| RI Restaurant Management Limited | Professional & scientific | 2017 |
| Ribu Properties Ltd | Real estate | 2026 |
| Richa & Sanvi's Innovation Ltd | Wholesale & retail | 2021 |
| Richard Andrews Architects Ltd | Professional & scientific | 2012 |
| Richard Carter Readymix (IOW) Limited | Manufacturing | 2001 |
| Richard Dooley Homes Ltd | Extraterritorial | 2011 |
| Richard Mace Solutions Limited | Information & communication | 2008 |
| Richard Management Limited | Administrative & support | 2022 |
| Richard Westbury Transport Limited | Transport & logistics | 2010 |
| Richardson Traction Ltd | Transport & logistics | 2003 |
| Richarl Limited | Real estate | 2016 |
| Richie Creative Limited | Real estate | 2022 |
| Richmar Properties Limited | Real estate | 2022 |
| Richmonds Bakery Ltd | Other services | 2017 |
| Richty Properties (Rogerstone) Ltd | Real estate | 2018 |
| Rickett & Reed Limited | Wholesale & retail | 2011 |
| Ricom Solutions Ltd | Construction | 2025 |
| Rideouts Haulage Ltd | Transport & logistics | 2003 |
| Ridett Enterprises Ltd | Construction | 2015 |
| Ridgeford Theta Limited | Financial services | 2026 |
| Ridgeway Avenue Estates Limited | Real estate | 2015 |
| Ridgeway Barbers Ltd | Other services | 2019 |
| Ridgeway Collective Ltd | Professional & scientific | 2024 |
| Ridgeway Hill Management Company Limited | Households | 2020 |
| Ridgeway Marketing and Consultancy Ltd | Professional & scientific | 2020 |
| Ridgeway Roofing Solutions Ltd | Construction | 2019 |
| Ridgewood Contracts Limited | Construction | 2006 |
| Ridout Consultancy Solutions Ltd | Professional & scientific | 2022 |
| Right Ratios Ltd | Professional & scientific | 2024 |
| Right Shift Projects Ltd | Manufacturing | 2023 |
| Right Shift Property Ltd | Real estate | 2024 |
| Right Utility Ltd | Energy | 2018 |
| Riley's Window Cleaning Services Limited | Administrative & support | 2024 |
| Rill Carpentry & Joinery Ltd | Construction | 2014 |
| Rilman Ltd | Wholesale & retail | 2023 |
| Rimmer’S Property Management Services Limited | Real estate | 2021 |
| Rimo-Construction Ltd. | Construction | 2016 |
| Ringside Developments Limited | Real estate | 1991 |
| Risca Chiropractic & Wellness Clinic Limited | Health & social care | 2019 |
| Risca Dragon Limited | Hospitality | 2026 |
| Risca House Limited | Hospitality | 2014 |
| Risca Nutrition Limited | Other services | 2025 |
| Risca Property Development Ltd | Real estate | 2012 |
| Risca Rugby Football Club Limited | Arts & recreation | 2016 |
| Risca Super Mart Ltd | Wholesale & retail | 2025 |
| Risca Valeting Centre Ltd | Administrative & support | 2025 |
| Rise & Grind Cafe Ltd | Hospitality | 2024 |
| Rising Care Group Ltd | Health & social care | 2025 |
| Rising Tide Limited | Information & communication | 2002 |
| Riskadviza Limited | Information & communication | 2016 |
| Ritestone Construction Limited | Administrative & support | 2016 |
| Ritif Ltd | Information & communication | 2025 |
| River Kwai Thai Spa Ltd | Other services | 2019 |
| River Taxis Limited | Professional & scientific | 2003 |
| Riverco Investments Limited | Real estate | 2016 |
| Riverfront Store Ltd | Wholesale & retail | 2024 |
| Riversee Limited | Construction | 2006 |
| Riverside Bar and Kitchen Limited | Hospitality | 2016 |
| Riverside Garage Newbridge Limited | Wholesale & retail | 2026 |
| Riverside Interiors Limited | Construction | 2008 |
| Riverside Taxis (Newport) Limited | Extraterritorial | 2008 |
| Riverside Trailers & Horseboxes Ltd | Wholesale & retail | 2021 |
| Riverside Ventures (Isle of Wight) Limited | Other services | 1998 |
| Riviera Breeze Limited | Real estate | 2007 |
| Riviera Sports & Prestige Ltd | Wholesale & retail | 2025 |
| Riyaan Foods Ltd | Hospitality | 2026 |
| Riyaan Ltd | Wholesale & retail | 2022 |
| Rizza Rentals Limited | Real estate | 2022 |
| RJ Building and Maintenance Ltd. | Construction | 2018 |
| RJ Mason Storage and Warehousing Limited | Administrative & support | 2016 |
| RJ Property Enterprises Ltd | Real estate | 2025 |
| RJ Property Management Limited | Real estate | 2022 |
| RJ Vincent Limited | Agriculture & fishing | 2015 |
| RJ Wheaton IT Consultancy Ltd | Information & communication | 2011 |
| RJ3 Limited | Administrative & support | 2015 |
| RJC Promotions Limited | Arts & recreation | 2018 |
| Rjcl Consultancy Group Ltd | Professional & scientific | 2025 |
| RJD14 Promotions Ltd | Arts & recreation | 2024 |
| RJD7 Properties Ltd | Real estate | 2024 |
| RJH Consultants Limited | Professional & scientific | 2010 |
| RJK Flooring Ltd | Construction | 2023 |
| RJP Sourcing Limited | Real estate | 2025 |
| Rjsa Limited | Professional & scientific | 2012 |
| Rjsnuffs Consultancy Ltd | Professional & scientific | 2024 |
| RJT Solutions Ltd | Administrative & support | 2023 |
| RK Care Consultancy Ltd | Professional & scientific | 2020 |
| RK Catering Ltd | Hospitality | 2024 |
| RKB Fabrications Ltd | Administrative & support | 2017 |
| RKB Surveying & Engineering Ltd | Construction | 2022 |
| RKD Corporation Ltd | Wholesale & retail | 2011 |
| RKR Solution Ltd | Construction | 2025 |
| RKS & CKS Properties Ltd | Real estate | 2024 |
| RKW Commercials Ltd | Administrative & support | 2026 |
| RL Consulting Ltd | Information & communication | 2023 |
| Rlmts Controls Ltd | Manufacturing | 2022 |
| RLS Property & Ltd | Real estate | 2023 |
| RM Coaching Services Ltd | Health & social care | 2025 |
| RM Combat Sports Ltd | Wholesale & retail | 2025 |
| RM Plumbing & Electrical Ltd | Construction | 2011 |
| RM06 Properties Ltd | Real estate | 2022 |