| Revolve Cars Limited | Wholesale & retail | 2000 |
| Revolve Tyres Ltd | Wholesale & retail | 2025 |
| REVOLVE360 Limited | Professional & scientific | 2016 |
| Revvdoctor Ltd | Professional & scientific | 2026 |
| Revxpress Ltd | Wholesale & retail | 2026 |
| Rewear Club Ltd | Wholesale & retail | 2025 |
| Rewind Northwest Ltd | Wholesale & retail | 2022 |
| Rewirerecovery Ltd | Information & communication | 2026 |
| Reworx Property Services Limited | Construction | 2024 |
| REX & Ruby Properties Ltd | Real estate | 2024 |
| REX Auto Ltd | Wholesale & retail | 2025 |
| REX ST Pubs Ltd | Hospitality | 2024 |
| Rexon Real Estate Limited | Real estate | 2025 |
| Rextel Limited | Information & communication | 2024 |
| REY of Sunshine Properties Ltd | Real estate | 2024 |
| Reyaansh Solution's Ltd | Information & communication | 2024 |
| Reyan Ltd | Professional & scientific | 2023 |
| Reynolds Enterprise Holdings Limited | Financial services | 2021 |
| Reynolds Homes Ltd | Real estate | 2017 |
| Reyon Ltd | Wholesale & retail | 2023 |
| Reywan Ltd | Wholesale & retail | 2022 |
| Rezprop Limited | Real estate | 2026 |
| RF Building & Maintenance Limited | Construction | 2015 |
| RF Homecare Ltd | Health & social care | 2026 |
| RF Plumbing & Heating Ltd | Construction | 2022 |
| Rfak Holdings Ltd | Financial services | 2018 |
| RFB Blocking Ltd | Other services | 2018 |
| Rfdc Ltd | Health & social care | 2023 |
| RFK Consult Ltd | Administrative & support | 2025 |
| RFM Studios CIC | Arts & recreation | 2014 |
| RFP IT Solutions Ltd | Information & communication | 2013 |
| RFX Capital Limited | Financial services | 2010 |
| RFX Procurement Limited | Manufacturing | 2023 |
| RFX Properties Ltd | Real estate | 2001 |
| RG + P (Holdings) Limited | Financial services | 2017 |
| RG + P Living Limited | Professional & scientific | 2021 |
| RG Contract Plumbers Ltd | Construction | 2018 |
| RG Distribution Ltd | Administrative & support | 2018 |
| RG Divine Ltd | Construction | 2019 |
| RG Motors (Leicester) Ltd | Wholesale & retail | 2014 |
| Rg&P Consult Limited | Professional & scientific | 2023 |
| Rg+P Limited | Professional & scientific | 1999 |
| RG7 Group Limited | Professional & scientific | 2021 |
| RGA Trading Limited | Wholesale & retail | 2025 |
| RGP (Services) LLP | | 2015 |
| RGP Consultancy Limited | Professional & scientific | 2025 |
| RGS VICTOR1A Limited | Construction | 2021 |
| Rgsb Limited | Professional & scientific | 2021 |
| RGW Independent Research Limited | Extraterritorial | 2024 |
| RH Autoz Ltd | Wholesale & retail | 2025 |
| RH Developements ( Leicester ) Limited | Construction | 2014 |
| RH Guraya Builders Ltd | Construction | 2024 |
| RH Investments (Leicester) Limited | Real estate | 2019 |
| RH IT Consulting Ltd | Information & communication | 2023 |
| RH Psychology Limited | Health & social care | 2021 |
| RH Sparkle Ltd | Administrative & support | 2026 |
| RH Studioz Ltd | Real estate | 2025 |
| RH Supply Ltd | Wholesale & retail | 2025 |
| RH Transport Ltd | Transport & logistics | 2022 |
| RH Ventures Leicester Limited | Real estate | 2026 |
| RHA Haulage Limited | Transport & logistics | 2019 |
| Rhardman & Shardman Ltd | Real estate | 2019 |
| RHB Property Ltd | Real estate | 2024 |
| RHC Clinic Limited | Health & social care | 2022 |
| Rhencullen Limited | Professional & scientific | 2018 |
| RHH Medical Ltd | Information & communication | 2012 |
| Rhhk Investments Limited | Real estate | 2024 |
| Rhian Homes Ltd | Real estate | 2017 |
| Rhianna Ltd | Wholesale & retail | 2019 |
| Rhimin Builders Ltd | Construction | 2021 |
| Rhinnos Builders Limited | Construction | 2019 |
| Rhino Cricket Ltd | Arts & recreation | 2017 |
| Rhino Freight Ltd | Transport & logistics | 2021 |
| Rhino Protect Limited | Financial services | 2006 |
| Rhino Resource Services Ltd | Administrative & support | 2014 |
| RHJ Services Limited | Transport & logistics | 2015 |
| RHK Group Ltd | Financial services | 2026 |
| RHL Property Ltd | Real estate | 2024 |
| RHO Clothing Limited | Wholesale & retail | 2025 |
| Rhodes Electrical Services Limited | Construction | 2008 |
| Rhodia Investments Limited | Real estate | 2016 |
| Rhomeroo Limited | Information & communication | 2006 |
| RHP Investments Limited | Real estate | 2017 |
| RHP Management Limited | Other services | 2016 |
| RHP Solutions Ltd | Information & communication | 2005 |
| RHS Medical Services Limited | Health & social care | 2017 |
| Rhsoniconsultancy Limited | Information & communication | 2025 |
| Rhsp Solutions Ltd | Professional & scientific | 2024 |
| Rhui Carter Ltd | Wholesale & retail | 2024 |
| Rhuvi Limited | Wholesale & retail | 2023 |
| Rhymelux Properties Ltd | Real estate | 2024 |
| Rhythm Estates Ltd | Real estate | 2016 |
| RI Wealth Management Ltd | Financial services | 2013 |
| RIA 1 Medical Services Ltd | Other services | 2019 |
| RIA Electronics Ltd | Transport & logistics | 2025 |
| RIA MFR Limited | Real estate | 2021 |
| RIA Pancha Limited | Real estate | 2024 |
| RIA Properties Ltd | Real estate | 2019 |
| RIA V Limited | Construction | 2019 |
| Riaa Investment Ltd | Real estate | 2022 |