| Reyansh Property Development Ltd | Real estate | 2012 |
| Reyt Good Illustration Limited | Arts & recreation | 2021 |
| Reyt Good Local Ltd | Hospitality | 2023 |
| Reytcoffeeco Limited | Manufacturing | 2025 |
| RF Sales Enablement Limited | Information & communication | 2024 |
| RG Corporation Ltd | Health & social care | 2015 |
| RG Oral Health Ltd | Health & social care | 2020 |
| RG Restorations Ltd | Wholesale & retail | 2026 |
| RGA Rail Services Ltd | Construction | 2018 |
| RGC Trading UK Limited | Wholesale & retail | 2020 |
| RGD Doncaster Ltd | Arts & recreation | 2024 |
| Rgeorge Ltd | Transport & logistics | 2020 |
| RGH Consulting Limited | Professional & scientific | 2019 |
| RGK Industrial Management Ltd | Wholesale & retail | 2024 |
| RGR Property Limited | Transport & logistics | 2017 |
| RGS Capital Limited | Financial services | 2020 |
| RH Auto Repairs Ltd | Wholesale & retail | 2012 |
| RH Car Transport Ltd | Transport & logistics | 2015 |
| RH Simtech Ltd | Professional & scientific | 2019 |
| RHA Developments Ltd | Construction | 2023 |
| RHB Property Consulting Ltd | Real estate | 2025 |
| RHC Property Investments Limited | Real estate | 2021 |
| RHH Property Investments Ltd | Real estate | 2020 |
| RHI Developments Ltd | Construction | 2010 |
| Rhino Financial Solutions Ltd | Financial services | 2025 |
| Rhino Ventilation Supplies Limited | Wholesale & retail | 2022 |
| RI Corporation Ltd | Wholesale & retail | 2011 |
| Rich Home Renovation Ltd | Construction | 2021 |
| Richard Baxter Ltd | Administrative & support | 2015 |
| Richard Hutchinson Properties Limited | Real estate | 2025 |
| Richard Kyte Ltd | Other services | 2017 |
| Richard Kyte Properties Ltd | Real estate | 2017 |
| Richard Taylor Limited | Professional & scientific | 2016 |
| Richardson Joinery Limited | Construction | 2003 |
| Richardson Laine Limited | Health & social care | 2015 |
| Richardson Medics Limited | Health & social care | 2023 |
| Richardson Property Developments Ltd | Construction | 2016 |
| Richardsons Bathroom Interiors Ltd | Construction | 2018 |
| Richdeck Care Limited | Health & social care | 2025 |
| Richhayautolinks Ltd | Wholesale & retail | 2024 |
| Richwood Homes Ltd | Real estate | 2024 |
| Rico Property Management Limited | Construction | 2026 |
| Ride Bidco Limited | Manufacturing | 2024 |
| Ridgeback Property Group Ltd | Hospitality | 2023 |
| Ridgewood Developments Limited | Real estate | 2023 |
| Ridgways Garage Ltd | Wholesale & retail | 2010 |
| Ridsdale Ltd | Real estate | 2022 |
| Right ARM Solutions Ltd | Administrative & support | 2017 |
| Right Choice Mortgages Commercial Limited | Financial services | 2024 |
| Right Choice Mortgages Limited | Real estate | 2018 |
| Right Legal Solicitors Ltd | Professional & scientific | 2023 |
| Rightbuild Yorkshire Ltd | Construction | 2017 |
| Rightway Plates Ltd | Wholesale & retail | 2025 |
| Rightway Solutions Group Ltd | Administrative & support | 2020 |
| Rila & JO Trans Ltd | Transport & logistics | 2019 |
| Riljess Limited | Construction | 2017 |
| Rims & Motors Ltd | Wholesale & retail | 2012 |
| Rims Motoring School Ltd | Education | 2015 |
| Rinaztec Ltd | Information & communication | 2023 |
| RIS Consulting Limited | Professional & scientific | 2018 |
| Rise 25 Limited | Professional & scientific | 2024 |
| Rise Dance Company Rotherham Ltd | Arts & recreation | 2021 |
| Rising Edge Corp Limited | Education | 2024 |
| Rising Star BA Ltd | Arts & recreation | 2025 |
| Risingstar Sports CIC | Wholesale & retail | 2025 |
| Ritam Ventures Ltd | Hospitality | 2021 |
| Riverdale Builders Ltd | Construction | 2015 |
| Riverdale Park Management Company Limited | Households | 2019 |
| Riverside Gates & Fencing Limited | Manufacturing | 2001 |
| Riverside Inns York Ltd | Hospitality | 2026 |
| Riverside Roofing & Building Services Limited | Construction | 2024 |
| RIX Home Furnishings Ltd | Wholesale & retail | 2021 |
| Rizq Beverage Co Ltd | Manufacturing | 2025 |
| Rizq Management Ltd | Real estate | 2024 |
| RJ Publishings Limited | Information & communication | 2022 |
| Rjbrannigancomms Limited | Construction | 2022 |
| RJD Installations Limited | Construction | 2012 |
| RJH Installations Limited | Information & communication | 2021 |
| RJM Plastering Ltd | Construction | 2018 |
| RJR Developments Ltd | Construction | 2011 |
| RJY Rigging Limited | Information & communication | 2025 |
| RK & N Properties Ltd | Real estate | 2012 |
| RK Brandsuk Limited | Wholesale & retail | 2021 |
| RK Complete Services Limited | Construction | 2014 |
| RK Propertyuk Limited | Real estate | 2023 |
| Rkay 24/7 Ltd | Transport & logistics | 2023 |
| Rkay Estates Ltd | Real estate | 2026 |
| RKI Services Limited | Administrative & support | 2023 |
| RKK Building Services Ltd | Real estate | 2023 |
| RKK Property Services Ltd | Real estate | 2022 |
| RLA Fire Protection Limited | Construction | 2018 |
| RLJ Construction Limited | Construction | 2014 |
| RLL Consultancy Ltd | Professional & scientific | 2025 |
| RLP Haulage Ltd | Transport & logistics | 2025 |
| RLW Brickwork Limited | Construction | 2026 |
| RM Autoglaze Ltd | Wholesale & retail | 2018 |
| RMB Construction (Wickersley) Ltd | Construction | 2013 |
| RMB CSC Ltd | Health & social care | 2019 |
| RMB Investment Group Ltd | Professional & scientific | 2024 |
| Rmdh Ltd | Construction | 2020 |