| Repulsive Records Limited | Information & communication | 2020 |
| RES Fabrications Ltd | Manufacturing | 2022 |
| Rescom Property Services Ltd | Administrative & support | 2019 |
| Research Clinical Limited | Professional & scientific | 2013 |
| Resicap Limited | Real estate | 2013 |
| Residential Capital (Bramley) Limited | Real estate | 2015 |
| Residential Capital (Harrogate) Limited | Construction | 2017 |
| Residential Capital (Meridian House) Limited | Real estate | 2017 |
| Resolute INK Limited | Wholesale & retail | 2025 |
| Response Plant Services Limited | Manufacturing | 2018 |
| Restart Business Turnaround Insolvency Limited | Administrative & support | 2018 |
| Restaurant 19 Limited | Hospitality | 2010 |
| Restyle Property Ltd | Construction | 2016 |
| Retail-It Consultants Limited | Professional & scientific | 2009 |
| Retford Pine Limited | Wholesale & retail | 2003 |
| Rethink Business Consulting Limited | Professional & scientific | 2022 |
| Retro ARK Limited | Information & communication | 2011 |
| REV31L Investments Limited | Professional & scientific | 2020 |
| REV31L Limited | Professional & scientific | 2020 |
| Revco Self Storage Ltd | Transport & logistics | 2023 |
| Revco Site Services Ltd | Administrative & support | 2017 |
| Revival Beds Limited | Wholesale & retail | 2018 |
| Revtech Auto Repair Ltd | Wholesale & retail | 2025 |
| Revélo PB Ltd | Manufacturing | 2024 |
| Rework Services Ltd | Professional & scientific | 2024 |
| Rezolution ICT Ltd | Information & communication | 2022 |
| RF Laboratory Design Ltd | Professional & scientific | 2012 |
| RF5 Ltd | Wholesale & retail | 2017 |
| RFP Partners 2 Ltd | Administrative & support | 2025 |
| RFP Partners Ltd | Professional & scientific | 2023 |
| RG Houses Limited | Real estate | 2018 |
| RGC Property Lettings Limited | Extraterritorial | 2016 |
| RH Motors (Chesterfield) Limited | Wholesale & retail | 2018 |
| RH Plumbing and Bathrooms Ltd | Construction | 2025 |
| RH Site Services Ltd | Construction | 2026 |
| Rhino Heating, GAS and Plumbing Ltd | Administrative & support | 2018 |
| Rhodes 2 Rail Consultants Limited | Construction | 2015 |
| Rhodesia Gardens Service Company Limited | Real estate | 1988 |
| Rhqc Limited | Other services | 2007 |
| RHS Operational Matters Limited | Professional & scientific | 2012 |
| RHUBARB@131 Ltd | Hospitality | 2025 |
| Rhycon Properties Limited | Real estate | 2020 |
| Rhythm Zero Ltd | Wholesale & retail | 2025 |
| Riber Cctv Hire Limited | Administrative & support | 2021 |
| Riber Holdings Ltd | Financial services | 2023 |
| Riber Products Limited | Manufacturing | 2011 |
| Riber Security and Investigations Limited | Administrative & support | 1973 |
| Riber Security Monitoring Limited | Administrative & support | 2002 |
| Riber Surveillance Limited | Administrative & support | 2006 |
| Richard Howell Limited | Construction | 2007 |
| Richard Knowles Limited | Wholesale & retail | 2003 |
| Richard Timperley Limited | Other services | 2014 |
| Richard Turner Limited | Construction | 1995 |
| Richard's Joinery Ltd | Construction | 2015 |
| Richards Residential Homes Limited | Construction | 1970 |
| Richardson and Associates Limited | Professional & scientific | 2005 |
| Richardson Machine Tool Services Limited | Manufacturing | 2002 |
| Richardson Solutions Ltd | Professional & scientific | 2016 |
| Richardsons Property Management Limited | Real estate | 2023 |
| Richardus Properties Limited | Real estate | 2024 |
| Richwoodtreeservices Limited | Agriculture & fishing | 2020 |
| Rida Transport Ltd | Transport & logistics | 1997 |
| Ride Commercial Limited | Financial services | 2022 |
| Ridgeway Preschool Limited | Education | 2023 |
| Right Property Design Ltd | Construction | 2019 |
| RIGHT4STAFF Ltd | Administrative & support | 1996 |
| Rikshawaz UK Ltd | Hospitality | 2026 |
| Rillatech Limited | Manufacturing | 1982 |
| Ring Property Rentals Limited | Real estate | 2024 |
| Ringmaster Solutions Ltd | Administrative & support | 2024 |
| Ringwood Hall Investments Limited | Health & social care | 2012 |
| Rino Industries Limited | Professional & scientific | 1996 |
| Riomar Holdings Limited | Financial services | 2019 |
| Ripley Bars & Pubs Ltd | Hospitality | 2018 |
| Ripo Solutions Limited | Information & communication | 2024 |
| Rippleglen Limited | Wholesale & retail | 1979 |
| Rippon Homes BLG Limited | Construction | 2016 |
| Rippon Homes Heritable Limited | Construction | 2016 |
| Rippon Homes Old Dalby Limited | Construction | 2018 |
| Rippon Homes Ruskington Limited | Construction | 2020 |
| Rippon Homes Skegby Limited | Construction | 2017 |
| Rippon Homes Welton Limited | Construction | 2016 |
| Rippon Homes Woodhall Spa LLP | | 2022 |
| Rippon Homes Worksop Limited | Construction | 2017 |
| Rise Investments 34 Ltd | Real estate | 2018 |
| Rise Investments 35 Ltd | Real estate | 2018 |
| Rivelin Estates Limited | Construction | 2005 |
| River Springs Digital Ltd | Information & communication | 2023 |
| River Springs Group Ltd | Financial services | 2024 |
| River Springs Ltd | Information & communication | 2014 |
| River Springs Property Management Limited | Real estate | 2016 |
| Riverdale Investments Limited | Real estate | 2019 |
| Riverside (Brimington) Management Company Limited | Real estate | 2005 |
| Riverside Fish & Chip Bar Limited | Hospitality | 2023 |
| Riverside Motor Company (2009) Limited | Wholesale & retail | 2009 |
| Rizkalla Dental Limited | Health & social care | 2025 |
| Rjay and Co Limited | Wholesale & retail | 2015 |
| RJB Landscapes Limited | Administrative & support | 2025 |
| RJF Developments Limited | Administrative & support | 2024 |
| RJJ Luxury Properties Ltd | Real estate | 2026 |