| RFB Engineering Solutions Ltd | Information & communication | 2015 |
| RGD CTS Ltd | Information & communication | 2022 |
| RGP Energy Ltd | Administrative & support | 2012 |
| RHG WK Limited | Households | 2017 |
| Rhmi Ltd | Wholesale & retail | 2018 |
| RI Computers Ltd | Wholesale & retail | 2022 |
| Riari J'Dorn Ltd | Wholesale & retail | 2014 |
| Richard Jardine Limited | Manufacturing | 1979 |
| Richard Rogers Limited | Manufacturing | 2024 |
| Richardson Scott Limited | Information & communication | 2000 |
| Richmond Playball Limited | Arts & recreation | 2012 |
| Richmond Theatre Limited | Arts & recreation | 1999 |
| Richsense Limited | Wholesale & retail | 2019 |
| Ridgeway House Management Company Limited | Real estate | 2004 |
| Ridgeway Road Association Limited | Other services | 2000 |
| Ridgway Residents Association (Pyrford) Limited | Households | 1975 |
| Rift Resources Limited | Professional & scientific | 2011 |
| Rigden Holdings Ltd | Financial services | 2021 |
| Rihla Threads Ltd | Wholesale & retail | 2024 |
| Rimit Homes Limited | Real estate | 2023 |
| Ringtail Technologies Limited | Professional & scientific | 2021 |
| Rinquest Ltd | Education | 2026 |
| RIO House Management Company Limited | Real estate | 2025 |
| RIO Painting and Decorating Ltd | Construction | 2020 |
| Ripley Auto Centre Ltd | Wholesale & retail | 2023 |
| Ripley Bowling Club | Arts & recreation | 2009 |
| Ripley Business CIC | Other services | 2020 |
| Ripley Detailing Ltd | Professional & scientific | 2018 |
| Ripley Farm & Produce Market Community Interest Company | Other services | 2007 |
| Ripley Nurseries Limited | Agriculture & fishing | 2000 |
| Ripple Tech Limited | Information & communication | 2017 |
| Risk Calc Ltd | Professional & scientific | 2009 |
| Risk Contained Limited | Administrative & support | 2021 |
| Riskfintech Ltd | Administrative & support | 2020 |
| Riskflag Ltd | Information & communication | 2022 |
| Ritchie Product Advisory Ltd | Professional & scientific | 2026 |
| Rivara Limited | Professional & scientific | 2022 |
| River Boat Charters Ltd | Administrative & support | 2019 |
| River Court GU215FT Enfranchisement Limited | Households | 2025 |
| River Island (Homes) Limited | Construction | 1991 |
| RJ Training Solution Limited | Education | 2021 |
| RJT GAS and Plumbing Limited | Construction | 2026 |
| RK Capital Investments Ltd | Extraterritorial | 2021 |
| RK Property Renovations Ltd | Construction | 2025 |
| RK Sales and Marketing Ltd | Other services | 2018 |
| RKR Imaging Ltd | Health & social care | 2026 |
| Rlden Limited | Real estate | 2017 |
| RLH Advisory Limited | Other services | 2024 |
| RLR Freehold Management Company Limited | Households | 2026 |
| RM Business Consultants Limited | Information & communication | 2014 |
| RM Developments Design and Build Ltd | Construction | 2015 |
| RM Developments Property Management Ltd | Administrative & support | 2017 |
| RME Group Ltd | Real estate | 2023 |
| RMH Service Solutions Ltd | Construction | 2023 |
| RMS Logistics Ltd | Transport & logistics | 2023 |
| Rntw Consultancy Limited | Professional & scientific | 2014 |
| Roadfit Medical Ltd | Health & social care | 2026 |
| Roadoservices Ltd | Administrative & support | 2025 |
| Roatan Limited | Administrative & support | 2014 |
| Robert Hodge FIC Ltd | Financial services | 2018 |
| Robert Mear Ltd | Professional & scientific | 2014 |
| Robert Window Cleaning Ltd | Administrative & support | 2021 |
| Robin Baillie Ltd | Administrative & support | 2023 |
| Robin Hood Grove Management Company Limited | Households | 2022 |
| Robins Removals Limited | Other services | 2006 |
| Robinson Fielding Holdings Ltd | Professional & scientific | 2013 |
| Robinsondot Ltd | Real estate | 2024 |
| ROC Studios Ltd | Arts & recreation | 2024 |
| Rocal Radiology Limited | Health & social care | 2025 |
| Rochenick Road Services Ltd | Transport & logistics | 2015 |
| Rock Industrial & Welding Supplies Ltd | Extraterritorial | 1990 |
| Rock the Heirloom Limited | Extraterritorial | 2021 |
| Rocket Fish Group Ltd | Professional & scientific | 2017 |
| ROD Mitchell Consultancy Services Limited | Financial services | 2023 |
| Rodrigues Gardens Ltd | Administrative & support | 2025 |
| Rogitech Ltd | Wholesale & retail | 2010 |
| Roles Broderick Roofing Limited | Construction | 2004 |
| Roofers Surrey Ltd | Construction | 2026 |
| Roofwise Roofing & Building Maintenance Ltd | Construction | 2025 |
| Room Rental 4 U Limited | Real estate | 2023 |
| Rooms Make a Home Portfolio Limited | Real estate | 2026 |
| Rosa Boulevard Ltd | Real estate | 2021 |
| Rose Meadow (West END) Management Company Limited | Households | 2004 |
| Rose Medical Solutions Limited | Information & communication | 2008 |
| Roseberries Ltd. | Professional & scientific | 2007 |
| Rosebray Developments Ltd | Extraterritorial | 2014 |
| Rosebray Estates Ltd | Construction | 2002 |
| Rosewood Clinic Limited | Health & social care | 2011 |
| Rosewood Manor Limited | Real estate | 2025 |
| Rosewood Solicitors Limited | Professional & scientific | 2016 |
| Roslyn Court (Holdings) Limited | Households | 1994 |
| Roslyn Court Property Services Limited | Real estate | 2017 |
| Ross Landscapes Limited | Construction | 2002 |
| Rossmore Court Property Management Company Limited | Households | 2000 |
| Rosso Bianco Wines Ltd | Wholesale & retail | 2015 |
| Rosso Mazara Limited | Hospitality | 2018 |
| Rostam Capital Ltd | Professional & scientific | 2020 |
| Rotax Limited | Professional & scientific | 2014 |
| Rourkes Transport Limited | Professional & scientific | 2025 |
| Rouxfix Limited | Construction | 2016 |