| Rahmans Kitchen Ltd | Hospitality | 2023 |
| Rainy Day Holdings Ltd | Financial services | 2022 |
| Rainy Day Property Ltd | Real estate | 2024 |
| Rallon LLP | | 2026 |
| Rana Builds Ltd | Construction | 2026 |
| Rangan Ltd | Real estate | 2017 |
| Rani Real Estates Limited | Real estate | 2024 |
| Ranjan Group Ltd | Real estate | 2025 |
| Ranya Cotton Candy Ltd | Wholesale & retail | 2021 |
| Ranya Dessert Ltd | Manufacturing | 2025 |
| Raone Infotech Limited | Information & communication | 2018 |
| Raphanac Limited | Professional & scientific | 2014 |
| Ravensbourne MGT Ltd | Real estate | 2013 |
| Razad Limited | Wholesale & retail | 2026 |
| RCP Construction Limited | Construction | 2012 |
| Reach 247 Limited | Professional & scientific | 2007 |
| Real Estate Properties Ltd | Real estate | 2019 |
| Realine Solutions Limited | Construction | 2022 |
| Recoverbods Ltd | Wholesale & retail | 2025 |
| Recycledirectgroup Ltd | Water & waste | 2025 |
| Red Barber Shop B&N Ltd | Other services | 2021 |
| Red Barber Shop Limited | Other services | 2014 |
| Red House Occupational Therapy Ltd | Health & social care | 2023 |
| Red Plum Property Limited | Real estate | 2018 |
| Redbridge Property Investments Ltd | Real estate | 2018 |
| Redeemed Christian Church of GOD (the Anchor for ALL Souls) | Other services | 2008 |
| Redenex Ltd. | Professional & scientific | 2012 |
| Redmayes Limited | Real estate | 2018 |
| Redroosteruk Ltd | Wholesale & retail | 2012 |
| Refurb My Home Ltd | Real estate | 2013 |
| Regali Commercial Services Ltd | Professional & scientific | 2016 |
| Regan Property Limited | Real estate | 2021 |
| Regenerativeagro Ltd | Professional & scientific | 2023 |
| Regis Management Services Limited | Administrative & support | 2013 |
| Registify Ltd | Information & communication | 2025 |
| Reidhill Construction Limited | Construction | 2019 |
| Reign Marketing Consulting Ltd | Professional & scientific | 2025 |
| Reign Tack Limited | Wholesale & retail | 2026 |
| Reis Properties Limited | Real estate | 2024 |
| Reiter Facilities Management Limited | Administrative & support | 2018 |
| Relevant City Ltd | Other services | 2006 |
| Reliable Airport Transfers and Travel Ltd | Transport & logistics | 2024 |
| Reliaweb Ltd | Information & communication | 2024 |
| Rendals Ltd | Real estate | 2017 |
| Renew Renovations Limited | Construction | 2020 |
| Renisha Ltd | Real estate | 2022 |
| Renovation Nation UK Ltd | Construction | 2025 |
| Resilience Children Services Ltd | Health & social care | 2025 |
| Resolute Search Ltd | Administrative & support | 2023 |
| Restique Hub Ltd | Hospitality | 2026 |
| Retex Move & Logistics Limited | Transport & logistics | 2025 |
| Retrolize Ltd | Wholesale & retail | 2023 |
| Revamp International Limited | Construction | 2025 |
| Reverie Noir Ltd | Information & communication | 2026 |
| Revive Electrical Limited | Construction | 2021 |
| Revive Zone Ltd | Manufacturing | 2025 |
| Rewarding Ltd | Wholesale & retail | 2023 |
| Reynolds Electrical Limited | Construction | 2024 |
| Rezi-Air Ltd | Construction | 2020 |
| RGH Estates Ltd | Real estate | 2024 |
| RHL Accountants Limited | Professional & scientific | 2013 |
| RIA Consultancy Services Limited | Information & communication | 2015 |
| Ricaro Properties Ltd | Real estate | 2020 |
| Ridgeon & Turner Ltd | Wholesale & retail | 2009 |
| Riffad Limited | Manufacturing | 2012 |
| Right Key Developments Ltd | Real estate | 2024 |
| Rightstep Care Ltd | Health & social care | 2025 |
| Rihansi Limited | Health & social care | 2025 |
| Riovara Limited | Information & communication | 2001 |
| Rishee Consulting Limited | Information & communication | 2016 |
| Ritaadex Ltd | Health & social care | 2020 |
| Riverdale Homes Management Ltd | Households | 2025 |
| Riverside Cafe Totnes Ltd | Hospitality | 2025 |
| Riverside Electric Ltd | Construction | 2024 |
| Riyaaservicesuk Limited | Financial services | 2026 |
| RJC Lettings Limited | Real estate | 2024 |
| RJM Coaching Limited | Education | 2021 |
| RK Dentistry Limited | Health & social care | 2022 |
| RK Radiology Limited | Professional & scientific | 2021 |
| RKC Transport Ltd | Transport & logistics | 2019 |
| RKK Global Ltd | Other services | 2020 |
| RMG Properties Ltd | Professional & scientific | 2021 |
| RMT Compliance Ltd | Professional & scientific | 2022 |
| Rnuk Ltd | Construction | 2019 |
| Roadmax Ltd | Transport & logistics | 2025 |
| Robusta Beans Ltd | Hospitality | 2026 |
| Rock-Iorganisation Community Project | Other services | 2020 |
| Rockingham Promotions Limited | Other services | 2003 |
| Roddy's Electrical Services Limited | Construction | 2016 |
| Rohankapadia Ltd | Wholesale & retail | 2023 |
| Romney Roofing Limited | Construction | 2022 |
| Rongland Limited | Manufacturing | 2016 |
| Ronkusronkus Care Services Limited | Health & social care | 2023 |
| Ronlov Ltd | Professional & scientific | 2011 |
| Roop Media Ltd | Professional & scientific | 2026 |
| Ropes Studios Ltd | Professional & scientific | 2024 |
| Rophe Services Limited | Health & social care | 2020 |
| Rose Beauty Hub Limited | Other services | 2022 |
| Rose Montague Ltd | Manufacturing | 2026 |
| Rose NM Limited | Other services | 2018 |