| Sun Computer Solutions Ltd | Other services | 2008 |
| Sun RAY Kitchens and Bedrooms Ltd | Construction | 2019 |
| Sun Roofing Ltd | Construction | 2026 |
| Sunbury Tyres Limited | Wholesale & retail | 2025 |
| Sundeep Motors Limited | Wholesale & retail | 2003 |
| Sunlit Transport Ltd | Transport & logistics | 2017 |
| Sunnah Cats Limited | Wholesale & retail | 2024 |
| Sunny DS DM Ltd | Health & social care | 2025 |
| Sunny Home Improvements Ltd | Construction | 2020 |
| Sunny Life Academy Ltd | Administrative & support | 2025 |
| Sunny Shopfront and Shutters Ltd | Manufacturing | 2015 |
| Sunny's Fried Chicken Ltd | Hospitality | 2025 |
| Sunripe Fresh Ltd | Wholesale & retail | 2022 |
| Sunripe Produce Ltd | Wholesale & retail | 2026 |
| Sunripe Properties Ltd | Real estate | 2023 |
| Sunrise Construction London Ltd | Construction | 2025 |
| Sunrise Distribution UK Ltd | Wholesale & retail | 2018 |
| Sunrise Glazing Ltd | Construction | 2024 |
| Sunrise Properties London Limited | Real estate | 2022 |
| Sunrise Property Investment U.K. Ltd | Administrative & support | 2016 |
| Sunrise Skip Hire Limited | Water & waste | 2014 |
| Sunshine Electric and Fire Alarms Ltd | Construction | 2025 |
| Sunshine Homes London Limited | Real estate | 2019 |
| Sunstar Produce Ltd | Wholesale & retail | 2018 |
| Sunstar U.K. Ltd | Real estate | 2018 |
| Suntan Digital Agency Limited | Professional & scientific | 2022 |
| Sunways Renewable Partners Limited | Construction | 2018 |
| Super Capital Investment Limited | Administrative & support | 2016 |
| Super Cleaning Services Limited | Other services | 2020 |
| Super Magnificent Ltd | Construction | 2017 |
| Super Perfect Food Limited | Hospitality | 2021 |
| Super Quality Food & Wine Limited | Wholesale & retail | 2012 |
| Super Singh Local Ltd | Wholesale & retail | 2015 |
| Super Tech Deals Limited | Wholesale & retail | 2016 |
| Super Value Enterprize Ltd | Wholesale & retail | 2025 |
| Superbluesky Limited | Administrative & support | 2020 |
| Superfast Distribution Ltd | Wholesale & retail | 2023 |
| Superfast Logistics Ltd | Transport & logistics | 2025 |
| Superior Auto Seat Covers Ltd | Wholesale & retail | 2019 |
| Superior Kitchen & Bedrooms Ltd | Construction | 2024 |
| Superpal Properties Ltd | Real estate | 2019 |
| Support Construction Ltd | Construction | 2016 |
| Supported Network Helpline CIC | Public administration | 2022 |
| Supreme Light LLP | | 2020 |
| Supreme Shipping Ltd | Wholesale & retail | 2020 |
| Supreme Sparkle Solutions Limited | Transport & logistics | 2023 |
| Supreme Staff Limited | Administrative & support | 2005 |
| Supreme Transfer Ltd | Transport & logistics | 2023 |
| Suraj 95 UK Ltd | Wholesale & retail | 2024 |
| Surana Professional Services Limited | Information & communication | 2016 |
| Surayait Solutions Limited | Information & communication | 2023 |
| Surchan Bergstein Ltd | Financial services | 2022 |
| Surecareuk Limited | Health & social care | 2025 |
| Surender Transport Ltd | Transport & logistics | 2025 |
| Suresh Kumar Ltd | Construction | 2021 |
| Suresh Sehdev Consultancy Limited | Education | 2024 |
| Suretha Ltd | Wholesale & retail | 2019 |
| Surface Construction Limited | Construction | 2024 |
| Surge Capital Limited | Administrative & support | 2013 |
| Suriiyen Limited | Extraterritorial | 2014 |
| Surinder Autos & Motors Ltd | Manufacturing | 2006 |
| Surinder Builders Limited | Construction | 2026 |
| Suriya Beauty Ltd | Other services | 2024 |
| Suriya Solutions Ltd | Professional & scientific | 2015 |
| Surjit Logistics Ltd | Transport & logistics | 2025 |
| Suroor Limited | Wholesale & retail | 2026 |
| Surpass Retail Ltd | Wholesale & retail | 2025 |
| Survections Limited | Professional & scientific | 2024 |
| Susegad Goenkar Limited | Administrative & support | 2025 |
| Sushi Prime Ltd | Hospitality | 2020 |
| Sushiro Ltd | Hospitality | 2023 |
| Suvai Fusion Ltd | Hospitality | 2026 |
| Svam Limited | Wholesale & retail | 2025 |
| Svelte Design Ltd | Professional & scientific | 2025 |
| SVJ Investment Ltd | Real estate | 2023 |
| SVJ Real Estate Ltd | Real estate | 2023 |
| SVR Foods Ltd | Hospitality | 2010 |
| Swag Entertainment UK Limited | Arts & recreation | 2016 |
| Swagaat Ltd | Wholesale & retail | 2024 |
| Swami Management Limited | Wholesale & retail | 2014 |
| Swansea Cardiff Kabadhi Club Ltd | Arts & recreation | 2014 |
| Swarans Estates Ltd | Real estate | 2025 |
| Swati Gems & Jewellery Intl Ltd | Wholesale & retail | 2018 |
| Swatpropertybuyers Ltd | Real estate | 2026 |
| Sweet Home Properties Ltd | Real estate | 2022 |
| Swift Foods Ltd | Hospitality | 2024 |
| Swift Power Electrical Services Ltd | Construction | 2024 |
| Swift TNT Limited | Transport & logistics | 2026 |
| SWIFTCART1998 Ltd | Wholesale & retail | 2025 |
| Swiftline Cargo and Express Logistics UK Ltd | Transport & logistics | 2025 |
| Swiftline Cargo Ltd | Transport & logistics | 2024 |
| Syal Estates Ltd | Real estate | 2026 |
| Syed Global Trade Ltd | Wholesale & retail | 2024 |
| Syed Imran ALI Ltd | Administrative & support | 2025 |
| Syed Private Ltd | Administrative & support | 2016 |
| Sylreece Limited | Real estate | 2024 |
| Syscom Distribution Ltd | Wholesale & retail | 2022 |
| SZ Trades Ltd | Transport & logistics | 2025 |
| T & C Management Ltd | Construction | 2016 |
| T & R Partners Ltd | Wholesale & retail | 2023 |