| Spiderlift Ltd | Construction | 2021 |
| Spinnaker Red Limited | Information & communication | 2011 |
| Spiral Systems Limited | Professional & scientific | 1993 |
| Spirit Hair & Beauty Limited | Other services | 2017 |
| Spirit of Peace | Education | 2007 |
| Spiritual Quest Limited | Wholesale & retail | 2011 |
| Spitfire Products Ltd | Wholesale & retail | 2023 |
| SPK Tech Ltd | Manufacturing | 2017 |
| Splendido Limited | Professional & scientific | 2004 |
| Splidge & Splodge Ltd | Wholesale & retail | 2025 |
| Splish N Splash Limited | Education | 2011 |
| Sport Psychology Limited | Professional & scientific | 2000 |
| Sports Media Holdings Ltd | Extraterritorial | 2016 |
| Spotless Solutions Surrey Ltd | Administrative & support | 2024 |
| Sprindler Limited | Financial services | 2026 |
| Spring Forth Consulting Limited | Professional & scientific | 2007 |
| Spring Medical Services Ltd | Health & social care | 2007 |
| Springburn Limited | Real estate | 1965 |
| Springtide Capital Limited | Financial services | 1987 |
| Springup Ltd | Administrative & support | 2016 |
| Springvale Mews Management Company Limited | Households | 2002 |
| Springwell Consultancy Ltd | Health & social care | 2023 |
| Spruce & Larch Limited | Hospitality | 2021 |
| Square EYE Projects Ltd | Information & communication | 2026 |
| Squaredmc Ltd | Manufacturing | 2025 |
| Squat YOU Doing Shazza Limited | Households | 2020 |
| SR Executive Ltd | Transport & logistics | 2025 |
| SRA Fall Protection Ltd | Construction | 2026 |
| SRA Roofing Solutions Ltd | Construction | 2025 |
| Srcsoft Ltd | Information & communication | 2019 |
| SRI Adishakthi Investments Limited | Financial services | 2025 |
| SRI Kitchen UK Ltd | Hospitality | 2017 |
| SRI Shyam Consulting Ltd | Health & social care | 2025 |
| Srjuk Maintenance Services Ltd | Construction | 2022 |
| Srmik Limited | Wholesale & retail | 2026 |
| Srujay Limited | Real estate | 2020 |
| SRW Limited | Professional & scientific | 2017 |
| SS & Co Consultancy Limited | Administrative & support | 2011 |
| SS Property World Ltd | Real estate | 2026 |
| SSD Logistics Limited | Transport & logistics | 2020 |
| SSH Beauty Ltd | Other services | 2025 |
| Ssjr Consulting Ltd | Information & communication | 2013 |
| ST Catherine's Square Management Company Limited | Households | 2010 |
| ST George's Place (Esher) Management Company Limited | Households | 2012 |
| ST Giles Close Management Limited | Households | 2021 |
| ST James Close Epsom Management Company Limited | Households | 2007 |
| ST Margarets Properties Limited | Real estate | 2019 |
| ST Mary's Mount Management Limited | Real estate | 1997 |
| ST Splashbacks Ltd | Manufacturing | 2023 |
| ST. Andrews Gardens Residents Association Limited | Households | 1996 |
| ST. Martins-Le-Grand Estates Limited | Real estate | 1990 |
| St.Dominics Residents' Association Limited | Households | 1970 |
| Stage and Event Lighting Limited | Arts & recreation | 2011 |
| Stagwood Homes Limited | Construction | 2014 |
| Stak Properties Limited | Construction | 2004 |
| Stamford House Management Limited | Households | 1975 |
| Stanaker Limited | Information & communication | 2010 |
| Stand Tall Media Ltd | Information & communication | 2022 |
| Standard Distributions (Periodicals) Limited | Wholesale & retail | 1974 |
| Standard Limited | Wholesale & retail | 1995 |
| Standby Power Systems Limited | Other services | 1995 |
| Standley Holdings Limited | Financial services | 2016 |
| Stanford Acquisitions Ltd | Hospitality | 2023 |
| Stanford Court (Epsom) Residents Company Limited | Households | 1979 |
| Stangate Mansions Ltd | Households | 2015 |
| Stanley Royce + Jones Ltd | Administrative & support | 2019 |
| Stanmore M&E Ltd | Construction | 2025 |
| Stanton Grove Management Company Limited | Households | 2018 |
| Stanton Trading Ltd | Construction | 2003 |
| Star Consultancy and Technologies Limited | Professional & scientific | 2023 |
| Star Floors Limited | Extraterritorial | 2016 |
| Star Girl Global Ltd | Wholesale & retail | 2024 |
| Star Goldreech Investments Limited | Households | 2025 |
| Star Pointe Limited | Agriculture & fishing | 1996 |
| Star Signs SSC Ltd | Administrative & support | 2013 |
| Star Spice (Chessington) Ltd | Hospitality | 2026 |
| Star UK Wholesales Ltd | Wholesale & retail | 2024 |
| Starcrest Investments Limited | Construction | 1977 |
| Starr Forged Ltd | Professional & scientific | 2023 |
| Starrain Ltd | Wholesale & retail | 2022 |
| Start UP Services IT Limited | Information & communication | 2021 |
| Startgow Limited | Professional & scientific | 2023 |
| State of Mind Solutions Ltd | Information & communication | 2019 |
| Station Cars Epsom Limited | Transport & logistics | 2015 |
| Station Road Leatherhead Management Ltd | Real estate | 2022 |
| Statue Magazine Ltd | Information & communication | 2023 |
| Status Capital Investments Ltd | Construction | 2021 |
| Steelplan Kitchens Ltd | Manufacturing | 2021 |
| Steelplan Ltd | Manufacturing | 1992 |
| Stem Girls Limited | Education | 2017 |
| Stenhaus Limited | Administrative & support | 2018 |
| Stephanie O'Rourke Limited | Arts & recreation | 2009 |
| Stephen Cullis Bookkeeping & Administration Ltd | Professional & scientific | 2024 |
| Stephen Green Consultancy Ltd | Professional & scientific | 2016 |
| Steps for Trees Limited | Professional & scientific | 2024 |
| Steps to Storage Ltd | Manufacturing | 2022 |
| Stepstone Homes Private Limited | Construction | 2014 |
| Stereolab Limited | Information & communication | 1993 |
| Sterling Principal Finance Limited | Real estate | 2009 |
| Sterling Sian Ltd | Wholesale & retail | 2026 |