| R&D Enterprise Holdings Limited | Real estate | 2016 |
| R&D Sealant Contractors Ltd | Construction | 2019 |
| R&G Construction Ltd | Construction | 2020 |
| R&I Property Group Ltd | Real estate | 2026 |
| R&K Auto Spares Ltd | Wholesale & retail | 2017 |
| R&K Care Services Ltd. | Other services | 2014 |
| R&K Construction Work Ltd | Construction | 2024 |
| R&L Properties Enterprise Limited | Construction | 2025 |
| R&R Motor Essex Ltd | Wholesale & retail | 2021 |
| R&S Car Motors Limited | Wholesale & retail | 2022 |
| R&V Brothers Ltd | Transport & logistics | 2008 |
| R&V Developer Ltd | Construction | 2024 |
| R&V Drinks Limited | Wholesale & retail | 2024 |
| R&V Projects Limited | Construction | 2025 |
| R-Phoenix Ltd | Professional & scientific | 2023 |
| R.And J.Hollington Limited | Agriculture & fishing | 1959 |
| R.D.C. London Limited | Wholesale & retail | 2005 |
| R.K Building & Renovations Ltd | Construction | 2024 |
| R.K YUG Construction Ltd. | Construction | 2025 |
| R.K. Power Solution Ltd | Construction | 2023 |
| R.M.P. Shuttering Ltd | Construction | 2015 |
| R.N.T Cleaning Services Ltd | Administrative & support | 2019 |
| R.S.T. Camion Limited | Extraterritorial | 2024 |
| R.W. Freight Services Limited | Transport & logistics | 1971 |
| R6SERVICES Limited | Construction | 2024 |
| RA Cleaning Ltd | Administrative & support | 2021 |
| RA Trade Limited | Wholesale & retail | 2022 |
| RAA Ventures Ltd | Financial services | 2018 |
| Raaha Holdings Limited | Real estate | 2025 |
| Raahi Ltd | Wholesale & retail | 2025 |
| Raahim Property Ltd | Real estate | 2024 |
| Rabin Light of the World | Administrative & support | 2005 |
| Rabs Trading Limited | Wholesale & retail | 2026 |
| RAC P&H Ltd | Construction | 2014 |
| RAD & NAL Ltd | Real estate | 2018 |
| Radax Construction Ltd | Construction | 2025 |
| Rade Transport Ltd | Transport & logistics | 2023 |
| Radecare Ltd | Public administration | 2023 |
| Radev Construction Ltd | Construction | 2026 |
| Radheshyam Construction Ltd | Construction | 2025 |
| Radhuni Romford Ltd | Hospitality | 2024 |
| Radiant 247 Limited | Other services | 2017 |
| Radiant Electrical Ltd | Construction | 2024 |
| Radiant Face Clinic Ltd | Other services | 2025 |
| Radical Tech Ltd | Information & communication | 2019 |
| Radisson Global Limited | Professional & scientific | 2013 |
| Raees Noor Holdings Ltd | Real estate | 2019 |
| RAF Property & Consultants Ltd | Financial services | 2022 |
| Rafaqat Caterers Limited | Hospitality | 2021 |
| Raging Bull Active Wear Ltd | Wholesale & retail | 2025 |
| Rahand IQ Ltd | Wholesale & retail | 2025 |
| Rahat and Rida Medical Services Limited | Health & social care | 2009 |
| Rahdan Ltd | Hospitality | 2021 |
| Raheel Property Investment Ltd | Real estate | 2023 |
| Rahma Properties Ltd | Real estate | 2006 |
| Rahman (London) Limited | Professional & scientific | 2015 |
| RAI Complex Care Limited | Health & social care | 2022 |
| RAI Facade Ltd | Construction | 2022 |
| Raibeel Dynamic Ltd | Wholesale & retail | 2025 |
| Raid Transport UK Ltd | Water & waste | 2020 |
| Railem Building Construction Ltd | Construction | 2023 |
| Railsafe Limited | Professional & scientific | 2017 |
| Railwayz Limited | Construction | 2025 |
| Rain Collections Ltd | Professional & scientific | 2026 |
| Rain Enterprises Ltd | Construction | 2015 |
| Rain Homes Ltd | Real estate | 2025 |
| Rainbird Music Limited | Arts & recreation | 2010 |
| Rainbow Infotech Ltd | Information & communication | 2018 |
| Rainham A&M Holdings Limited | Real estate | 2019 |
| Rainham and Beam Park Regeneration LLP | | 2018 |
| Rainham and Beam Park Regeneration Nominee Company Limited | Extraterritorial | 2023 |
| Rainham Investment Holdings Limited | Financial services | 2002 |
| Rainham Islamic Group Limited | Education | 2024 |
| Rainham Reinforcement Limited | Wholesale & retail | 2019 |
| Rainham Securities Holdings Limited | Financial services | 2019 |
| Rainham Securities Limited | Real estate | 1999 |
| Rainham Steel Company Limited | Wholesale & retail | 1973 |
| Rainham Steel Holdings Limited | Financial services | 2002 |
| Rainham Steel Investments Ltd. | Real estate | 1987 |
| Rainham Steel Tubes Limited | Extraterritorial | 1994 |
| Rainsunsoil Ltd | Hospitality | 2026 |
| Rainy Day Business Ltd | Real estate | 2014 |
| RAJ of India Collier ROW Limited | Hospitality | 2017 |
| Raja Auto Limited | Wholesale & retail | 2023 |
| Raja Elite Security Services Ltd | Administrative & support | 2026 |
| Raja Financial Services Ltd | Financial services | 2019 |
| Raja Salahuddin Designs Limited | Wholesale & retail | 2025 |
| Rajahs Punjabi Meat Centre Limited | Wholesale & retail | 2024 |
| Rajastan Transport Ltd | Transport & logistics | 2026 |
| Rajeswary Limited | Real estate | 2024 |
| Raji's Kitchen Ltd | Hospitality | 2024 |
| Rajni Health & Fitness Ltd | Arts & recreation | 2023 |
| Rajuri Siddhi Limited | Professional & scientific | 2013 |
| Raka Buva Ltd | Wholesale & retail | 2024 |
| Rakh Industrial Group of Company Limited | Administrative & support | 2020 |
| Rald Consulting Limited | Professional & scientific | 2021 |
| Ralroy Properties Limited | Extraterritorial | 1959 |
| RAM Building Services Limited | Construction | 2001 |
| RAM First Solution Ltd | Construction | 2025 |
| Ramas Construction Limited | Construction | 2022 |