| Rise Smart Ltd | Wholesale & retail | 2022 |
| Rise Therapy Ltd | Health & social care | 2019 |
| Risehive Estates Ltd | Real estate | 2021 |
| Risehive Ltd | Construction | 2017 |
| Riseicon UK Ltd | Wholesale & retail | 2021 |
| Rising Holdings Ltd | Real estate | 2024 |
| Rising Investments Ltd | Real estate | 2015 |
| Rising Merch Limited | Administrative & support | 2018 |
| Rising Stars Childcare Ltd | Education | 2018 |
| Rising Stars Fostering Limited | Health & social care | 2019 |
| Rising Stars Tennis Academy Ltd | Arts & recreation | 2023 |
| Rising Sun Development Ltd | Construction | 2023 |
| Rising Sun Shine Limited | Wholesale & retail | 2015 |
| Risk Assured Compliance Ltd | Financial services | 2025 |
| Risk Assured Management Ltd | Financial services | 2021 |
| Risonic Medics Limited | Health & social care | 2022 |
| Risrav Properties Limited | Real estate | 2015 |
| Rite Services Limited | Administrative & support | 2022 |
| Ritesh Construction Ltd | Construction | 2019 |
| Ritson International Ltd | Manufacturing | 2019 |
| Rituvel Limited | Wholesale & retail | 2026 |
| Ritzybeds Ltd | Wholesale & retail | 2024 |
| Riva Corporation Ltd | Construction | 2025 |
| Riva Creative Limited | Information & communication | 2013 |
| River Fleet London Ltd | Other services | 2019 |
| River Park Homes Limited | Construction | 2022 |
| River Vale (U.K) Ltd | Construction | 2024 |
| Riverdale Solicitors Limited | Professional & scientific | 2022 |
| Riverend Limited | Wholesale & retail | 2021 |
| Riverfine Solutions Ltd | Information & communication | 2006 |
| Rivergold Auctionhouse Ltd | Wholesale & retail | 2010 |
| Rivergold Limited | Wholesale & retail | 2009 |
| Riverhall Estates Ltd | Real estate | 2020 |
| Riverq Ltd | Wholesale & retail | 2020 |
| Rivers Land Ltd | Wholesale & retail | 2026 |
| Riverside London Services Ltd | Administrative & support | 2023 |
| Riverside Luxe Ltd | Real estate | 2025 |
| Riverview Events Management Ltd | Hospitality | 2024 |
| Rivesto Limited | Professional & scientific | 2021 |
| Riviera Private Limited | Administrative & support | 2022 |
| RIX Building & Maintenance Limited | Construction | 2021 |
| Rixil Properties Limited | Construction | 2008 |
| Riya London Ltd | Manufacturing | 2023 |
| Riya Services Ltd | Extraterritorial | 2023 |
| Riyad Traders UK Limited | Wholesale & retail | 2015 |
| RIZ Foods Limited | Hospitality | 2017 |
| RIZ Global Services Ltd | Professional & scientific | 2013 |
| RIZ H Holdings Limited | Real estate | 2025 |
| Riza Karatas Limited | Wholesale & retail | 2025 |
| Rizah Enterprises Ltd | Real estate | 2021 |
| Rizah Properties Ltd | Real estate | 2025 |
| Rizen Tech Ltd | Information & communication | 2025 |
| Rizq Management & Investments Ltd | Real estate | 2025 |
| Rizvi Traders Limited | Manufacturing | 2025 |
| Rizwan Riaz Ltd | Wholesale & retail | 2023 |
| Rizwan's Locums and App Development Ltd | Health & social care | 2023 |
| Rizwana Clinical Services Ltd | Health & social care | 2022 |
| Rizz & Repairs Limited | Transport & logistics | 2026 |
| Rizzy Cutz Ilford Ltd | Other services | 2026 |
| RJ Financial Consultants Limited | Financial services | 2013 |
| RJ Financial Solutions Limited | Real estate | 2017 |
| RJ Food & Wine Limited | Wholesale & retail | 2012 |
| RJ London Properties Ltd | Real estate | 2022 |
| RJ Pro Services Ltd | Information & communication | 2025 |
| RJ Property and Developments Ltd | Construction | 2022 |
| Rj&P Ltd | Wholesale & retail | 2025 |
| Rj's Fried Chicken Ltd | Hospitality | 2020 |
| RJD Luxury Homes Limited | Households | 2023 |
| RJD Luxury Properties Limited | Real estate | 2024 |
| RJG Haulage Limited | Transport & logistics | 2010 |
| RJH Seven Properties Ltd | Real estate | 2023 |
| RJS Travels Limited | Transport & logistics | 2025 |
| Rjsatz Ltd | Wholesale & retail | 2025 |
| Rjsi Limited | Real estate | 2024 |
| Rjtlondon Ltd | Construction | 2025 |
| RK Builders Limited | Manufacturing | 2018 |
| RK Enterprise London Ltd | Professional & scientific | 2022 |
| RK Ideals Ltd | Wholesale & retail | 2025 |
| RK Investment Property Limited | Real estate | 2024 |
| RK Products Ltd | Wholesale & retail | 2013 |
| Rkac Property Lettings Limited | Real estate | 2022 |
| RKD Homes Ltd | Real estate | 2022 |
| RKG Hub Ltd | Wholesale & retail | 2025 |
| RKJ Solicitors Ltd | Professional & scientific | 2025 |
| RKK Store Limited | Wholesale & retail | 2025 |
| RKM Accountancy Ltd | Professional & scientific | 2013 |
| RKN Enterprises Limited | Wholesale & retail | 2021 |
| Rkparas Films Ltd | Information & communication | 2025 |
| RKR Retail UK Limited | Manufacturing | 2024 |
| RKS Investment (London) Limited | Financial services | 2019 |
| RKS Solutions Limited | Construction | 2009 |
| Rksb Electrical Limited | Construction | 2024 |
| RKV Property Ltd | Real estate | 2020 |
| RLE Maintenance Ltd | Real estate | 2025 |
| Rlgt Ltd | Construction | 2025 |
| RLM Cleaning Ltd | Administrative & support | 2025 |
| Rlmj Estates LLP | | 2025 |
| Rlmj Surgical Ltd | Health & social care | 2023 |
| RLT Building Solutions Ltd | Construction | 2016 |
| RM & LM Property Limited | Real estate | 2025 |