| Retcond Limited | Information & communication | 2025 |
| Rethink Retrofit CIC | Professional & scientific | 2024 |
| Rethink Workplace Group Limited | Professional & scientific | 2024 |
| Retro Ltd | Extraterritorial | 2012 |
| Revcastle Ltd | Information & communication | 2009 |
| Revely Consultancy Limited | Professional & scientific | 2016 |
| Revison Ltd | Wholesale & retail | 2020 |
| Revive Craft Ltd | Construction | 2025 |
| Revive Spaces Group Ltd | Construction | 2024 |
| Revo Kitchens Limited | Wholesale & retail | 2022 |
| Revolve Moto Limited | Wholesale & retail | 2025 |
| Reworks Architects Ltd | Professional & scientific | 2024 |
| REX Cinema Promotions (Dewsbury) Limited | Real estate | 1962 |
| Reyn Group Ltd | Professional & scientific | 2025 |
| Rezbs Ltd | Information & communication | 2022 |
| RFB Consultancy Ltd | Professional & scientific | 2021 |
| RFM Facilities Management Ltd | Construction | 2008 |
| RFM M&E Limited | Construction | 2008 |
| RFM Operations Centre Limited | Administrative & support | 2018 |
| RGL Advisory Ltd | Administrative & support | 2025 |
| RH Geotech Ltd | Professional & scientific | 2025 |
| Rheom Renovations Limited | Construction | 2025 |
| RHK Advisory Limited | Financial services | 2022 |
| Rhodes CRE Limited | Professional & scientific | 2017 |
| Rhodes Wood Harrogate Limited | Wholesale & retail | 2015 |
| Rhqs Limited | Construction | 2015 |
| Rianalysis Limited | Information & communication | 2010 |
| Ribbon and Ride Ltd | Administrative & support | 2025 |
| Rica Analytics Limited | Information & communication | 2024 |
| Riccomaxx Group Limited | Wholesale & retail | 2024 |
| Rich White Design Ltd | Professional & scientific | 2012 |
| RICH1E Limited | Extraterritorial | 2020 |
| Richard Campagna Consulting Ltd | Professional & scientific | 2022 |
| Richard Eves Architects LLP | | 2013 |
| Richard Grange & SON Limited | Administrative & support | 2018 |
| Richard Hinchcliffe Ltd | Information & communication | 2014 |
| Richardgorvinestates Ltd | Real estate | 2022 |
| Richards & Co Property Auctions Limited | Wholesale & retail | 2025 |
| Richards & Richards Limited | Real estate | 2023 |
| Richards Brown Limited | Professional & scientific | 2012 |
| Richards Medical Limited | Health & social care | 2023 |
| Richardson Clark Limited | Real estate | 2000 |
| Richardson Lightfoot Limited | Administrative & support | 2021 |
| Richer Ltd | Extraterritorial | 2012 |
| Richest Consulting Ltd | Information & communication | 2014 |
| Richmond Hill Cottages Ltd | Hospitality | 2022 |
| Rickard Partners Ltd | Professional & scientific | 2025 |
| Ricomex UK Limited | Manufacturing | 2012 |
| Riding the Waves Ltd | Hospitality | 2023 |
| Ridings Services Limited | Administrative & support | 2002 |
| Rifa for Trade Ltd | Wholesale & retail | 2021 |
| RIG Partners Ltd | Professional & scientific | 2021 |
| Rigton Estates Limited | Professional & scientific | 2013 |
| Rigton Holdings Ltd | Real estate | 2014 |
| Rilex Investments Ltd | Construction | 2023 |
| RIO Consulting Ltd | Professional & scientific | 2024 |
| Riolto Ltd | Administrative & support | 2014 |
| Ripley Asset Management Limited | Professional & scientific | 2010 |
| Ripley Cars Limited | Wholesale & retail | 2007 |
| Ripley Consultants Limited | Professional & scientific | 2003 |
| Ripley Electrical & Plumbing Limited | Construction | 2003 |
| Ripley GIN Ltd | Manufacturing | 2024 |
| Ripley Ices Limited | Wholesale & retail | 2020 |
| Ripley Stores Ltd | Wholesale & retail | 2005 |
| Ripon Deli Ltd | Wholesale & retail | 2013 |
| Ripon Road Flats (Harrogate) Limited | Households | 1986 |
| Rise North Ltd | Information & communication | 2019 |
| Rise Wealth Limited | Financial services | 2024 |
| RISH1 Limited | Extraterritorial | 2020 |
| Rising Scaffolds Ltd | Construction | 2024 |
| Ritzy Wrap'Rz Ltd. | Extraterritorial | 2011 |
| Riva Hill Farms Limited | Extraterritorial | 1976 |
| Riveaux Estates Limited | Real estate | 1962 |
| Riveaux Limited | Real estate | 1977 |
| Riversdale Court Company Limited | Households | 1981 |
| Riverside Lodges Limited | Hospitality | 2025 |
| Riverside Lodges Property Limited | Real estate | 2025 |
| Riverside Mull Limited | Hospitality | 2022 |
| Riverside Waste Machinery Limited | Wholesale & retail | 2011 |
| Riverstones Fine Jewellery Limited | Wholesale & retail | 2009 |
| Riviere Limited | Wholesale & retail | 2024 |
| RJA Restorations Ltd | Manufacturing | 2024 |
| RJC Acquisitions Ltd | Real estate | 2024 |
| RJH54 Property Holdings Ltd | Real estate | 2018 |
| RJK Enterprise Risk Solutions Limited | Professional & scientific | 2024 |
| RJP Appointed Person Services Ltd. | Professional & scientific | 2015 |
| RJW Design Studio Ltd | Professional & scientific | 2025 |
| Rjxf Ltd | Professional & scientific | 2020 |
| RK Pure Clean Ltd | Other services | 2025 |
| RK Recruit Ltd | Administrative & support | 2014 |
| RK Vehicle Sales Ltd | Wholesale & retail | 2025 |
| RK Works Limited | Manufacturing | 2025 |
| RKCH2026 Ltd | Health & social care | 2026 |
| RKD Ltd | Wholesale & retail | 2018 |
| RLM Parker Limited | Financial services | 2019 |
| RLO and TEO Investment Company | Administrative & support | 2015 |
| RLS Finance Limited | Professional & scientific | 2018 |
| RLS Joinery and Construction Limited | Construction | 2015 |
| Rlsecure Ltd | Wholesale & retail | 2025 |
| RM Contracts (Yorkshire) Ltd | Construction | 2026 |