| Sunnydene Lodge Management Limited | Households | 1965 |
| Sunset MM Ltd | Financial services | 2022 |
| Sunshine Builds Group Limited | Financial services | 2019 |
| Sunshine Learning (UK) Limited | Education | 2011 |
| Sunshine the Best Limited | Hospitality | 2023 |
| Supa Estates Limited | Real estate | 2020 |
| Supastruct Limited | Construction | 2012 |
| Super Intelligence LAB Limited | Information & communication | 2025 |
| Super Quality Wine & Food Ltd | Wholesale & retail | 2018 |
| Super Save Distributors Ltd | Wholesale & retail | 2024 |
| Super Sealed Units Limited | Manufacturing | 2007 |
| Super Supplies Ltd | Construction | 2013 |
| Super Toughened Glass Limited | Manufacturing | 1998 |
| Super Toughened Group Ltd | Financial services | 2019 |
| Super Toughened Holdings Ltd | Financial services | 2025 |
| Super.Mkt CIC | Wholesale & retail | 2022 |
| Supercharger Central Holdings Ltd | Financial services | 2024 |
| Supercharger Central Limited | Hospitality | 2024 |
| Supercharger Central Properties Ltd | Real estate | 2024 |
| Supercharger North Holdings Limited | Financial services | 2026 |
| Supercharger North Limited | Hospitality | 2026 |
| Supercharger Restaurants Holdings Ltd | Financial services | 2024 |
| Supercharger Restaurants Limited | Hospitality | 2024 |
| Supercharger Restaurants Properties Ltd | Real estate | 2024 |
| Supercharger South Holdings Ltd | Financial services | 2024 |
| Supercharger South Limited | Hospitality | 2024 |
| Supercharger South Properties Ltd | Real estate | 2024 |
| Superior Courier Ltd | Wholesale & retail | 2023 |
| Superior Service Team Ltd | Transport & logistics | 2022 |
| Supernova Transformation Limited | Professional & scientific | 2019 |
| Supersaver Store Ltd | Wholesale & retail | 2015 |
| Supershine Cleaning Solution Limited | Administrative & support | 2026 |
| Superstar Car Wash Ltd | Other services | 2025 |
| Suppavit Limited | Manufacturing | 2025 |
| Supr Construction Limited | Professional & scientific | 2013 |
| Supramax Holdco Limited | Transport & logistics | 2021 |
| Supreme Facility Management Services Ltd | Real estate | 2025 |
| Supreme Global Outreach Ltd | Other services | 2023 |
| Supreme Hill Limited | Construction | 2020 |
| Supreme ICT Solution (UK) Ltd | Information & communication | 2019 |
| Supreme Projects Contractors Ltd | Construction | 2023 |
| Supreme Treat UK Ltd | Wholesale & retail | 2024 |
| Supreme UK Express PVT Ltd | Transport & logistics | 2025 |
| SUR Food Ltd | Manufacturing | 2026 |
| Suraj Sweet Mart Limited | Hospitality | 2005 |
| Surajsnow Ltd | Construction | 2003 |
| Sure Johnson Medical Ltd | Wholesale & retail | 2025 |
| Surge - Construction Limited | Construction | 2001 |
| Surge - Developments Limited | Construction | 2006 |
| Surge - Estates Fifth Way Limited | Construction | 2025 |
| Surge - Estates High Road Limited | Construction | 2015 |
| Surge - Estates Second Way Limited | Construction | 2019 |
| Surge - Estates Tower Road Freehold Limited | Extraterritorial | 2013 |
| Surge - Estates Tower Road Limited | Real estate | 2015 |
| Surghealthnotts Ltd | Health & social care | 2021 |
| Surgix Instruments Ltd | Manufacturing | 2026 |
| Surjx Limited | Information & communication | 2025 |
| Sursom Properties Limited | Real estate | 2018 |
| Suru Holdings Limited | Real estate | 2016 |
| Suryakumar and Co Limited | Professional & scientific | 2019 |
| Suscito Ltd | Education | 2021 |
| Susegad Cafe Ltd | Hospitality | 2023 |
| Susegad Goan Ltd | Hospitality | 2026 |
| Sushi Union Ltd | Hospitality | 2020 |
| Sustainable Construction Group Ltd | Construction | 2021 |
| Sustaine Pack Ltd | Wholesale & retail | 2025 |
| Sustaingrid Ltd | Transport & logistics | 2019 |
| Suva Griha Ltd | Real estate | 2023 |
| SV Cleaning Ltd | Administrative & support | 2023 |
| SV Signature Limited | Professional & scientific | 2026 |
| SV Trade Ltd | Wholesale & retail | 2015 |
| Svabhi Properties Limited | Real estate | 2023 |
| Svarnaya Properties Ltd | Real estate | 2025 |
| Svjv Properties Ltd | Real estate | 2017 |
| SVK Expo & Services Ltd | Administrative & support | 2025 |
| SVM Care Limited | Administrative & support | 2020 |
| SVM Group Ltd | Real estate | 2018 |
| Svoniak Trade Ltd | Wholesale & retail | 2025 |
| SVP Construction Ltd | Construction | 2024 |
| SVS Logistics Limited | Administrative & support | 2016 |
| SVS Retail Ltd | Wholesale & retail | 2017 |
| SVT Holdings Ltd | Households | 2025 |
| SW Wardrobe Ltd | Manufacturing | 2017 |
| SW1 Security and Fire Group Ltd. | Administrative & support | 2016 |
| Swadesi Trading Ltd | Wholesale & retail | 2024 |
| Swagat Food PVT Ltd | Hospitality | 2022 |
| Swagat Limited | Hospitality | 2004 |
| Swami Properties Limited | Real estate | 2017 |
| Swan Water Services Ltd | Administrative & support | 2017 |
| Swan Yard Developments Ltd | Construction | 2010 |
| Swanston Capital Limited | Education | 2019 |
| Swasthaveda Limited | Health & social care | 2012 |
| Swastik Logistics Limited | Transport & logistics | 2026 |
| Swastik Services Limited | Real estate | 2017 |
| Sweet Science Amateur Boxing Club CIC | Other services | 2025 |
| Sweet Treat Watford Ltd | Hospitality | 2017 |
| Sweeta Unique Collection Ltd | Wholesale & retail | 2026 |
| Swift Cart ALI Ltd | Wholesale & retail | 2025 |
| Swift Choice Ltd | Administrative & support | 2018 |
| Swift Damp Solutions Limited | Extraterritorial | 2026 |