| Studio Power Holdings Ltd | Financial services | 2022 |
| Studio Power Ltd | Professional & scientific | 2020 |
| Studio Space Manchester Ltd | Real estate | 2023 |
| Studio Wildlife Limited | Arts & recreation | 2025 |
| Stuintake Solutions Ltd | Hospitality | 2022 |
| Stumark Textiles Limited | Wholesale & retail | 2006 |
| Style Homes MCR Ltd | Real estate | 2025 |
| Styrofoam Games Ltd | Information & communication | 2021 |
| SU Business Consultancy Ltd | Information & communication | 2021 |
| SU Casa Cleaning Ltd | Administrative & support | 2026 |
| Sub-Label Recordings Ltd | Information & communication | 2012 |
| Success 4 Ever Services Ltd | Wholesale & retail | 2009 |
| Success Kensington Limited | Hospitality | 2023 |
| Success Y & B Ltd | Real estate | 2023 |
| SUE Elegance Ltd | Wholesale & retail | 2026 |
| SUGBA05 Ltd | Administrative & support | 2016 |
| Suite & Shine Ltd | Hospitality | 2025 |
| Suite Artists Studio Group Ltd | Arts & recreation | 2004 |
| Suite Serviced Apartments Limited | Real estate | 2018 |
| Suja Driving School Ltd | Education | 2017 |
| Sukain Ltd | Manufacturing | 2021 |
| Suleman SA Ltd | Real estate | 2025 |
| Sulfar Education Limited | Education | 2017 |
| Sullivan Enterprise Ltd | Wholesale & retail | 2025 |
| Sultan Cargo and Logistics Limited | Transport & logistics | 2020 |
| Sultan Investment Holdings Limited | Financial services | 2025 |
| Sultan Legal Limited | Professional & scientific | 2023 |
| Sultan Pizza Grill Ltd | Hospitality | 2025 |
| Sultan's Pizza & Kebab Limited | Manufacturing | 2023 |
| Sumereign Ltd | Information & communication | 2025 |
| Sumino Textile Limited | Wholesale & retail | 2025 |
| Summerfoods Limited | Hospitality | 2026 |
| Summit Accountants Limited | Professional & scientific | 2016 |
| Sunan Group Property Co Limited | Real estate | 2023 |
| Sunbrook Ltd | Real estate | 2026 |
| Sunderland Solutions Limited | Extraterritorial | 2021 |
| Sunderland Timber Estate Limited | Other services | 2019 |
| Sunderland Timber Estate NO.2 Limited | Other services | 2019 |
| Sunlee & Company Limited | Other services | 1995 |
| Sunninghill High 1 Ltd | Professional & scientific | 2025 |
| Sunny Bury Estates Limited | Other services | 2024 |
| Sunny Daycare Ltd | Health & social care | 2024 |
| Sunnyfirst Limited | Hospitality | 2025 |
| Suno Limited | Information & communication | 2016 |
| Sunshine Realty Ltd | Real estate | 2014 |
| Sunshine Supermarket Ltd | Wholesale & retail | 2025 |
| Super Extra 1 Pound Limited | Wholesale & retail | 2024 |
| Super Extra Pound Limited | Wholesale & retail | 2015 |
| Super Nutritions Limited | Wholesale & retail | 2011 |
| Super Properties Limited | Professional & scientific | 2006 |
| Superb Motors Ltd | Wholesale & retail | 2013 |
| Superior Zone Services Limited | Construction | 2014 |
| Supernova Bargains Ltd | Wholesale & retail | 2025 |
| Supersede Media Limited | Information & communication | 2015 |
| Supersonic Creative MCR Limited | Professional & scientific | 2025 |
| Suppa Events Ltd | Hospitality | 2025 |
| Supply Network Ltd | Construction | 2021 |
| Support and Living C.I.C. | Real estate | 2015 |
| Support and Living Group Limited | Construction | 2017 |
| Supported Social Homes Ltd | Other services | 2023 |
| Supported Social Housing Ltd | Financial services | 2024 |
| Supreme Foods Limited | Financial services | 2006 |
| Suranman Limited | Real estate | 2021 |
| Sure Maintenance Ltd | Construction | 2025 |
| Sure Rent Ltd | Real estate | 2026 |
| Suremart Limited | Wholesale & retail | 2024 |
| Sureter Web Ltd | Information & communication | 2022 |
| Surion Legal Services Limited | Professional & scientific | 2022 |
| Surpriseme PTE Ltd | Real estate | 2024 |
| Survival Enterprise Ltd | Wholesale & retail | 2021 |
| Sushi World Bar Ltd | Hospitality | 2013 |
| Susling Limited | Administrative & support | 2024 |
| Sustainable Fashion Creative Hub CIC | Education | 2026 |
| Sustainmove Ltd | Transport & logistics | 2025 |
| Susteneva Chemicals Limited | Wholesale & retail | 2025 |
| Sutherland Park Management Company Limited | Households | 2025 |
| Sutton Harbour Estates Limited | Professional & scientific | 2026 |
| Sutton Securities 2 Limited | Households | 2019 |
| Sutton Securities Limited | Households | 2019 |
| Suvoda Software Ltd | Other services | 2021 |
| Svar Ltd | Information & communication | 2026 |
| SW Online Trading Limited | Wholesale & retail | 2024 |
| Swallow Assets Ltd | Real estate | 2023 |
| Swalwell Estates (2) Limited | Extraterritorial | 2025 |
| Swalwell Estates Limited | Extraterritorial | 2025 |
| Swar Sciences Limited | Other services | 2019 |
| Swarm Collective Ltd | Wholesale & retail | 2025 |
| Swcss Ltd | Professional & scientific | 2026 |
| Sweet Sense Desserts Limited | Hospitality | 2024 |
| Sweet Treat FIX Ltd | Manufacturing | 2025 |
| Sweetilicious Ltd | Wholesale & retail | 2024 |
| Swiffed Ltd | Administrative & support | 2025 |
| Swift (Nigeria) Limited | Administrative & support | 2002 |
| Swift Engineering (Azerbaijan) Limited | Administrative & support | 2002 |
| Swift Healthcare Staffing Services Limited | Administrative & support | 2022 |
| Swift Pack MCR Ltd | Transport & logistics | 2016 |
| Swift Technical (Azerbaijan) Limited | Administrative & support | 2002 |
| Swift Technical (Europe) Limited | Administrative & support | 2003 |
| Swift Technical Group Limited | Administrative & support | 2003 |
| Swift Worldwide Resources Bidco Limited | Administrative & support | 2013 |