| Righttrak TM Ltd | Administrative & support | 2016 |
| Rigid.Ink Ltd | Education | 2015 |
| Rigney Construction Ltd | Manufacturing | 2020 |
| RIJ Transport Ltd | Transport & logistics | 2020 |
| Rikshaw Urban Indian Ltd | Hospitality | 2018 |
| RIL Energy Limited | Financial services | 2020 |
| Rileys Pet Store Ltd | Wholesale & retail | 2018 |
| Rimani Healthcare Limited | Health & social care | 2016 |
| Rimano UK Limited | Professional & scientific | 2018 |
| Rimot.Io UK Ltd | Information & communication | 2025 |
| Rimzi Cosmetics Ltd | Wholesale & retail | 2010 |
| Ringfield Farm Limited | Agriculture & fishing | 1989 |
| Ringsfield Lodges Limited | Hospitality | 2014 |
| Ringwood Close Management Company Limited | Households | 2016 |
| Ringwood Group Ltd | Construction | 2026 |
| Rinni Ltd | Professional & scientific | 2025 |
| Rippleacts CIC | Other services | 2022 |
| RIS Construction Ltd | Construction | 2018 |
| RIS72 Holdings Ltd | Financial services | 2026 |
| Rise & Shine Norfolk C.I.C. | Wholesale & retail | 2025 |
| Rise & Shine Tanning Studio Ltd | Other services | 2024 |
| Rise Athlete Ltd | Hospitality | 2024 |
| Rise Coaching Ltd | Professional & scientific | 2024 |
| Rise Consultancy Limited | Professional & scientific | 2023 |
| Rise Norfolk Limited | Construction | 2020 |
| Rise Windows and Doors Ltd | Construction | 2023 |
| Risepoint UK Holdings Ltd. | Financial services | 2023 |
| Rising Pathways Ltd | Real estate | 2022 |
| Rising Sun Hill Residents Management Company Ltd | Households | 2020 |
| Risings Property Ltd | Financial services | 2022 |
| Risk & Policy Analysts Limited | Professional & scientific | 1990 |
| Risk Assessment and Management Associates Limited | Professional & scientific | 1994 |
| Risk Consultants Limited | Professional & scientific | 2025 |
| Risk-Driven Management Limited | Information & communication | 2007 |
| Riskalliance Direct Limited | Financial services | 2011 |
| Risky Ventures Limited | Real estate | 2023 |
| Rita Okeke Limited | Professional & scientific | 2022 |
| Rita Pubco Limited | Hospitality | 2024 |
| Rita White Aesthetics Ltd | Other services | 2024 |
| Rivaaj Birmingham Limited | Wholesale & retail | 2015 |
| Rivawood Limited | Real estate | 2004 |
| Rivazza Performance Systems Ltd | Manufacturing | 2026 |
| River & Sea Marine Services Ltd | Manufacturing | 2025 |
| River Energy Limited | Energy | 2017 |
| River Green Consulting Limited | Professional & scientific | 2018 |
| River Green Trading Limited | Hospitality | 2011 |
| River Moorings (Wroxham) Management Limited | Professional & scientific | 1996 |
| Rivercross Warwick Ltd | Hospitality | 2019 |
| Riverdale Ecology Limited | Professional & scientific | 2016 |
| Riverdog Productions Limited | Information & communication | 2013 |
| Rivergold Associates Ltd | Financial services | 2019 |
| Riverside (Wroxham) Ltd | Hospitality | 2021 |
| Riverside Business Centre Norwich Ltd | Administrative & support | 2022 |
| Riverside Car Wash (Norwich) Ltd | Administrative & support | 2019 |
| Riverside Computer Services Limited | Information & communication | 1994 |
| Riverside Energy Centre Limited | Energy | 2024 |
| Riverside Escapes Limited | Real estate | 2026 |
| Riverside Marina Limited | Other services | 1985 |
| Riverside Timber Frame Limited | Manufacturing | 2007 |
| Riverside Walk Residents Association Limited | Households | 2001 |
| Riverspark Limited | Real estate | 2014 |
| Riverton Developments Limited | Construction | 2016 |
| Riverway Group Ltd. | Construction | 2015 |
| Riverwood Chiropractic Ltd. | Health & social care | 2009 |
| Rivett Enterprises Ltd | Wholesale & retail | 2024 |
| Rivett Property Lettings Limited | Real estate | 2017 |
| Riviera Services Limited | Administrative & support | 1988 |
| Rivington 101 Limited | Real estate | 2024 |
| Rivington Bess Limited | Energy | 2022 |
| Rivington Data Solutions Limited | Information & communication | 2024 |
| Rivington Energy (Management) Limited | Construction | 2019 |
| Rivington Energy Limited | Energy | 2022 |
| Rivington Grid Limited | Energy | 2025 |
| Rivington Investments Limited | Financial services | 2019 |
| Rivington Solar Limited | Construction | 2019 |
| Rivington Storage Limited | Construction | 2019 |
| RIX Lodge Limited | Hospitality | 2006 |
| Rizer Creative Ltd | Information & communication | 2018 |
| Rizzo Studio Limited | Professional & scientific | 2020 |
| RJ Beauty Rooms Ltd | Wholesale & retail | 2025 |
| RJ Bruce Limited | Construction | 2017 |
| RJ Crane & Co Limited | Real estate | 2005 |
| RJ Moore Construction Limited | Construction | 2004 |
| RJ Oakley Ltd | Construction | 2019 |
| RJ Properties (Aylsham) Ltd | Financial services | 2024 |
| RJ PRU Management Services Ltd | Extraterritorial | 2012 |
| RJA Haulage Ltd | Transport & logistics | 2021 |
| RJC Hair Ltd | Other services | 2026 |
| RJD Roofing Ltd | Construction | 2024 |
| RJE Consulting Ltd | Construction | 2012 |
| RJF Events Limited | Other services | 2021 |
| RJF Joinery Limited | Construction | 2015 |
| RJL IFA Limited | Financial services | 2004 |
| RJM Commercials Limited | Transport & logistics | 2010 |
| RJM Services Europe Limited | Administrative & support | 2022 |
| RJN PUB Co Ltd | Hospitality | 2024 |
| RJP Family Holdings Ltd | Financial services | 2026 |
| RJS UK Holdings Ltd | Financial services | 2025 |
| RJS UK Investments Ltd | Financial services | 2025 |
| RJS UK Properties Ltd | Financial services | 2025 |