| Robinson Flat Roofing Ltd | Construction | 2013 |
| Robinson Gear (Management Services) Limited | Financial services | 1978 |
| Robinson Plumbing and Heating Services Ltd | Construction | 2022 |
| Robinson's Garden Maintenance Ltd | Administrative & support | 2017 |
| Robocodeleicester CIC | Education | 2026 |
| Robocodeuk Leicester Limited | Education | 2025 |
| Roboslot Ltd | Information & communication | 2026 |
| Robot SM (Leicester) Ltd | Construction | 2021 |
| Robot SM Limited | Construction | 2014 |
| Robovate Ltd | Professional & scientific | 2023 |
| Robsam Cleaning Limited | Administrative & support | 2023 |
| Robson Tyres (Wigston) Limited | Wholesale & retail | 2021 |
| ROBSY5 Ltd | Other services | 2013 |
| ROC Medical Limited | Health & social care | 2021 |
| Roca Consulting Services Limited | Professional & scientific | 2019 |
| Roca Designs Limited | Professional & scientific | 2018 |
| Roca Property Ltd | Real estate | 2024 |
| Rocco Asset Management Ltd | Real estate | 2021 |
| Roche Moutonnee Limited | Real estate | 2008 |
| Roche Moutonnee Properties Ltd | Real estate | 2018 |
| Rochester Williams Limited | Real estate | 2010 |
| Rock Apartments Management Company Limited | Households | 2005 |
| Rock Art Screen Print Ltd | Manufacturing | 2012 |
| Rock Hall Limited | Information & communication | 1981 |
| Rock Island Limited | Manufacturing | 1997 |
| Rock Kitchen Harris Limited | Professional & scientific | 1981 |
| Rock Kitchen Harris Trustees Limited | Administrative & support | 2024 |
| Rock Lennox Ltd | Health & social care | 2020 |
| Rock Revelations (London) Limited | Manufacturing | 2007 |
| Rock Revelations Limited | Extraterritorial | 2024 |
| Rock Transport Ltd | Transport & logistics | 2022 |
| Rockaby Limited | Administrative & support | 2022 |
| Rocket Fibre Solutions Ltd | Information & communication | 2026 |
| Rocket Holiday Camps Ltd | Education | 2019 |
| Rocket Youth Sports Ltd | Arts & recreation | 2018 |
| Rockfort Consulting Ltd | Professional & scientific | 2024 |
| Rockgreen Crucial Ltd | Transport & logistics | 2014 |
| Rockhtd Ltd | Construction | 2026 |
| Rockingham Road Investments Ltd | Real estate | 2021 |
| Rockinham Brook Ltd | Wholesale & retail | 2025 |
| Rockman Limited | Professional & scientific | 2005 |
| Rocksolid Investments & Properties Limited | Wholesale & retail | 2020 |
| Rocksolid Property Solutions Ltd | Real estate | 2020 |
| Rocksom Limited | Hospitality | 1983 |
| Rockstar Promotions Limited | Arts & recreation | 2011 |
| Rockstar Property Group Limited | Real estate | 2016 |
| Rocky Engineering Ltd | Professional & scientific | 2019 |
| Rocky Property Limited | Real estate | 2021 |
| Roco Digital Ltd | Information & communication | 2025 |
| Roco Living Ltd | Households | 2023 |
| Rococo Events Ltd | Administrative & support | 2021 |
| Roda UK. Ltd | Wholesale & retail | 2013 |
| Rodak Ltd | Wholesale & retail | 2018 |
| Rodata Transport Ltd | Transport & logistics | 2024 |
| Rodbari Management Limited | Financial services | 2022 |
| Rodley Illustrious Ltd | Transport & logistics | 2015 |
| Rodney Schools Limited | Construction | 1958 |
| Roemery Limited | Real estate | 2021 |
| Rofast Ltd | Transport & logistics | 2020 |
| Rogers & Cork Tree Care Ltd | Administrative & support | 2025 |
| Rohaaniya Holdings Ltd | Financial services | 2026 |
| Rohan & Roshni Limited | Health & social care | 2014 |
| Rohan Commodities International Limited | Wholesale & retail | 1994 |
| Rohan Tattoo Studio Ltd | Arts & recreation | 2021 |
| Rohanjoshimusic Ltd | Information & communication | 2025 |
| Rohans Limited | Wholesale & retail | 2007 |
| Rohil Properties Ltd | Real estate | 2025 |
| Rohit GI Services Limited | Health & social care | 2013 |
| Rohit Mohan Driving School Ltd | Other services | 2022 |
| Rohit Singh Consultancy Ltd | Health & social care | 2015 |
| Rohtaas Ltd | Wholesale & retail | 2025 |
| ROK Business Coaching Ltd | Education | 2025 |
| Rokada Ltd | Professional & scientific | 2020 |
| Rokadiya Group Ltd | Wholesale & retail | 2026 |
| Rokel Shipping and Travel Services Ltd. | Transport & logistics | 2001 |
| Rokk Property Ltd | Real estate | 2025 |
| Roko Trans Ltd | Transport & logistics | 2014 |
| Roland Home & Property Back UP Ltd | Real estate | 2026 |
| Role Model Academy Ltd | Education | 2021 |
| Role Model Health Ltd | Health & social care | 2023 |
| Rolfe Street Restaurant Ltd | Hospitality | 2019 |
| Rolled Lead Supplies Ltd | Manufacturing | 2022 |
| Rolleston Lodge Classics Limited | Wholesale & retail | 2019 |
| Rollin Rates Ltd | Information & communication | 2021 |
| Rolo Logistics Limited | Wholesale & retail | 2012 |
| Rolo Range Ltd | Wholesale & retail | 2023 |
| Roma Café and Restaurant Ltd | Hospitality | 2025 |
| Roman and George Properties Ltd | Hospitality | 2020 |
| Roman Leicester Ltd | Wholesale & retail | 2023 |
| Roman Productions Limited | Administrative & support | 1995 |
| Romanian Store Leics Ltd | Wholesale & retail | 2025 |
| Romantek Ltd | Information & communication | 2018 |
| Romantic Cuisine Limited | Hospitality | 2016 |
| Romavi Limited | Real estate | 2019 |
| Romb&C Construction Ltd | Construction | 2020 |
| Romdrive Limited | Transport & logistics | 1999 |
| Rome Technology Limited | Information & communication | 2007 |
| Roment Ltd | Professional & scientific | 2013 |
| Romeo Pizza Ltd | Hospitality | 2016 |
| Romeo's Business Transport Ltd | Transport & logistics | 2020 |