| Rush Enigma Limited | Other services | 2020 |
| Rush Estate Limited | Wholesale & retail | 2023 |
| Rush Exchange Limited | Wholesale & retail | 2023 |
| Rush Exchange Properties (One) Limited | Real estate | 2023 |
| Rush Exchange Properties (Three) Ltd | Real estate | 2023 |
| Rush Exchange Properties (Two) Limited | Extraterritorial | 2023 |
| Rush Franchising Ltd | Administrative & support | 2020 |
| Rush Franchising Properties (Eight) Limited | Extraterritorial | 2020 |
| Rush Franchising Properties (Five) Limited | Extraterritorial | 2020 |
| Rush Franchising Properties (One) Limited | Extraterritorial | 2020 |
| Rush Franchising Properties (SIX) Limited | Extraterritorial | 2020 |
| Rush Group Products Ltd | Wholesale & retail | 2022 |
| Rush Hair Group Limited | Wholesale & retail | 2016 |
| Rush Logistics (London) Ltd | Administrative & support | 2020 |
| Rush Modern Limited | Wholesale & retail | 2023 |
| Rush Networks (One) Limited | Extraterritorial | 2020 |
| Rush Networks Limited | Other services | 2020 |
| Rush Networks Properties (Eight) Ltd | Extraterritorial | 2021 |
| Rush Networks Properties (Fifteen) Ltd | Extraterritorial | 2021 |
| Rush Networks Properties (Five) Limited | Extraterritorial | 2020 |
| Rush Networks Properties (Nine) Ltd | Extraterritorial | 2021 |
| Rush Networks Properties (SIX) Limited | Extraterritorial | 2020 |
| Rush Networks Properties (TEN) Ltd | Extraterritorial | 2021 |
| Rush Networks Properties (Three) Limited | Real estate | 2020 |
| Rush Networks Properties (Twelve) Ltd | Extraterritorial | 2021 |
| Rush Networks Properties (Two) Ltd | Real estate | 2020 |
| Rush Operations Limited | Professional & scientific | 2023 |
| Rush PCB Limited | Administrative & support | 2004 |
| Rush Procurement Ltd | Administrative & support | 2020 |
| Rush Property Maintenance Ltd | Real estate | 2026 |
| Rush Putney Salon Ltd | Other services | 2022 |
| Rush Resources Limited | Professional & scientific | 2024 |
| Rush South Limited | Other services | 2020 |
| Rush Support Limited | Administrative & support | 2022 |
| Rush Technologies Ltd | Information & communication | 2022 |
| Rush Tower Limited | Wholesale & retail | 2023 |
| Rushdrop Ltd | Transport & logistics | 2025 |
| Rushey Field RTM Company Ltd | Households | 2010 |
| Ruskin Court Residents Limited | Households | 1983 |
| Rusper Court RTM Company Limited | Households | 2012 |
| Russell Partnership Collection Limited | Administrative & support | 2018 |
| Russell Partnership Consultancy Limited | Extraterritorial | 2018 |
| Russell Partnership Technology Limited | Administrative & support | 2018 |
| Russell School Enterprises Limited | Construction | 2015 |
| Russell School International Limited | Education | 2018 |
| Russells International Limited | Education | 2024 |
| Russells Mews Management Company Limited | Households | 2014 |
| Russets Management Company Limited | Households | 1981 |
| Russo Gioacchino Limited | Professional & scientific | 2026 |
| Rustica Pizzeria Limited | Hospitality | 2018 |
| Rustling Stars Ltd | Manufacturing | 2019 |
| Rutland Court Denmark Hill Limited | Households | 1986 |
| Rutland House (Bristol) Limited | Households | 1973 |
| Ruzgar IT Consultancy Ltd | Wholesale & retail | 2019 |
| RVM Foods Ltd | Wholesale & retail | 2019 |
| RWC Builds Ltd | Construction | 2026 |
| Ryan Christy and Co Limited | Real estate | 2022 |
| Ryancon Ltd | Construction | 2024 |
| Ryans Fooduk Limited | Wholesale & retail | 2025 |
| Rybak Digital Limited | Information & communication | 2014 |
| Rydewell Travel Limited | Transport & logistics | 2003 |
| RYE Academics | Education | 2025 |
| Ryefield AM Limited | Professional & scientific | 2014 |
| Ryefield Limited | Professional & scientific | 2009 |
| RYM Consultant Limited | Professional & scientific | 2025 |
| Rymer Construction Ltd | Construction | 2021 |
| Rymer Properties Limited | Households | 1988 |
| Rymexintl Ltd | Professional & scientific | 2024 |
| Rythmia Limited | Health & social care | 2013 |
| Rêverie Designs Ltd | Manufacturing | 2022 |
| S & a Convenience Ltd | Transport & logistics | 2024 |
| S & C Foods Limited | Hospitality | 2013 |
| S & M Convenience Limited | Wholesale & retail | 2019 |
| S & M Infotech Ltd | Information & communication | 2017 |
| S & N Foodmart Ltd | Wholesale & retail | 2007 |
| S & S Halal Butchers Ltd. | Wholesale & retail | 2016 |
| S & S Lifts Ltd | Manufacturing | 2023 |
| S and AB Lets Limited | Real estate | 2025 |
| S and R Rental Ltd | Real estate | 2026 |
| S B Engineeringuk (London) Limited | Manufacturing | 2012 |
| S B Retail Enterprises Limited | Wholesale & retail | 2019 |
| S Class Kitchen CIC | Hospitality | 2025 |
| S G Fashions Limited | Manufacturing | 2011 |
| S J KEW Accountants Limited | Professional & scientific | 2016 |
| S J Software Associates Limited | Information & communication | 2011 |
| S K Sandher Ltd | Health & social care | 2020 |
| S LAX Limited | Professional & scientific | 2015 |
| S M Construction Trade Limited | Construction | 2025 |
| S M Group Trading Limited | Wholesale & retail | 2015 |
| S Medicine Limited | Health & social care | 2016 |
| S Motor Services UK Ltd | Wholesale & retail | 2026 |
| S N K Services (UK) Ltd | Information & communication | 2009 |
| S Nyarko Limited | Information & communication | 2016 |
| S O Okin Ltd | Hospitality | 2023 |
| S P Davey Limited | Transport & logistics | 2002 |
| S Ryan Site Management Limited | Public administration | 2014 |
| S S Food Express Ltd | Wholesale & retail | 2021 |
| S Squared Management Limited | Real estate | 2025 |
| S Turner Property Holdings LLP | | 2017 |
| S Turner Property Ltd | Real estate | 2022 |