| Remote Planning Consultants Ltd | Professional & scientific | 2025 |
| Remotioned Technologies Ipco Limited | Information & communication | 2020 |
| Remy AI Ltd | Information & communication | 2024 |
| REN Creative Ltd | Information & communication | 2022 |
| Rena'Z Ltd | Other services | 2014 |
| Renaissance N B Ltd | Real estate | 2006 |
| Renal Creations Ltd | Wholesale & retail | 2025 |
| Renav Limited | Information & communication | 2013 |
| Renovaze Ltd | Construction | 2021 |
| Renovaze Property Group Ltd | Real estate | 2025 |
| Research Connoisseur Ltd | Information & communication | 2023 |
| Reshape Clinique Ltd | Other services | 2019 |
| Residential & Commercial Property Solutions Limited | Real estate | 2022 |
| Resolute Retail Limited | Wholesale & retail | 2017 |
| Respite for Carers | Health & social care | 2012 |
| Restart-It Limited | Professional & scientific | 2010 |
| Restonseat Ltd | Manufacturing | 2023 |
| Restoring Cars LEO Ltd | Wholesale & retail | 2024 |
| Resz Homes Ltd | Real estate | 2023 |
| Retail Software Solutions Limited | Administrative & support | 1999 |
| Retail Technology Solutions Ltd | Information & communication | 2021 |
| Rethink Fertility Limited | Health & social care | 2000 |
| Retro Bite Ltd | Manufacturing | 2021 |
| Retrospective Modernism Limited | Wholesale & retail | 2019 |
| Revenue Generation Ltd | Information & communication | 2011 |
| Revive Hair & Beauty Ltd | Other services | 2026 |
| Revohouse Ltd | Construction | 2023 |
| Reward Motor Company Limited | Extraterritorial | 2003 |
| REX Chosen Ministries - the Fathers House | Construction | 2010 |
| Reydia Ltd | Real estate | 2025 |
| Reynolds Essentials Ltd | Wholesale & retail | 2024 |
| Rgsourcingsolutions Limited | Real estate | 2025 |
| Rhco Limited | Professional & scientific | 2015 |
| Rhenae Ltd | Wholesale & retail | 2020 |
| RHILL1 Limited | Real estate | 2018 |
| Rhodes Indigo Limited | Manufacturing | 2018 |
| RI Interiors Limited | Construction | 2012 |
| Ribaventures Ltd | Real estate | 2021 |
| Ribeiro Coaching Ltd | Arts & recreation | 2022 |
| Ricalo Properties LLP | | 2023 |
| Ricalo Property Management Limited | Real estate | 2017 |
| Ricard Limited | Financial services | 2017 |
| Rich Tea Limited | Real estate | 2010 |
| Richard Hill Design Limited | Administrative & support | 2007 |
| Richard James Brunt Limited | Other services | 2016 |
| Richard James Financial Planning Ltd | Financial services | 2019 |
| Richard Leon PR Limited | Professional & scientific | 2010 |
| Richard Zeff Property Services Ltd | Real estate | 2018 |
| Richards & Appleby Holdings Limited | Professional & scientific | 2007 |
| Richards & Appleby Limited | Manufacturing | 1968 |
| Richardson House Management Limited | Construction | 2007 |
| Richelme Ltd | Construction | 2019 |
| Richland Management Limited | Construction | 2011 |
| Richlex Ltd | Real estate | 2007 |
| Richmond Building Developments Ltd | Real estate | 2011 |
| Richmond Civil Engineering Limited | Construction | 2010 |
| Richmond Equipment Hire Ltd | Administrative & support | 2019 |
| Richmond Group Holdings Ltd | Financial services | 2019 |
| Richmond Rail Services Limited | Construction | 2014 |
| Ride Architects Limited | Professional & scientific | 2021 |
| Rideplus Limited | Other services | 2018 |
| Ridgeline Energy Advisory Ltd | Professional & scientific | 2026 |
| Ridgeway Film Ltd | Information & communication | 2022 |
| Ridha Alwan Coffee Limited | Wholesale & retail | 2023 |
| Ridley & Scott Ltd | Financial services | 2023 |
| Ridley & Scott Ventures Ltd | Financial services | 2023 |
| Riffel 1 Ltd | Administrative & support | 2015 |
| RIG Builders Limited | Construction | 2019 |
| Riga Investments Limited | Real estate | 2018 |
| Riga Trading Ltd | Real estate | 2024 |
| Riga Wood Limited | Wholesale & retail | 1991 |
| Rigglo X Investments Ltd | Real estate | 2021 |
| Rigsel Limited | Real estate | 2024 |
| Rihanna Services Ltd | Construction | 2018 |
| Rikshin Limited | Other services | 2015 |
| Riley Square Limited | Wholesale & retail | 2018 |
| Rinfol Consulting Limited | Information & communication | 2013 |
| Rinnovare Construction & Decoration Ltd | Construction | 2025 |
| Ripkal Ltd | Administrative & support | 2025 |
| Ripkal Properties Ltd | Real estate | 2025 |
| Risalat International Centre for Education and Dialogue Ltd | Education | 2023 |
| Risay Consulting Limited | Professional & scientific | 2011 |
| Risk Reduction Technology Limited | Information & communication | 2010 |
| Ristorante Italia Ltd | Hospitality | 2023 |
| River Spice Takeaway Limited | Hospitality | 2024 |
| Riverdale House RTM Company Limited | Households | 2024 |
| Riveroak Associates Limited | Construction | 1996 |
| Rizlink Ltd | Construction | 2019 |
| Rizqly Ventures Ltd | Financial services | 2025 |
| RJ Fitness Registered Ltd | Other services | 2021 |
| RJM Engineering Solutions Limited | Construction | 2014 |
| RK & Sons Investments Ltd | Real estate | 2020 |
| RK Fruits & Vegetables Limited | Wholesale & retail | 2025 |
| RK Retail Associates Ltd | Wholesale & retail | 2023 |
| RK Star Property Limited | Real estate | 2025 |
| Rknatural Limited | Wholesale & retail | 2024 |
| RKP Solutions Limited | Administrative & support | 2009 |
| RLR Consulting Group Ltd | Professional & scientific | 2022 |
| RM Finance Contractors Ltd | Professional & scientific | 2015 |
| RMJ Partners LLP | | 2010 |