| Rosha Fashion Industries Limited | Wholesale & retail | 2019 |
| Roshan Travel Services Limited | Administrative & support | 2023 |
| Roshanne Estates Ltd | Real estate | 2025 |
| Roshd Ltd | Real estate | 2020 |
| Roshni & Poonam Limited | Real estate | 2014 |
| Rosie Made a Thing Limited | Manufacturing | 2017 |
| Rosie Robin PUB Company Ltd | Hospitality | 2026 |
| Rosinamarf Limited | Health & social care | 2025 |
| Roslin Elmore Ltd | Wholesale & retail | 2025 |
| Ross Castors Ltd | Extraterritorial | 2011 |
| Ross Handling Limited | Manufacturing | 1977 |
| Ross Strategies Ltd | Health & social care | 2024 |
| Ross Walk Launderette Limited | Other services | 2021 |
| Ross Wilson Decorating Services Limited | Construction | 2016 |
| Rossas Limited | Hospitality | 2015 |
| Rossells Security Ltd | Other services | 2004 |
| Rossi Stone Surfaces Ltd | Manufacturing | 2012 |
| Rosslets Ltd | Households | 2023 |
| Rossward Property Management Company Limited | Real estate | 2007 |
| Rotana Lunch Limited | Manufacturing | 2024 |
| Rotary Engineering (Midlands) Ltd | Manufacturing | 2001 |
| Rotating Limited | Administrative & support | 2003 |
| Rothcare Estates Limited | Real estate | 2000 |
| Rotherwood Healthcare (Waterside) Limited | Extraterritorial | 2015 |
| Rothingham Sterne Ltd | Wholesale & retail | 2025 |
| Rothley Cars Limited | Wholesale & retail | 2025 |
| Rothley Church of England Primary School | Education | 2013 |
| Rothley Group Limited | Financial services | 2022 |
| Rothley Holdings Limited | Financial services | 2019 |
| Rothley Law Limited | Professional & scientific | 2022 |
| Rothley Park Properties Limited | Hospitality | 2025 |
| Rothley Stone Work Ltd | Construction | 2023 |
| Rothley Tiling Ltd | Construction | 2019 |
| Roti & Co Limited | Hospitality | 2021 |
| Roti & Curry Junction Original Ltd | Hospitality | 2010 |
| Rotormotion Food Limited | Professional & scientific | 2015 |
| Rotormotion Midlands Limited | Professional & scientific | 2000 |
| Rouco Limited | Wholesale & retail | 1988 |
| Round Coffee Ltd | Manufacturing | 2026 |
| Round Labs Ltd | Information & communication | 2016 |
| Roundhayes Farm Management Company Limited | Administrative & support | 2000 |
| Roundhill Ltd | Health & social care | 2002 |
| Roundhill Tennis Club Limited(The) | Arts & recreation | 1963 |
| Roundsys Ltd | Information & communication | 2019 |
| Roupa Technologies Ltd | Information & communication | 2026 |
| Route 1 Auto Supplies Ltd | Wholesale & retail | 2015 |
| Route Cars Ltd | Wholesale & retail | 2015 |
| Routes Connect Couriers Ltd | Transport & logistics | 2026 |
| Rovima Ltd | Health & social care | 2016 |
| Roving Books Limited | Wholesale & retail | 1993 |
| ROW Architects Limited | Professional & scientific | 2023 |
| Rowan Consulting (Midlands) Ltd | Professional & scientific | 2018 |
| Rowarth Useful Ltd | Hospitality | 2016 |
| Rowda Group Ltd | Manufacturing | 2015 |
| Rowden Collection Limited | Arts & recreation | 2025 |
| Rowden Estates Limited | Real estate | 2024 |
| Rowden Holdings Limited | Financial services | 2023 |
| Rowden Properties Limited | Real estate | 1998 |
| Rowena Garden Centres Limited | Wholesale & retail | 2024 |
| Rowes Precision Products Limited | Manufacturing | 2009 |
| Rowley Group Holdings Ltd | Financial services | 2024 |
| Rowley Industries Ltd | Wholesale & retail | 2017 |
| Rowley Limited | Professional & scientific | 1991 |
| Rowley Turton (I.F.A.) Limited | Financial services | 1996 |
| Rowleys Group LLP | | 2003 |
| Rowleys Limited | Administrative & support | 2004 |
| Rowsham Logistics Ltd | Transport & logistics | 2014 |
| Rowton Quality Ltd | Transport & logistics | 2015 |
| Rowtox Ltd | Real estate | 2015 |
| Roxanstone Limited | Real estate | 2025 |
| ROXI2025 Ltd | Transport & logistics | 2025 |
| Roxton Transport Ltd | Transport & logistics | 2014 |
| Roxy Home Maintenance Ltd | Construction | 2025 |
| ROY Green Property Management Limited | Real estate | 2014 |
| ROY LEE Plumbing & Heating Ltd | Construction | 2012 |
| ROY Ling Limited | Financial services | 1974 |
| ROY Medical Limited | Health & social care | 2010 |
| ROY Parker Limited | Wholesale & retail | 1975 |
| ROY Services Ltd | Construction | 2019 |
| Royal Aero Club Limited | Other services | 1973 |
| Royal Construction Ltd | Construction | 2024 |
| Royal Enfield UK Limited | Wholesale & retail | 2019 |
| Royal Investment Ltd | Real estate | 2024 |
| Royal Leicestershire, Rutland and Wycliffe Society for the Blind (the) | Health & social care | 1920 |
| Royale Hand Car Wash Ltd | Administrative & support | 2019 |
| Royale Standard Ltd | Financial services | 2019 |
| Royale Transport Ltd | Administrative & support | 2025 |
| Royaltea International Ltd | Financial services | 2026 |
| Royaltea Ltd | Manufacturing | 2005 |
| Royaltea Vending Services Ltd | Wholesale & retail | 2025 |
| Royce Royale Properties Ltd | Real estate | 2026 |
| Royel Construction Limited | Construction | 2017 |
| Royyal PAN & OFF Licence Limited | Wholesale & retail | 2025 |
| Rozeph Ltd | Health & social care | 2021 |
| Rozsi Limited | Administrative & support | 2025 |
| Rozy's Groceries Limited | Wholesale & retail | 2025 |
| RP Capital (UK) Ltd | Financial services | 2020 |
| RP Fashion Limited | Wholesale & retail | 2022 |
| RP Group Trading Ltd | Wholesale & retail | 2023 |
| RP Laundrette and Laundry Services Limited | Other services | 2024 |