| Rocken Properties Ltd | Real estate | 2026 |
| Rodler Dentlab Ltd | Manufacturing | 2024 |
| Rodys Transport Ltd | Transport & logistics | 2019 |
| Rogera Ltd | Transport & logistics | 2017 |
| Rolling Load UK Ltd | Transport & logistics | 2021 |
| Roman Developments & Investments Limited | Construction | 2026 |
| Roman Road Apartments Limited | Wholesale & retail | 2016 |
| Roni Contractors Ltd | Construction | 2017 |
| Roof Easy Ltd | Construction | 2025 |
| Roofline Exteriors Ltd | Construction | 2025 |
| Rookeries Close 1965 Limited | Extraterritorial | 2014 |
| Room & Rest Ltd | Real estate | 2026 |
| Rootlinks Ltd | Financial services | 2022 |
| Roots and Radiance Network CIC | Education | 2025 |
| Rosa Jose Trading AS Calhau Ltd. | Administrative & support | 2019 |
| Rosca Construction Ltd | Construction | 2020 |
| Rose & Co. Services Ltd | Administrative & support | 2024 |
| Rose Harrison Properties Limited | Real estate | 2026 |
| Rosi Construction Ltd | Construction | 2021 |
| Ross & Co Properties 2 Limited | Real estate | 2025 |
| Ross & Co Properties Ltd | Real estate | 2020 |
| Rossington-Smith Developments Limited | Construction | 2019 |
| Rossoneri Properties Limited | Real estate | 2024 |
| Rowles Services Limited | Wholesale & retail | 2020 |
| Roxie Ayoz Ltd | Professional & scientific | 2020 |
| Royale Glazing Ltd | Construction | 2022 |
| Royuk Security Services Ltd | Administrative & support | 2025 |
| Rpam Consultancy Limited | Information & communication | 2016 |
| RR Halal Food Limited | Wholesale & retail | 2022 |
| RR Kitchen&Bedrooms Ltd | Construction | 2022 |
| RR Pandher Ltd | Administrative & support | 2026 |
| RR Robotics Limited | Construction | 2020 |
| Rrizs Limited | Wholesale & retail | 2007 |
| RS & a Services Ltd | Wholesale & retail | 2025 |
| RS Electrical Engtech Ltd | Manufacturing | 2022 |
| RS Financial & Investment Services Limited | Financial services | 2023 |
| RS Property & Management Services Limited | Real estate | 2023 |
| RS Real Estate Management Ltd | Real estate | 2024 |
| Rsaa Tech Ltd | Wholesale & retail | 2025 |
| Rsph Limited | Health & social care | 2022 |
| RST Logistics Services Limited | Transport & logistics | 2019 |
| RT Constructors Ltd. | Transport & logistics | 2025 |
| RTS - Rapid Transport Solutions Ltd | Transport & logistics | 2015 |
| Rubix Property Investments Limited | Real estate | 2025 |
| Ruby Tech Ltd | Information & communication | 2026 |
| Rudra 23 Solutions Limited | Administrative & support | 2019 |
| Rugs Online Limited | Wholesale & retail | 2014 |
| Runnymede Cars Ltd | Transport & logistics | 2020 |
| Rushton Studios Limited | Wholesale & retail | 2026 |
| Russqkal Ltd | Transport & logistics | 2019 |
| Ruve Solutions Ltd | Information & communication | 2019 |
| Ruvenda Ltd | Health & social care | 2026 |
| RVR Solutions Limited | Information & communication | 2021 |
| Rxrelay Ltd | Transport & logistics | 2026 |
| RZ Cleaning Ltd | Administrative & support | 2026 |
| RZH Services Limited | Manufacturing | 2016 |
| S & a Investor's Ltd | Real estate | 2025 |
| S & B Building Services Ltd | Construction | 2013 |
| S & F Homes International Limited | Construction | 2023 |
| S & H Brothers Limited | Wholesale & retail | 2026 |
| S Carpentry Ltd | Manufacturing | 2018 |
| S P N Electrical Services Ltd | Construction | 2015 |
| S R Sales & Letting Limited | Real estate | 2025 |
| S Rahman & Sons Ltd | Wholesale & retail | 2024 |
| S S Bhardwaj Construction Ltd | Construction | 2025 |
| S S M Property Investments Ltd | Real estate | 2018 |
| S S Sarai Ltd | Wholesale & retail | 2025 |
| S&B Tutoring Ltd | Education | 2026 |
| S&F Signature Properties Ltd | Construction | 2026 |
| S&G Computer Supplies Ltd | Wholesale & retail | 2023 |
| S&K First Limited | Wholesale & retail | 2026 |
| S&M London Construction Ltd | Construction | 2025 |
| S&T Bespoke Celebrations Ltd | Information & communication | 2026 |
| S. Castillo Limited | Wholesale & retail | 2014 |
| S.A.Modern Renovation Ltd | Construction | 2024 |
| S.B. Trading London Ltd | Wholesale & retail | 2013 |
| S.Lonka Consulting Ltd | Financial services | 2024 |
| S.N.Rusu Ltd | Construction | 2021 |
| S29OKTAY Ltd | Other services | 2016 |
| S4KM Ltd | Real estate | 2024 |
| S5 Chauffeurs Ltd | Transport & logistics | 2025 |
| SA Khan Ecommerce Ltd | Wholesale & retail | 2026 |
| SA Recruitment Service Ltd | Administrative & support | 2023 |
| Saad Holdings Limited | Transport & logistics | 2022 |
| Saadwi Info Tech Limited | Information & communication | 2014 |
| Sababa Services Limited | Other services | 2025 |
| Sabariz Consultancy Limited | Professional & scientific | 2011 |
| Sabhu Ltd | Real estate | 2021 |
| Sablda Group Ltd | Transport & logistics | 2025 |
| Sacl Properties Limited | Real estate | 2018 |
| Sada-E-Rehmat Ltd | Administrative & support | 2024 |
| Sadiq & Sons Ltd | Wholesale & retail | 2019 |
| Safe Style Scaffolding Limited | Construction | 2025 |
| Saffron Mortgages and Protection Consultant Ltd | Financial services | 2017 |
| Safia Alexander Investments Limited | Wholesale & retail | 2017 |
| SAG Interiors Group Ltd | Construction | 2025 |
| Sagacious Solutions Ltd | Wholesale & retail | 2009 |
| Sage Bakes Ltd | Wholesale & retail | 2025 |
| Sagoo Enterprise Limited | Wholesale & retail | 2025 |
| Sahar Caring Limited | Health & social care | 2023 |