| Stuart Charles Lettings Ltd | Real estate | 2023 |
| Stuart Cottrell Design Ltd | Professional & scientific | 2022 |
| Stuart Watts Residential Limited | Real estate | 2021 |
| Student Living UK Ltd | Real estate | 2009 |
| Studio Context Limited | Professional & scientific | 2022 |
| Studio Eleven Holdings Ltd | Financial services | 2025 |
| Studio Eleven Management LLP | | 2026 |
| Studio Eleven Media Ltd | Information & communication | 2022 |
| Studio Flooring Limited | Construction | 2022 |
| Studio Forty SIX Ltd | Professional & scientific | 2020 |
| Studio Goldborn Limited | Information & communication | 2025 |
| Studman Mortgage Solutions Ltd | Financial services | 2025 |
| Study Link Education UK Ltd | Education | 2024 |
| Studywest Ltd | Education | 2022 |
| Styles Creative Ltd | Information & communication | 2008 |
| Stylespace Limited | Real estate | 1996 |
| Suarez-Mash Property Investments Ltd | Real estate | 2023 |
| Suavis Real Estate & Construction Ltd | Construction | 2022 |
| Subaru (UK) Limited | Wholesale & retail | 1977 |
| Subject Masters Limited | Extraterritorial | 2016 |
| Subject Masters Tuition Limited | Education | 2016 |
| Sublime Oven & Carpet Cleaning Ltd | Administrative & support | 2020 |
| Subs Logistics Limited | Construction | 2023 |
| Subsidence Surveying Services Ltd | Other services | 2019 |
| Subway World Ltd | Education | 2015 |
| Success Fuel for Business Ltd | Information & communication | 2013 |
| SUE Higgins Ltd | Professional & scientific | 2018 |
| Sugar Acquisition Limited | Financial services | 2006 |
| Sugar Doodles Ltd | Wholesale & retail | 2024 |
| Sugarbrook Limited | Real estate | 2014 |
| Sugarbrows Ltd | Other services | 2020 |
| Sugarlicious Ltd | Wholesale & retail | 2020 |
| Sugarlush Desserts Limited | Hospitality | 2025 |
| Sujipal Ltd | Wholesale & retail | 2025 |
| Sujyot Limited | Professional & scientific | 2025 |
| Suka Group Limited | Manufacturing | 2017 |
| Suka Wholesale LLP | | 2006 |
| Sulis Consulting Limited | Information & communication | 2018 |
| Sumer Solstice Ltd | Real estate | 2023 |
| Summer Lane (Banwell) Limited | Construction | 2023 |
| Summer UK Education Ltd | Education | 2024 |
| Summerhill Shanklin Limited | Real estate | 2019 |
| Summers Halal Poultry Limited | Extraterritorial | 1996 |
| Summers Holdings Limited | Agriculture & fishing | 1997 |
| Summit Achievements Ltd | Administrative & support | 2022 |
| Summit Engineering (Birmingham) Limited | Manufacturing | 2003 |
| Summit Holdings Limited | Professional & scientific | 2003 |
| Summr Ltd | Wholesale & retail | 2020 |
| Sunbeach Holiday Estate Limited | Extraterritorial | 1963 |
| Sunday Service MCR Ltd | Arts & recreation | 2025 |
| Sundays Salons Ltd | Other services | 2023 |
| Sunderland Forge Services Limited | Professional & scientific | 1910 |
| Sunflower Sun Limited | Health & social care | 2019 |
| Sunhaven Homes Ltd | Real estate | 2024 |
| Sunlec Group Ltd | Construction | 2015 |
| Sunlec International Ltd | Construction | 2006 |
| Sunn Properties Limited | Real estate | 2013 |
| Sunner Properties Limited | Real estate | 1982 |
| Sunner Retail Limited | Wholesale & retail | 2010 |
| Sunny Mount (Knowle) | Health & social care | 1997 |
| Sunnyside Developments Limited | Information & communication | 2014 |
| Sunrise Lettings Ltd | Real estate | 2022 |
| Sunset Beach Resort 1 LLP | | 2008 |
| Sunset Beach Resort 10 LLP | | 2008 |
| Sunset Beach Resort 11 LLP | | 2009 |
| Sunset Beach Resort 12 LLP | | 2009 |
| Sunset Beach Resort 13 LLP | | 2009 |
| Sunset Beach Resort 14 LLP | | 2009 |
| Sunset Beach Resort 15 LLP | | 2009 |
| Sunset Beach Resort 16 LLP | | 2009 |
| Sunset Beach Resort 2 LLP | | 2008 |
| Sunset Beach Resort 3 LLP | | 2008 |
| Sunset Beach Resort 4 LLP | | 2008 |
| Sunset Beach Resort 5 LLP | | 2008 |
| Sunset Beach Resort 6 LLP | | 2008 |
| Sunset Beach Resort 7 LLP | | 2008 |
| Sunset Beach Resort 8 LLP | | 2008 |
| Sunset Beach Resort 9 LLP | | 2008 |
| Supafoot Birmingham Ltd. | Health & social care | 2011 |
| Super Cyber Services Limited | Professional & scientific | 2023 |
| Super Duper Comics Ltd | Wholesale & retail | 2020 |
| Super Duper Records Ltd | Wholesale & retail | 2019 |
| Super SEN CIC | Other services | 2024 |
| Super Simple Training Ltd | Professional & scientific | 2016 |
| Super Sports Camps Ltd | Health & social care | 2016 |
| Super UMI Ltd | Wholesale & retail | 2024 |
| Superb Stays Ltd | Hospitality | 2024 |
| Supercar Broker Limited | Wholesale & retail | 2014 |
| Superclean Solutions Ltd | Administrative & support | 2025 |
| Superlegal Limited | Administrative & support | 1998 |
| Supervision in School Limited | Education | 2023 |
| Support for Send Ltd | Education | 2024 |
| Supreme Auto Tech Ltd | Wholesale & retail | 2017 |
| Supreme Care 365 Ltd | Health & social care | 2024 |
| Supreme Financial Solutions Ltd | Financial services | 2021 |
| Suraksha Experts Ltd | Health & social care | 2024 |
| Suren Capital Ltd | Professional & scientific | 2016 |
| Sureplus Solutions Limited | Professional & scientific | 2025 |
| Surgery for YOU Limited | Health & social care | 2015 |
| Surgery Ltd | Health & social care | 2026 |