| Rahal Ltd | Financial services | 2021 |
| Rahee Marketing Ltd | Wholesale & retail | 2026 |
| Raheem Farooq Ltd | Real estate | 2023 |
| Rahi PVT Ltd | Wholesale & retail | 2023 |
| Rahimtulla Services Limited | Professional & scientific | 2013 |
| Rahk Ltd | Real estate | 2022 |
| Raichura Holdings Limited | Financial services | 2023 |
| Raidom Systems LLP | | 2014 |
| Rail Solutions and Innovations Ltd | Transport & logistics | 2005 |
| Railtranz Systems Limited | Information & communication | 2010 |
| Rainbow Rubbish Removals Ltd | Transport & logistics | 2019 |
| Rajen Repairs Ltd | Administrative & support | 2024 |
| Rajesh Krishnamoorthi Ltd | Information & communication | 2016 |
| Rajkrishna Property Ltd | Real estate | 2021 |
| Rajveta Test Consultants Limited | Information & communication | 2014 |
| RAK Pack Ltd | Wholesale & retail | 2020 |
| Rakish a Rains Ltd | Manufacturing | 2016 |
| Raksons Properties Limited | Real estate | 2017 |
| Ralco Tubings Limited | Wholesale & retail | 1972 |
| Ralph Lauren UK Limited | Wholesale & retail | 1994 |
| Ralube Limited | Manufacturing | 1968 |
| RAM Build Construction Ltd | Construction | 2018 |
| Ramex International Ltd | Wholesale & retail | 2018 |
| Ramkabir Limited | Financial services | 2024 |
| Rampart Ventures Limited | Real estate | 2021 |
| Ramtech Consulting Limited | Professional & scientific | 2014 |
| Ramzan Estates Ltd | Real estate | 2021 |
| Ramzan Solution Limited | Wholesale & retail | 2015 |
| Rana G Transport Ltd | Transport & logistics | 2024 |
| Rand Engineering Limited | Professional & scientific | 2022 |
| Randall Court Freeholders Limited | Real estate | 2004 |
| Randall Court Residents Association Limited | Real estate | 1970 |
| Randalls Maintenance Ltd | Construction | 2025 |
| Random Café C.I.C. | Hospitality | 2017 |
| Ranelagh Consulting Limited | Professional & scientific | 2016 |
| Rangeblock Property Management Limited | Households | 1988 |
| Rangemore Limited | Construction | 2017 |
| Ransjay Company Limited | Administrative & support | 2022 |
| Ranya Express Ltd | Wholesale & retail | 2025 |
| Rao's Culinary Consultants & Services Limited | Hospitality | 2018 |
| Rapid Electrical Distributors (Watford) Limited | Wholesale & retail | 2016 |
| Rapid Estates Limited | Real estate | 2026 |
| Rapid Pharma Limited | Wholesale & retail | 2018 |
| Rapid Racquet Restringing Limited | Wholesale & retail | 2022 |
| Rapid Rise Distribution Ltd | Wholesale & retail | 2025 |
| Rapide Build Ltd | Construction | 2020 |
| Rapidelle Ltd | Transport & logistics | 2020 |
| Rapidocolor Limited | Manufacturing | 2009 |
| Rapidsource Telecom Limited | Information & communication | 2006 |
| Raqassist Ltd | Professional & scientific | 2006 |
| Rara Plus Limited | Health & social care | 2018 |
| Raree Investments Limited | Real estate | 2017 |
| Rashida Ltd | Administrative & support | 2021 |
| Rashida Rahman Ltd | Real estate | 2021 |
| Rashwan Limited | Real estate | 2015 |
| Rasons (Wembley) Limited | Wholesale & retail | 2022 |
| Raspberry Basil Ltd | Professional & scientific | 2021 |
| Raspberry IT Limited | Information & communication | 2015 |
| Rated Financial Limited | Financial services | 2014 |
| Rational Selection Ltd | Information & communication | 2019 |
| Ratnam Group Ltd | Administrative & support | 2024 |
| Ratnams Engineering Limited | Construction | 2009 |
| Rauffman Properties Ltd | Real estate | 2018 |
| Raval Consultants Ltd | Health & social care | 2022 |
| Raven Construction Limited | Information & communication | 2012 |
| Ravenspear Consulting Ltd | Information & communication | 2019 |
| Raventree Management Ltd | Information & communication | 2016 |
| Ravi Juthani Limited | Professional & scientific | 2022 |
| Ravlin Ltd | Wholesale & retail | 2024 |
| RAW Chitra Ltd | Professional & scientific | 2024 |
| RAW Vision Limited | Information & communication | 1990 |
| RAY Ingarfield Ltd | Construction | 2019 |
| Rayanpaiting&Decoratio Ltd | Professional & scientific | 2025 |
| Rayanza UK Ltd | Information & communication | 2022 |
| Rayard Engineering Ltd | Professional & scientific | 2014 |
| Raye Solutions Ltd | Real estate | 2021 |
| Rayene Services Ltd | Construction | 2014 |
| Rayl Limited | Professional & scientific | 2017 |
| Raymar Legal Ltd | Professional & scientific | 2019 |
| Raymond Associates Ltd | Administrative & support | 2009 |
| Raymondo Inns Limited | Hospitality | 2018 |
| Rayners Properties Limited | Real estate | 1999 |
| Razee Ltd | Information & communication | 2025 |
| Razlam Ltd | Wholesale & retail | 2025 |
| Razoo Investments Limited | Real estate | 2019 |
| Razor Edged Limited | Information & communication | 2014 |
| Razoryn Ecommerce Limited | Wholesale & retail | 2025 |
| Razoryn Limited | Wholesale & retail | 2022 |
| RB Building (Services) Limited | Construction | 2011 |
| RB Building and Restoration Ltd | Construction | 2026 |
| RB Sialkot Limited | Hospitality | 2018 |
| RBA Digital Ltd | Professional & scientific | 2025 |
| RBN Walker Consulting Limited | Professional & scientific | 2024 |
| RBR Security Services Ltd | Administrative & support | 2025 |
| RBW Associates Limited | Information & communication | 2014 |
| RC Legacy Limited | Information & communication | 2010 |
| RCD Services Ltd | Professional & scientific | 2016 |
| RCF Solutions Ltd | Other services | 2021 |
| Rcrobinson Ltd | Professional & scientific | 2021 |
| RCS Property Investments Ltd | Real estate | 2014 |