| Staffique Solutions Ltd | Administrative & support | 2025 |
| Staffwise Partners Limited | Administrative & support | 2024 |
| Stageeo Ltd | Information & communication | 2024 |
| Staker Wallace Ltd | Real estate | 2014 |
| Stamford & Co Property Ltd | Real estate | 2025 |
| Standard Deviation Ltd | Construction | 2012 |
| Stanley James & Underwood Ltd | Financial services | 2022 |
| Star Awareness Limited | Administrative & support | 2020 |
| Star Point Solutions Limited | Administrative & support | 2012 |
| Star Saloon Ltd | Other services | 2026 |
| Star Storm Sky Properties Ltd | Extraterritorial | 2021 |
| Starlight Dance Centre Limited | Arts & recreation | 1992 |
| Starline Building Services Ltd | Construction | 2025 |
| Starve Supplies Limited | Hospitality | 2023 |
| Station Cars ( Crystal Palace ) Limited | Administrative & support | 2006 |
| Station Cars (CP) Limited | Transport & logistics | 2021 |
| Station Cars (Surbiton) Ltd | Professional & scientific | 2004 |
| Station Cars Limited | Administrative & support | 2010 |
| Station Road (UK) Limited | Extraterritorial | 1945 |
| Stay Curious Group Ltd | Administrative & support | 2025 |
| Stayaway Apartments Ltd | Real estate | 2024 |
| Steel Erecting Services Limited | Construction | 2003 |
| Stef and Hope Ltd | Construction | 2018 |
| Stegar Estates Ltd | Real estate | 2017 |
| Stellar Dragon Ltd | Information & communication | 2014 |
| Stellarco Energy Limited | Professional & scientific | 2026 |
| Stellect Ltd | Wholesale & retail | 2022 |
| Stenley 81 Ltd | Construction | 2020 |
| STEP2 Scaffolding Ltd | Construction | 2019 |
| Steph Global Marketing Ltd | Information & communication | 2023 |
| Stephen Foster Property Ltd | Real estate | 2021 |
| Stepin Healthcare Limited | Administrative & support | 2022 |
| STERI-7 Ltd | Manufacturing | 2005 |
| STERI-7 Shop Ltd | Wholesale & retail | 2021 |
| STERI-7 Worldwide Limited | Manufacturing | 2006 |
| Sterling London Limited | Real estate | 2009 |
| Stirling Plumbing Ltd | Construction | 2026 |
| Stoicism Property Ltd | Real estate | 2024 |
| Stokowski Limited | Information & communication | 2013 |
| Stoneleigh Scaffolding Limited | Construction | 2014 |
| Stos Therapy Centre Limited | Health & social care | 2023 |
| Streamline Aerospace Limited | Financial services | 2021 |
| Streams of Steel Ltd | Manufacturing | 2018 |
| Streatham Drycleaners Ltd | Other services | 2019 |
| Strive Group London Limited | Professional & scientific | 2025 |
| Stroud Services Ltd | Households | 2019 |
| Student Connectuk Ltd | Education | 2026 |
| Students Achieve Cheam Ltd | Education | 2026 |
| Studio Contra Limited | Professional & scientific | 2026 |
| Studio Formless Ltd | Professional & scientific | 2023 |
| Study Immersion Ltd | Administrative & support | 2026 |
| Style My Edge UK Ltd | Wholesale & retail | 2024 |
| Styleit Luxury Ltd | Wholesale & retail | 2023 |
| Styles 4 YOU Ltd | Wholesale & retail | 2018 |
| Subram Software Technologies Limited | Information & communication | 2011 |
| SUITE24 Ltd | Professional & scientific | 2019 |
| Suki Construction Ltd | Construction | 2024 |
| Suksun & Daughter Limited | Real estate | 2022 |
| Sukuk Investments Limited | Real estate | 2023 |
| Sukus Move Limited | Transport & logistics | 2025 |
| Suleman Property Development Ltd | Construction | 2023 |
| Sultananees Ltd | Wholesale & retail | 2021 |
| Sumara Building Ltd | Construction | 2019 |
| Sumara Property Ltd | Real estate | 2026 |
| Summit Sight Ltd | Wholesale & retail | 2024 |
| Summitcrest Group Limited | Wholesale & retail | 2026 |
| Sunny Vale Supplies Ltd | Wholesale & retail | 2020 |
| Sunrise Day Care Services Ltd | Health & social care | 2011 |
| Sunrise Health Ltd | Health & social care | 2025 |
| Sunrise Meat Wholesalers Limited | Wholesale & retail | 2021 |
| Sunrise Support Foundation UK Ltd | Real estate | 2019 |
| Sunrise Surrey Ltd | Administrative & support | 2024 |
| Sunstar Europe Ltd | Professional & scientific | 2006 |
| Sunstar Investments Ltd | Professional & scientific | 2006 |
| Sunstar Supermarkets Ltd | Wholesale & retail | 2006 |
| Suntang International Limited | Financial services | 2015 |
| Suntokee Consultants Limited | Information & communication | 2011 |
| Superior Landscapes Ltd | Administrative & support | 2026 |
| Superior Properties Group Ltd | Real estate | 2020 |
| Superior Steel Ltd | Manufacturing | 2024 |
| Superview Limited | Hospitality | 2020 |
| Supreme Barclay Estates Ltd | Real estate | 2026 |
| Supreme One Limited | Wholesale & retail | 2002 |
| Surbiton Cars Private Ltd | Transport & logistics | 2009 |
| Surbiton Private Hire Limited | Professional & scientific | 2016 |
| Sureflow Services Ltd | Construction | 2008 |
| Surevisa Ltd | Professional & scientific | 2025 |
| Surrey and Hants MSK Collaborative Limited | Health & social care | 2004 |
| Surrey Electrical Contractors Limited | Construction | 2013 |
| Surrey Physio Group Limited | Health & social care | 2017 |
| Surrey Piyasa Ltd | Education | 2025 |
| Surrey Property Investment Ltd | Real estate | 2020 |
| Surrey Transmissions Limited | Administrative & support | 2008 |
| Surrey Waste Management Limited | Water & waste | 2014 |
| Surveytech Ltd. | Construction | 1997 |
| Susan Globe Touch Ltd | Wholesale & retail | 2017 |
| Susash Blackpool Ltd | Administrative & support | 2017 |
| Susash GB Ltd | Health & social care | 2014 |
| Susash London Limited | Health & social care | 2013 |
| Susash Middlesbrough Ltd | Health & social care | 2018 |