| Ritchie’S Ltd | Transport & logistics | 2026 |
| Ritem TM Ltd | Public administration | 2025 |
| Ritra Container Line Ltd | Other services | 2017 |
| Rivaco (Holdings) Ltd | Real estate | 2025 |
| Rive Hair Limited | Manufacturing | 2026 |
| Rivendell Medical Limited | Health & social care | 2014 |
| River Freeholds Limited | Real estate | 2012 |
| Riverhead Asset Finance Ltd | Financial services | 2010 |
| Riverhead Asset Management Limited | Real estate | 2016 |
| Rivershore Limited | Wholesale & retail | 2019 |
| Riverside Building & Joinery Ltd | Construction | 2026 |
| Riverside Cows Ltd | Hospitality | 2022 |
| Riverside Design & Development Limited | Wholesale & retail | 2007 |
| Riverside Motors (Doncaster) Limited | Wholesale & retail | 1982 |
| Riverside Motors (Wakefield) Ltd | Wholesale & retail | 2021 |
| Riverside Motors Holdings Limited | Professional & scientific | 1997 |
| Riverside Vehicle Storage Ltd | Transport & logistics | 2026 |
| Riverside Wakefield Limited | Wholesale & retail | 2018 |
| Riversolutions Holding Limited | Financial services | 2025 |
| Riverson Developments Limited | Construction | 2019 |
| Riverstone Exterior Property Management Ltd | Construction | 2026 |
| Riverstone Works Ltd | Extraterritorial | 2026 |
| Riviera Group Holdings & Investments Ltd | Financial services | 2025 |
| Riviera Prom Ltd | Wholesale & retail | 2023 |
| Riviera Sunbeds Limited | Other services | 2001 |
| Rivington Warrant Services Limited | Administrative & support | 2022 |
| RJ Earthmoving Ltd | Construction | 2019 |
| RJ Electrical Contractors Ltd | Construction | 2014 |
| RJ Haith Engineering Services Ltd | Professional & scientific | 2025 |
| RJ Metaldesign Ltd | Manufacturing | 2025 |
| RJ Movers Ltd | Transport & logistics | 2025 |
| RJ Property Services Ltd | Real estate | 2020 |
| RJ Residence Ltd | Real estate | 2024 |
| RJ Roofing Services Ltd | Construction | 2023 |
| Rjaywardracing Ltd | Arts & recreation | 2010 |
| RJB Consulting Ltd | Professional & scientific | 2025 |
| RJG Rigging Ltd | Construction | 2018 |
| RJH Flooring (Doncaster) Ltd | Construction | 2012 |
| RJL Property Services (Doncaster) Ltd | Real estate | 2024 |
| RJS Rail Training Ltd | Construction | 2025 |
| RJS Vehicle Recovery and Plant Hire Limited | Administrative & support | 2025 |
| RJV Property Holdings Ltd | Real estate | 2020 |
| RJV Property Solutions Ltd. | Construction | 2019 |
| RK Raja Investments Limited | Real estate | 2022 |
| RKK Transport Services Limited | Transport & logistics | 2023 |
| RKP Associates Limited | Professional & scientific | 2019 |
| Rkts Ltd | Other services | 2009 |
| RL Catering Services Limited | Hospitality | 2011 |
| Rlbs Limited | Manufacturing | 2002 |
| RLC Rockets Limited | Arts & recreation | 2010 |
| Rldht Ltd | Health & social care | 2017 |
| RLG Engineering Services Limited | Professional & scientific | 2025 |
| RLM Client Services Limited | Administrative & support | 2016 |
| RLP Painting Contractors Ltd | Construction | 2002 |
| RLR Capital Estates Ltd | Real estate | 2026 |
| RLR Dynamics Ltd | Transport & logistics | 2025 |
| RM Bars (Bentley) Limited | Hospitality | 2023 |
| RM Construction & Consultants Limited | Professional & scientific | 2026 |
| RM Engineering Consultants Ltd | Construction | 2024 |
| RM Home Renovations Ltd | Construction | 2026 |
| RM Repairs Limited | Administrative & support | 2005 |
| RM Services and Supplies Ltd | Construction | 2025 |
| RM Sports Bar Limited | Hospitality | 2024 |
| RM Sports Events Ltd | Other services | 2019 |
| RM Telecommunications Limited | Information & communication | 2015 |
| RM Traffic Management Ltd | Public administration | 2024 |
| RM Wholesale Services Limited | Wholesale & retail | 2025 |
| RM Works (Doncaster) Ltd | Professional & scientific | 2019 |
| Rmac Decor Limited | Construction | 2013 |
| RMB Consulting Ltd | Information & communication | 2025 |
| RMC Developments Ltd | Real estate | 2025 |
| RMC Plumbing Ltd | Construction | 2021 |
| RMG HGV & Tyres Ltd | Wholesale & retail | 2025 |
| RMO Trans Ltd | Transport & logistics | 2019 |
| RMR Builders Limited | Construction | 2002 |
| RMS Coaches Ltd | Transport & logistics | 2023 |
| RMS Trading Way Ltd | Transport & logistics | 2026 |
| RMU Ltd | Extraterritorial | 2021 |
| RMV Machinery Sales Limited | Wholesale & retail | 2022 |
| RMY Investments Ltd | Real estate | 2025 |
| RN Claims Ltd | Professional & scientific | 2026 |
| RN Heat & Power Limited | Construction | 2016 |
| RNB Overhauls Ltd | Manufacturing | 2023 |
| RNS Renovations Limited | Construction | 2022 |
| RO Designs Furniture Ltd | Manufacturing | 2025 |
| Road to Rome Limited | Construction | 2025 |
| Roadcrest Fast Transport Ltd | Extraterritorial | 2026 |
| Roadmaster Freight Ltd | Transport & logistics | 2025 |
| Roadmasters Logistics Ltd | Transport & logistics | 2023 |
| Roadside Inns & Taverns Limited | Hospitality | 2026 |
| Roam TEC Limited | Administrative & support | 2025 |
| Roamer Wheels Ltd | Transport & logistics | 2025 |
| Roan Joinery Contractors Ltd | Construction | 2022 |
| Roandy Limited | Financial services | 2010 |
| ROB Clarke Electrical Limited | Construction | 2016 |
| Rob's Auto Ltd | Wholesale & retail | 2025 |
| Robbos Ltd | Real estate | 2021 |
| Robert Courier Services Limited | Transport & logistics | 2020 |
| Robert Gray Dairy Ltd | Wholesale & retail | 2015 |
| Robert S UK Route Transport Ltd | Transport & logistics | 2020 |