| Ratio Capital Ltd | Other services | 2019 |
| Rationes Associates Ltd | Professional & scientific | 2025 |
| Ratnarajah Limited | Construction | 2020 |
| Raul Construct Ltd | Construction | 2019 |
| Raulramos Cleaning Ltd | Administrative & support | 2023 |
| RAV Prop Limited | Real estate | 2018 |
| Ravana Limited | Real estate | 2025 |
| Ravat Commercial Properties Ltd | Real estate | 2023 |
| Ravat Residential Properties Limited | Real estate | 2023 |
| Ravengate Estates Limited | Transport & logistics | 1991 |
| Ravengate Limited | Real estate | 1993 |
| Ravengrid Ltd | Other services | 2026 |
| Ravenscroft Healthcare Limited | Health & social care | 2007 |
| Ravi Garg and Associates Limited | Professional & scientific | 2019 |
| Ravi Motorcycle Limited | Wholesale & retail | 2025 |
| Ravi SOL Ltd | Professional & scientific | 2012 |
| Ravine Investments Ltd | Financial services | 2015 |
| Ravione Ltd | Wholesale & retail | 2025 |
| Raviraj Ltd | Real estate | 2013 |
| Ravka Ltd | Hospitality | 2005 |
| RAW Capital Ltd | Extraterritorial | 2013 |
| RAW Global Ltd | Administrative & support | 2020 |
| RAW2K Limited | Wholesale & retail | 2001 |
| Rawfly Private Limited | Wholesale & retail | 2025 |
| Rawhide A1 Ltd | Real estate | 2024 |
| Rawlinsons Property Limited | Real estate | 2022 |
| Rawstone Hire Limited | Administrative & support | 2003 |
| RAY Bakery Ltd | Manufacturing | 2020 |
| RAY Business Solutions Ltd | Professional & scientific | 2019 |
| RAY Court Residents Association Limited | Administrative & support | 1958 |
| RAY Harris Limited | Manufacturing | 2003 |
| RAY Lettings Limited | Real estate | 2020 |
| RAY Urgent Care and Aesthetics Limited | Health & social care | 2024 |
| Raya International Logistics Ltd | Transport & logistics | 2025 |
| Rayalasoft Solutions Ltd | Information & communication | 2008 |
| Raydean Group Limited | Financial services | 2020 |
| Raydean Invest Limited | Real estate | 2020 |
| Raydin Group Ltd | Information & communication | 2026 |
| Rayhan Commerce Ltd | Wholesale & retail | 2025 |
| Rayjia Investments Ltd | Real estate | 2023 |
| RAYKA26 Ltd | Wholesale & retail | 2026 |
| Rayleigh Close Ltd | Construction | 2025 |
| Rayman Housing Ltd | Real estate | 2020 |
| Rayman Investments Ltd | Real estate | 2018 |
| Raymatik Productions Ltd | Information & communication | 2024 |
| Raymond Chandler Limited | Other services | 2004 |
| Raymond Lankston Limited | Professional & scientific | 2019 |
| Rayne Yachts Limited | Transport & logistics | 2006 |
| Rayners (Extra Care Home) Limited | Health & social care | 1988 |
| Rayners Chowk Ltd | Hospitality | 2024 |
| Rayners Close Limited | Construction | 2019 |
| Rayners Construction Ltd | Construction | 2024 |
| Rayners Development Limited | Construction | 2019 |
| Rayners Garage London Limited | Wholesale & retail | 2026 |
| Rayners Lane Bike Motors Limited | Wholesale & retail | 2023 |
| Rayners Lane Consultants Ltd | Extraterritorial | 2014 |
| Rayners Lane Motors Limited | Wholesale & retail | 2023 |
| Rayon Holdings Limited | Real estate | 2016 |
| Rayon Realty 1 Limited | Real estate | 2018 |
| Raysoft Ltd | Information & communication | 2025 |
| Rayway Building & Development Ltd | Construction | 2025 |
| Raywind ARC Limited | Information & communication | 2022 |
| Rayz Global Consultancy Services Ltd | Professional & scientific | 2025 |
| Raza Estates Limited | Real estate | 2020 |
| Razan Bread Ltd | Administrative & support | 2017 |
| Razmyx Ltd | Health & social care | 2021 |
| Raztrans Ltd | Transport & logistics | 2019 |
| RB Carpet Cleaning Limited | Administrative & support | 2026 |
| RB Property Services Limited | Real estate | 2020 |
| RB Stores Limited | Wholesale & retail | 2018 |
| Rbautodetailing Ltd | Administrative & support | 2023 |
| Rbbs Management Ltd | Real estate | 2016 |
| RBC London LLP | | 2011 |
| RBD Electrical Ltd | Construction | 2020 |
| RBG Building Ltd | Construction | 2020 |
| RBG Consultants Ltd | Information & communication | 2008 |
| RBG Utility Ltd | Energy | 2021 |
| Rbmph Limited | Wholesale & retail | 2021 |
| RBN Entertainment Limited | Information & communication | 2010 |
| Rbpp Limited | Construction | 2025 |
| Rbpropco Limited | Real estate | 2019 |
| RBS Properties (London) Limited | Real estate | 2016 |
| RC Flavours of India Ltd | Hospitality | 2020 |
| RC Group Transport Ltd | Transport & logistics | 2026 |
| RC Smart Investments Limited | Real estate | 2018 |
| Rc&Groundwork Ltd | Construction | 2019 |
| RCB Consultants Limited | Professional & scientific | 2017 |
| Rcca Construction Ltd | Construction | 2019 |
| Rcct CIC | Public administration | 2020 |
| RCD Logistics Ltd | Construction | 2014 |
| RCH Bridgwater Ltd | Real estate | 2025 |
| Rckitout Ltd | Wholesale & retail | 2020 |
| RCL Estates Limited | Real estate | 2018 |
| RCL Management Ltd | Professional & scientific | 2021 |
| RCL Services and Maintenance Ltd | Other services | 2022 |
| RCM Asset Management Ltd | Information & communication | 2021 |
| RCM Global Ltd | Financial services | 2015 |
| RCM Leasing Services Ltd | Real estate | 2022 |
| Rcmchef Ltd | Hospitality | 2025 |
| RCP Galacticos Ltd | Financial services | 2013 |