| Rosedene Hardwick Limited | Real estate | 2014 |
| Rosedene Northallerton Limited | Education | 2001 |
| Rosedene Nurseries Limited | Education | 2002 |
| Rosewood Recycling Limited | Water & waste | 2010 |
| Roseworth Accountancy Ltd | Professional & scientific | 2006 |
| Ross Jones Offshore Ltd | Professional & scientific | 2024 |
| Ross Metcalf Ltd | Professional & scientific | 2026 |
| Ross's Nails Ltd | Other services | 2023 |
| Rotating & Mechanical Ltd | Construction | 2026 |
| Rotating Equipment Services Limited | Manufacturing | 2023 |
| Roto Trade Limited | Wholesale & retail | 2011 |
| Rototech Limited | Manufacturing | 2015 |
| Rotten Scoundrels Ltd | Other services | 2017 |
| Route X Logistics Ltd | Transport & logistics | 2025 |
| Rowdens Autos Ltd | Wholesale & retail | 2026 |
| Rowgrace Ltd | Professional & scientific | 2015 |
| Rowley's Rope Access Limited | Construction | 2017 |
| Rownovate Ltd | Financial services | 2025 |
| Rownovate Properties Ltd | Real estate | 2025 |
| Royaproperties Ltd | Real estate | 2024 |
| Royle Eleven Ltd | Wholesale & retail | 2020 |
| Rozazada Ltd | Real estate | 2026 |
| RPC Manor Ltd | Hospitality | 2018 |
| RPJ Welding Ltd | Construction | 2026 |
| Rpsg Limited | Information & communication | 2020 |
| RR Fishing Limited | Agriculture & fishing | 2018 |
| RR GAS & Heating Services Ltd | Construction | 2020 |
| RR PE (Promotions & Events) Limited | Arts & recreation | 2017 |
| RR Trading & Investments Limited | Wholesale & retail | 2022 |
| RS Automotive Care Ltd | Wholesale & retail | 2022 |
| RS Quality Services (NE) Ltd | Professional & scientific | 2019 |
| RSC Holdings (Leeds) Ltd | Professional & scientific | 2020 |
| RSG Hair and Beauty Ltd | Other services | 2025 |
| Rsjl Property Ltd | Real estate | 2025 |
| Rsrconsultancyuk Ltd | Construction | 2019 |
| RST Project Management Ltd | Professional & scientific | 2014 |
| RTG Lifting Ltd | Manufacturing | 2025 |
| RTN Digital Ltd | Professional & scientific | 2025 |
| RTN Group Ltd | Professional & scientific | 2023 |
| RTR Precision Engineering Limited | Professional & scientific | 2009 |
| RTS Investments (NE) Ltd | Real estate | 2020 |
| RTS Wind Ltd | Administrative & support | 2005 |
| Ruben Property Holdings Ltd | Real estate | 2022 |
| Ruby Aesthetics Ltd | Health & social care | 2019 |
| Ruby Housing Limited | Real estate | 2007 |
| Rubyemerald Limited | Real estate | 2025 |
| Rude Grooming Yarm Limited | Other services | 2016 |
| Rudimentary Studios Ltd | Information & communication | 2022 |
| Rukara Limited | Wholesale & retail | 2024 |
| Rulesark Limited | Professional & scientific | 2023 |
| Running Flowers Ltd | Wholesale & retail | 2015 |
| Ruraence Ltd | Professional & scientific | 2022 |
| Russell Aggregates Limited | Construction | 2017 |
| Russlin Engineering Limited | Professional & scientific | 2022 |
| Rusticallywelded Ltd | Manufacturing | 2019 |
| Rutland Medical Solutions Ltd. | Health & social care | 2018 |
| RV Quality Inspections Ltd | Professional & scientific | 2024 |
| Rvltn Ltd | Wholesale & retail | 2025 |
| RW Build Ltd | Construction | 2025 |
| RW Electrical Services and Property Limited | Construction | 2014 |
| RW Readshaw Ltd | Transport & logistics | 2026 |
| Rwilsonrigging Limited | Construction | 2026 |
| RX Services Ltd | Information & communication | 2025 |
| Ryan Carne Hair Ltd | Other services | 2019 |
| Ryan Connelly Limited | Financial services | 2023 |
| Ryan Electrical Services Ltd | Energy | 2021 |
| Ryans Reliable Recovery Ltd | Wholesale & retail | 2024 |
| RYK (NE) Limited | Construction | 2023 |
| Ryloth Analytics Limited | Professional & scientific | 2011 |
| S & C Whitehead Limited | Wholesale & retail | 2015 |
| S & D Landlord & Property Services Limited | Real estate | 2018 |
| S & D Rooms Ltd | Real estate | 2024 |
| S & J Letting Ltd | Real estate | 2019 |
| S & M Foods (NE) Ltd | Hospitality | 2021 |
| S & R J Hugill Ltd | Agriculture & fishing | 2024 |
| S & R Tech Limited | Wholesale & retail | 2021 |
| S & S Inspection Services Ltd | Manufacturing | 2018 |
| S & S Investments (North East) Limited | Financial services | 2017 |
| S a Day Care Ltd | Education | 2014 |
| S Abrook Installations Ltd | Construction | 2014 |
| S and a Khan Properties Limited | Real estate | 2021 |
| S and S Consortium Limited | Wholesale & retail | 2017 |
| S B Enforcement Ltd | Professional & scientific | 2018 |
| S Boarder Electrical Limited | Manufacturing | 2015 |
| S Bunn Services Ltd | Construction | 2022 |
| S C Henderson & SON Limited | Construction | 2010 |
| S C Wind Tech Ltd | Professional & scientific | 2023 |
| S Corke Consultancy Ltd | Financial services | 2012 |
| S Donaghy Production & Operation Services Limited | Mining & quarrying | 2018 |
| S E Consultancy Limited | Information & communication | 2012 |
| S F Fencing Limited | Construction | 2021 |
| S G B Blade Repairs Ltd | Professional & scientific | 2025 |
| S Hunt HVR Limited | Construction | 2017 |
| S Hussain Locum Ltd | Health & social care | 2020 |
| S Innocent Limited | Real estate | 2018 |
| S J and D E L Ltd | Agriculture & fishing | 2013 |
| S J G Telecoms Limited | Information & communication | 2017 |
| S J Planning Limited | Professional & scientific | 2015 |
| S Macg Services Limited | Professional & scientific | 2019 |
| S Owen Construction Limited | Construction | 2013 |