| R&R Fruit and VEG Limited | Wholesale & retail | 2015 |
| R&R Property Assets Ltd | Real estate | 2022 |
| R&R Taxis Limited | Transport & logistics | 2019 |
| R&S Wilkinson Properties LLP | | 2023 |
| R&Y Designers Limited | Manufacturing | 2020 |
| R&Z United Limited | Health & social care | 2026 |
| R. & J. Hill Engineering Limited | Manufacturing | 1973 |
| R. Billson & Sons Limited | Wholesale & retail | 1966 |
| R. C. Harrison & Sons Limited | Extraterritorial | 1989 |
| R. Chapman (Automobile Engineers) Limited | Wholesale & retail | 1974 |
| R. Hill Transport Services Ltd | Construction | 2004 |
| R. J. H. Civil Engineering Limited | Construction | 1991 |
| R. Jewell Limited | Other services | 2018 |
| R. K. Developments Leicester Limited | Real estate | 2021 |
| R. K. Electrical Services (Leic) Ltd | Construction | 2017 |
| R. M. Trading (Leicester) Limited | Wholesale & retail | 2017 |
| R.A Driving Academy Ltd | Education | 2024 |
| R.A.A.M Medical Limited | Health & social care | 2015 |
| R.A.C Roofing & Cladding Specialist Limited | Construction | 2014 |
| R.A.N.S Consulting Ltd | Information & communication | 2018 |
| R.Anastasia Ltd | Transport & logistics | 2022 |
| R.D.I. Enterprises Limited | Real estate | 2012 |
| R.E. Bowers & Freeman Limited | Manufacturing | 1960 |
| R.E.T.Kiki Ltd | Professional & scientific | 2014 |
| R.F.E.S Limited | Construction | 2007 |
| R.F.Y. Limited | Professional & scientific | 1998 |
| R.Frances Ltd | Administrative & support | 2026 |
| R.I.N.D.T. Ltd | Professional & scientific | 2003 |
| R.J. Berrington Limited | Construction | 2014 |
| R.J. Binnie Limited | Manufacturing | 2002 |
| R.J. Wilkinson Holdings Limited | Financial services | 2022 |
| R.J. Wilkinson Limited | Real estate | 1988 |
| R.M.J. Limited | Financial services | 1995 |
| R.N. Harvey Limited | Wholesale & retail | 1983 |
| R.S.B Scientific Services Limited | Professional & scientific | 2014 |
| R.S.Brookman,Limited | Manufacturing | 1929 |
| R.S.N Cargo Tran's Ltd | Transport & logistics | 2017 |
| R.S.T. Capital Limited | Financial services | 2016 |
| R.S.T. International Limited | Wholesale & retail | 2004 |
| R/P Mshayavanhu Ltd | Health & social care | 2013 |
| R07YAL Construction Ltd | Construction | 2026 |
| R1 Scaffolding Leicester Ltd | Construction | 2022 |
| R2 Insulations Limited | Construction | 2019 |
| R24COS Ltd | Professional & scientific | 2022 |
| R2D2 Conveyors Limited | Financial services | 2022 |
| R3 Aesthetics Limited | Health & social care | 2016 |
| R3 Groundwork Ltd | Administrative & support | 2019 |
| R3 Nails Limited | Other services | 2023 |
| R3 Roofing & Exteriors Ltd | Construction | 2025 |
| R3K Ltd | Real estate | 2023 |
| R3K Properties Limited | Real estate | 2022 |
| R4 MNE Ltd | Administrative & support | 2023 |
| R7SHARMA Property Limited | Real estate | 2022 |
| R84L Renovateforless Ltd | Construction | 2025 |
| R88 Transport Ltd | Transport & logistics | 2026 |
| R@J Haulage Ltd | Transport & logistics | 2021 |
| RA Acquisitions Ltd | Real estate | 2019 |
| RA Asset Management Limited | Real estate | 2014 |
| RA Beanstalk Limited | Professional & scientific | 2022 |
| RA Global Trader Ltd | Wholesale & retail | 2023 |
| RA Holdings Leicester Limited | Financial services | 2025 |
| RA Oprea Ltd | Wholesale & retail | 2022 |
| RA Prime Properties Ltd | Real estate | 2026 |
| RA Production Ltd | Wholesale & retail | 2025 |
| RA Skincare Limited | Wholesale & retail | 2017 |
| RA Soar Estimating Ltd | Professional & scientific | 2024 |
| RA Team Challenges Ltd | Professional & scientific | 2026 |
| Ra.Gebo Ltd | Manufacturing | 2023 |
| RA2 Holdings Ltd | Real estate | 2017 |
| RAA Marketing Solutions Ltd | Manufacturing | 2024 |
| RAA Property Management Ltd | Real estate | 2020 |
| Raag Qawwali Group Limited | Arts & recreation | 2022 |
| Raageh Care Limited | Health & social care | 2018 |
| Raaj Brothers Transport Ltd | Transport & logistics | 2023 |
| Raak Ltd | Health & social care | 2018 |
| Raan Holdings Ltd | Other services | 2021 |
| Raavi Foods Limited | Wholesale & retail | 2012 |
| Raavi Holdings Limited | Financial services | 2022 |
| Raayan Ltd | Information & communication | 2022 |
| Raazy Homes Ltd | Construction | 2024 |
| RAB Asset Holdings Ltd | Financial services | 2026 |
| Rabaab Transport Ltd | Transport & logistics | 2025 |
| Rabani Ltd | Manufacturing | 2020 |
| Rabelts Ltd | Wholesale & retail | 2025 |
| Rabia Investments Limited | Real estate | 2005 |
| Rabsk Holdings Ltd | Financial services | 2025 |
| Racasam Ltd | Real estate | 2016 |
| Race Motors (Leics) Ltd | Wholesale & retail | 2017 |
| Race@Home Ltd | Manufacturing | 2020 |
| Racecourse Ltd | Administrative & support | 2019 |
| Racesafe Limited | Manufacturing | 2013 |
| Rachel Clarke Medical Services Limited | Health & social care | 2022 |
| Rachel Hurst Ltd | Real estate | 2020 |
| Rachel J Treanor Ltd | Health & social care | 2019 |
| Rachel James Consultancy Group Ltd | Financial services | 2020 |
| Rachel James Property Group Ltd | Real estate | 2020 |
| Rachid Ltd | Health & social care | 2016 |
| Racial Justice Education Ltd | Professional & scientific | 2023 |
| Racking LV Ltd | Construction | 2016 |
| Racse Ltd | Information & communication | 2026 |