited | Real estate | 2016 |
| Raft(Up) Magazine Community Interest Company | Information & communication | 2024 |
| Raga' Foods Ltd | Manufacturing | 2022 |
| Rags and Buffing Ltd | Administrative & support | 2018 |
| RAGS2RICHES Limited | Information & communication | 2004 |
| Rahi Limited | Financial services | 2019 |
| Rahim Group Limited | Professional & scientific | 2016 |
| Rahim International Foundation | Other services | 2013 |
| Rail Butu Ltd | Construction | 2021 |
| Raiman Associates Limited | Professional & scientific | 2009 |
| Rainbird Close Management Company Limited | Real estate | 2018 |
| Rainbow CNC Limited | Administrative & support | 2008 |
| Rais Group Limited | Real estate | 2022 |
| Raisins Hill Investment Ltd | Financial services | 2020 |
| Raiyani Enterprise Ltd | Wholesale & retail | 2026 |
| RAJ ABC Ltd | Wholesale & retail | 2025 |
| RAJ Indian Fusion Limited | Hospitality | 2026 |
| RAJ Tailor UK Limited | Wholesale & retail | 2024 |
| Raja Athzaz ALI Limited | Administrative & support | 2013 |
| Raja Property and Management Limited | Real estate | 2016 |
| Raja Rarc Service Ltd | Professional & scientific | 2026 |
| Raja Solutions Ltd | Professional & scientific | 2024 |
| Rajashree Builder Limited | Construction | 2019 |
| Rajdhani Foods Ltd | Hospitality | 2022 |
| Rajesh Tailoring Ltd | Wholesale & retail | 2025 |
| Rajesh Thakrar & Co. Ltd | Professional & scientific | 2016 |
| Rajj Construction Limited | Construction | 2022 |
| Rajni Global Enterprises Ltd | Wholesale & retail | 2025 |
| Rajvi Trade Ltd | Professional & scientific | 2025 |
| Rajvi Transport Ltd | Transport & logistics | 2025 |
| RAK Finance Corporation Limited | Other services | 2012 |
| RAK Fuel Services Ltd | Wholesale & retail | 2025 |
| Raku Property Limited | Real estate | 2021 |
| Ralz Ltd | Health & social care | 2025 |
| RAM Diagnostics Ltd | Health & social care | 2026 |
| RAM Plumbing & Heating Ltd | Construction | 2018 |
| RAM Snacks and Savouries Ltd | Wholesale & retail | 2025 |
| Rama Cars Ltd | Transport & logistics | 2022 |
| Ramabejos Ltd | Administrative & support | 2015 |
| Ramah Ltd | Information & communication | 2007 |
| Ramasat Perfumes Ltd | Wholesale & retail | 2024 |
| Ramba & Govardhan Ltd | Real estate | 2025 |
| Ramesh Global Investments Limited | Real estate | 2025 |
| Ramisetty Property Services Limited | Real estate | 2020 |
| Ramp Windoors Limited | Construction | 2023 |
| Ramsey Varas Properties Ltd | Real estate | 2017 |
| Ramsons Impex UK Limited | Wholesale & retail | 2009 |
| Rana & Sons Estates Ltd | Real estate | 2024 |
| Random Trees UK Ltd | Information & communication | 2022 |
| Rangers Securities Ltd | Administrative & support | 2026 |
| Rangoli Textiles Limited | Wholesale & retail | 2012 |
| Ranya Clinic Ltd | Other services | 2025 |
| RAO & Sons Accountants Ltd | Professional & scientific | 2026 |
| Raos Properties Limited | Real estate | 2024 |
| Rapid Power Solution Limited | Construction | 2018 |
| Rapidus Finance Limited | Financial services | 2022 |
| Rapier London Ltd | Professional & scientific | 2018 |
| Raptor Supplements Limited | Hospitality | 2025 |
| RAR Inverness Limited | Real estate | 2019 |
| Rashan Limited | Wholesale & retail | 2018 |
| Rasuli Care Services Ltd | Health & social care | 2024 |
| Rasvik Estates Ltd | Real estate | 2024 |
| Rata Development Ltd | Construction | 2019 |
| Rathod Catering Limited | Hospitality | 2025 |
| Rathy Sarees London Limited | Wholesale & retail | 2024 |
| Ratna Marble Ltd | Construction | 2016 |
| Ratna Trading UK Limited | Wholesale & retail | 2010 |
| Ratna Works Ltd | Health & social care | 2023 |
| Raut Designs Limited | Professional & scientific | 2026 |
| RAV Soft Drinks Ltd | Wholesale & retail | 2026 |
| RAV Textile Ltd | Wholesale & retail | 2025 |
| Ravah Limited | Professional & scientific | 2019 |
| Ravi Builders Ltd | Construction | 2022 |
| Ravi Properties Ltd | Real estate | 2025 |
| Ravi Shankar Ltd | Financial services | 2021 |
| Ravity Limited | Information & communication | 2022 |
| Rawaq Media Ltd | Manufacturing | 2025 |
| RAY of Hope People | Health & social care | 2010 |
| RAY Tower Stone Ltd | Wholesale & retail | 2023 |
| Ray's Top Services Ltd | Wholesale & retail | 2014 |
| Rayan Catering Ltd | Hospitality | 2018 |
| Raymax Europe Limited | Information & communication | 2019 |
| Rays International Limited | Wholesale & retail | 2025 |
| Rayway Limited | Construction | 2017 |
| Razvan Transport Ltd | Transport & logistics | 2021 |
| RB Welding and Fabrication Ltd | Manufacturing | 2024 |
| RBI Express Limited | Transport & logistics | 2026 |
| RC Investments London Ltd | Real estate | 2018 |
| RC1 Services Ltd | Administrative & support | 2023 |
| Rcaai Ltd | Information & communication | 2025 |
| RCK IT Consultants Ltd | Information & communication | 2016 |
| RCM Cleaning Ltd | Administrative & support | 2020 |
| Rcpn Limited | Real estate | 2025 |
| RCT Crystal Clear Clarity Services Limited | Administrative & support | 2025 |