| Ramps Events Limited | Arts & recreation | 2012 |
| Randalls Coffee House Ltd | Wholesale & retail | 2009 |
| Ranick Limited | Transport & logistics | 2025 |
| Ranjit Investments Limited | Real estate | 2015 |
| Ranjit Roofing Company Limited | Construction | 2008 |
| Ransons Holdings Ltd | Financial services | 2025 |
| Ransons Limited | Wholesale & retail | 2002 |
| Ranya Sarees Ltd | Wholesale & retail | 2018 |
| Rara Consulting Limited | Professional & scientific | 2020 |
| Ratnam & Family Limited | Health & social care | 2023 |
| RAV & GUR Investments Limited | Real estate | 2024 |
| RAV Digital Ltd | Professional & scientific | 2018 |
| Ravaya Property Investments Limited | Real estate | 2021 |
| RAVEN4 Tech Solutions Limited | Information & communication | 2018 |
| RAY Assets and Holdings Ltd | Real estate | 2019 |
| RAY Burmiston Photography Limited | Professional & scientific | 2003 |
| Rayners Court Limited | Professional & scientific | 1996 |
| Rayners Lane Montessori Limited | Education | 2017 |
| Rayuna Ltd | Real estate | 2019 |
| Razor Installations Ltd | Construction | 2023 |
| RB Properties & Management Limited | Real estate | 2022 |
| RBM Legal Services Limited | Professional & scientific | 2023 |
| Rcloud Limited | Information & communication | 2016 |
| Rctd Ltd | Construction | 2019 |
| Rdmh Investments Ltd | Real estate | 2022 |
| RE1 Lochmalony Limited | Energy | 2023 |
| Real Bargains International Limited | Wholesale & retail | 2019 |
| Real Padel Ltd | Education | 2025 |
| Reannara Property Limited | Real estate | 2021 |
| Reasoningmachines Ltd | Information & communication | 2015 |
| Rebeca Calado Ltd | Health & social care | 2025 |
| Rebel 22 Digital Limited | Construction | 2023 |
| Red Centre Consulting Limited | Professional & scientific | 2002 |
| Red Crane Investments Ltd | Real estate | 2022 |
| Red Door 54 Limited | Other services | 2014 |
| Red DOT Jewels Ltd | Wholesale & retail | 2011 |
| Red Forrest Boutique Ltd | Manufacturing | 2020 |
| Red House Nursing Home (Stamford) Limited | Health & social care | 1998 |
| Red Mouse Consultants Limited | Administrative & support | 2022 |
| Red Tyger Limited | Information & communication | 2010 |
| Redbox Telecom Limited | Information & communication | 2005 |
| Redflower Investments Limited | Financial services | 2011 |
| Redge Services Ltd | Professional & scientific | 2014 |
| Redrock Business Consulting Limited | Professional & scientific | 2010 |
| Redsky Properties Limited | Real estate | 2021 |
| Redssun Ltd | Extraterritorial | 2007 |
| Redwell Investments Limited | Professional & scientific | 1997 |
| Reeds Consultancy Limited | Administrative & support | 2015 |
| Reenarnia Nurseries Limited | Education | 2024 |
| Reenarnia Property Investments Limited | Real estate | 2025 |
| Reeneal Ltd | Professional & scientific | 2021 |
| Reesha Ecom Ltd | Wholesale & retail | 2025 |
| Reevaz Limited | Other services | 2014 |
| Refined Kitchens Limited | Construction | 2005 |
| Reflections Consultancy NTA Ltd | Professional & scientific | 2024 |
| Regal Blooms Event Management Limited | Hospitality | 2025 |
| Regal Skylark Consulting Ltd | Financial services | 2017 |
| Regen Horizon Ltd | Manufacturing | 2025 |
| Regenerate Wellbeing Solutions Limited | Other services | 2025 |
| Regmatrix Consultancy PVT Limited | Administrative & support | 2011 |
| Regnum Virtutis Ltd | Other services | 2025 |
| Rehab Clinics Group Ltd | Other services | 2020 |
| Reliable Resources Limited | Professional & scientific | 2012 |
| Reliable Team Ltd | Information & communication | 2017 |
| Reliance Finance Corporation Limited | Real estate | 2014 |
| Reliance Property Trading Company Ltd | Real estate | 2023 |
| Rema Medical Ltd | Wholesale & retail | 2024 |
| Rembrandt Court Residents' Association Limited | Households | 1974 |
| Remi.C.T Ltd | Professional & scientific | 2016 |
| Remount (UK) Limited | Real estate | 2017 |
| Remvir Private Ltd | Hospitality | 2025 |
| Rendezvous Experience Limited | Professional & scientific | 2025 |
| Renjan Properties Limited | Real estate | 1959 |
| Renova Contractor Limited | Construction | 2025 |
| Renovation by TK Ltd | Construction | 2026 |
| Rent Adriatic Ltd | Administrative & support | 2013 |
| Rent AL36 Limited | Administrative & support | 2025 |
| Rentalytix Limited | Information & communication | 2026 |
| Renztech Ltd | Information & communication | 2011 |
| Repair AP Ltd | Construction | 2024 |
| Reperl Limited | Health & social care | 2019 |
| Replywise Ltd | Information & communication | 2025 |
| Represent Property Group Ltd | Real estate | 2015 |
| Resaai Limited | Manufacturing | 2022 |
| Rescon Europe Ltd. | Information & communication | 2011 |
| Reshnet Accountants Limited | Professional & scientific | 2019 |
| Residenceessential Limited | Real estate | 2021 |
| Residy Limited | Real estate | 2020 |
| Resto Techofy Ltd | Hospitality | 2024 |
| Results NOW Training Limited | Other services | 2016 |
| Resume Technologies Limited | Administrative & support | 2013 |
| Resurwreck Ltd | Professional & scientific | 2022 |
| Retto Interiors Limited | Construction | 2024 |
| Reva Retailing Ltd | Hospitality | 2022 |
| Revaela Ltd | Information & communication | 2019 |
| Reversal Productions Limited | Information & communication | 2003 |
| Revival Asset Management Ltd | Real estate | 2025 |
| Revive Insights Limited | Professional & scientific | 2018 |
| Revlodge Developments Limited | Real estate | 2003 |
| Reward Intelligence Limited | Professional & scientific | 2019 |