| Revere Pictures Ltd | Professional & scientific | 2020 |
| Revisepharma Ltd | Education | 2022 |
| Revolutionary Spaces Ltd | Construction | 2018 |
| Rfph Ltd | Construction | 2016 |
| RGE Property Limited | Real estate | 2025 |
| RGH Haulage Limited | Transport & logistics | 2021 |
| RGM Carpentry Limited | Construction | 2006 |
| Rhjs Homes Ltd | Real estate | 2024 |
| Rhoden Engineering Services Ltd | Construction | 2022 |
| RHP Ltd | Professional & scientific | 2015 |
| Rhythm for Learning Limited | Administrative & support | 2013 |
| Rhythm for Reading Services Limited | Administrative & support | 2013 |
| Ribnovo Ltd | Construction | 2012 |
| Riccio Builders Limited | Construction | 2015 |
| Richard and Sons Property Limited | Real estate | 2024 |
| Richard State Independent Estate Agents Limited | Administrative & support | 2014 |
| Richmond Tuition London Ltd | Education | 2023 |
| Richmonds Estate Agents.Com Limited | Professional & scientific | 2005 |
| Richter Resources Limited | Water & waste | 2023 |
| Ridge Road (Sutton) Limited | Households | 2013 |
| Ridgeland Associates Limited | Wholesale & retail | 1998 |
| Right Build Group Ltd | Construction | 2024 |
| Right Choice Electrical Services Ltd | Construction | 2026 |
| Right Instinct Limited | Professional & scientific | 2006 |
| Rilke House Management Limited | Households | 1979 |
| Ringstead Carshalton Management Company Limited | Households | 1995 |
| Ringstead Road Management Company Limited | Households | 1982 |
| Ringway Enterprise Services Limited | Construction | 2017 |
| Rinks Cash N Bulk Ltd | Wholesale & retail | 2025 |
| Rising Field Ltd | Hospitality | 2026 |
| Risk Management and Insurance Services Limited | Financial services | 1990 |
| Risky Business Management Ltd | Information & communication | 2021 |
| Riverlight Limited | Administrative & support | 2015 |
| Rivus Midco Limited | Financial services | 2020 |
| Rivus Topco Limited | Professional & scientific | 2017 |
| Riya Travel & Tours Ltd | Administrative & support | 2017 |
| RJ Heating Ltd. | Construction | 2017 |
| RJ Realty Limited | Real estate | 2018 |
| RJB & SON HGV Maintenance Ltd | Manufacturing | 2012 |
| RJH Scaffolding Ltd. | Construction | 2021 |
| Rjrd Limited | Health & social care | 2024 |
| RK Consultants Limited | Professional & scientific | 2008 |
| RK Renovations-Etc Limited | Construction | 2026 |
| RKS Homes Ltd | Real estate | 2021 |
| RKS Medics Ltd | Health & social care | 2023 |
| RL Recycling (London) Ltd | Water & waste | 2023 |
| RL Services (London) Ltd | Construction | 2022 |
| RLC Catering (Wimbledon) Ltd | Hospitality | 2014 |
| RLG Services Ltd | Other services | 2010 |
| RLR Trade Ltd | Wholesale & retail | 2022 |
| Rlvc Ltd | Information & communication | 2024 |
| RLX Homes/Pws Ltd | Professional & scientific | 2024 |
| RM Cleaning Ltd | Administrative & support | 2020 |
| RM Waste Clearance Ltd | Water & waste | 2021 |
| RME Research Ltd | Professional & scientific | 2015 |
| RMK Developments Ltd | Real estate | 2018 |
| RMK Properties Limited | Financial services | 2019 |
| Rmortimer Limited | Professional & scientific | 2019 |
| RMR Logistics Limited | Transport & logistics | 2025 |
| RMS Estates Ltd | Real estate | 2022 |
| RMS Fine Dining Group Ltd | Hospitality | 2025 |
| RMT Interiors Limited | Construction | 2014 |
| RMV Props Ltd | Information & communication | 2025 |
| RN Study Points Ltd | Education | 2025 |
| Roach Land Co Ltd | Real estate | 2026 |
| Roach Property Holdings Ltd | Real estate | 2024 |
| Road Assistance IC Ltd | Transport & logistics | 2025 |
| Roadplan Limited | Health & social care | 2003 |
| Roadside Welcome Limited | Wholesale & retail | 2018 |
| Robert Russell Ltd | Construction | 2012 |
| Robert Warren Limited | Professional & scientific | 2023 |
| Robin Hood MLE Ltd | Health & social care | 2022 |
| Robinson Residential Yorkshire Ltd | Real estate | 2026 |
| Robmakesfilms Ltd | Information & communication | 2020 |
| Robot Dental Limited | Health & social care | 2017 |
| Robust Management Services Ltd | Professional & scientific | 2025 |
| Robyn Louise Hairdressing Ltd | Other services | 2024 |
| Rochester Lodge Dental Practice Limited | Health & social care | 2024 |
| Rochester Lodge Limited | Real estate | 2023 |
| Rock Dove Live Limited | Administrative & support | 2026 |
| Rock House Enterprises Ltd | Real estate | 2021 |
| Rock House Freehold Ltd | Real estate | 2021 |
| Rock House Garden Ltd | Real estate | 2021 |
| Rock IT With RHO Ltd | Arts & recreation | 2019 |
| Rock Solid Builders Ltd | Construction | 2025 |
| Roda RSS Ltd | Health & social care | 2026 |
| Rodin Cafe Ltd | Hospitality | 2024 |
| Rodrigo Podiatry Limited | Health & social care | 2019 |
| Roeh Limited | Information & communication | 2012 |
| Roeh Property Ltd | Real estate | 2022 |
| Rohan 4B Ltd | Professional & scientific | 2022 |
| Rohkaan Properties Limited | Real estate | 2026 |
| Rollers Property Limited | Real estate | 2025 |
| Rollersigns Limited | Other services | 2009 |
| ROM Construction Services Limited | Construction | 2013 |
| Rominos Pizza (UK) Ltd | Hospitality | 2019 |
| Romney House Management Company Limited | Households | 1978 |
| Romulus Properties 101 Ltd | Real estate | 2024 |
| Rona Contractor Ltd | Health & social care | 2017 |
| Ronmar Place Estate Management Limited | Real estate | 2026 |