| Scosa Limited | Health & social care | 2001 |
| Se.Rcn Ltd | Health & social care | 2023 |
| Seahorse Properties Limited | Real estate | 2007 |
| Seau Studio Ltd | Wholesale & retail | 2023 |
| Security Equipment Direct Ltd | Administrative & support | 2020 |
| Security Products Direct Ltd | Administrative & support | 2020 |
| Sefa Brothers Builders Ltd | Construction | 2015 |
| Selsdon Windows Limited | Administrative & support | 2001 |
| SFX Design Ltd | Information & communication | 2019 |
| Sgservices Ltd. | Construction | 2026 |
| Shack Arts Ltd | Administrative & support | 2020 |
| Shandwell Limited | Professional & scientific | 2009 |
| Sharma Cardiology Solutions Ltd | Health & social care | 2007 |
| Sharon Gilshenan Ltd | Other services | 2024 |
| Sharper Edge Communications Ltd | Professional & scientific | 2008 |
| Shelvers Cleaning Limited | Other services | 2023 |
| Shelvers News Limited | Other services | 2016 |
| Shufan Media Limited | Professional & scientific | 2023 |
| Sigma Financial Care Ltd | Professional & scientific | 2022 |
| Signature Walls & Stucco Ltd | Professional & scientific | 2021 |
| Significant Experiences Ltd | Administrative & support | 2025 |
| Silk Life Ltd | Wholesale & retail | 2017 |
| Silver Fern Contractors Ltd | Other services | 2017 |
| Silver Visor Limited | Real estate | 2022 |
| Silverside Digital Limited | Professional & scientific | 2025 |
| Simhadri Consulting Ltd | Information & communication | 2019 |
| Simon Jones Associates Limited | Professional & scientific | 2002 |
| Simucall Limited | Information & communication | 2019 |
| Sithvi Ltd | Wholesale & retail | 2026 |
| Sivi Properties Ltd | Real estate | 2020 |
| Sivotar Ltd | Information & communication | 2009 |
| Sixth Impact Limited | Professional & scientific | 2019 |
| SJA Rentals Limited | Real estate | 2015 |
| Slatestone Limited | Financial services | 1985 |
| Soapbox Limited | Arts & recreation | 1985 |
| Software Medical Devices Limited | Professional & scientific | 2020 |
| Soltigus Limited | Energy | 2023 |
| SOMAIAH22 Ltd | Health & social care | 2025 |
| Sophei Limited | Extraterritorial | 2020 |
| Sound Leadership Ltd | Arts & recreation | 2025 |
| Southern Provincial Limited | Real estate | 1995 |
| Southlake Management Ltd | Real estate | 2023 |
| Spear Point Limited | Administrative & support | 2014 |
| Specialist Care Homes Limited | Construction | 2016 |
| Specialist Pools Services Limited | Administrative & support | 2016 |
| Spectrum Interventional Radiology Ltd | Health & social care | 2024 |
| Spotless Group Services Ltd | Construction | 2018 |
| SRI SAI Nijay Services Limited | Professional & scientific | 2025 |
| Standstart Limited | Professional & scientific | 1988 |
| Stanstead Manor Lessees Limited | Households | 1964 |
| Star Locum Limited | Professional & scientific | 2007 |
| Steadyhaven Home Care Ltd | Extraterritorial | 2025 |
| Stealth Communications Limited | Wholesale & retail | 1997 |
| Sterling Newbury Management Company Limited | Real estate | 2021 |
| Stonecore Ltd | Manufacturing | 2025 |
| Stopford Mccoll Ltd | Arts & recreation | 2012 |
| Storyporting Ltd | Professional & scientific | 2024 |
| Stratenergies Limited | Other services | 2023 |
| Strawbry Temp FDN Ltd | Health & social care | 2025 |
| Stredwin Ltd | Construction | 2006 |
| Strive Together Ltd | Administrative & support | 2026 |
| STS SAI UK Ltd | Wholesale & retail | 2019 |
| Subask Ltd | Wholesale & retail | 2024 |
| Such Stuff Speech and Drama Ltd | Education | 2026 |
| Sugar and Spice 15 Limited | Hospitality | 2017 |
| Sundown Services Limited | Professional & scientific | 2025 |
| Sunley (College Court) Residents Limited | Households | 1983 |
| Surreal Consulting Ltd | Professional & scientific | 2023 |
| Surrey GAS & Electric Ltd | Construction | 2009 |
| Surrey Highlands Ltd | Real estate | 2004 |
| Surrey Housing Developments Ltd | Real estate | 2018 |
| Surrey Recovery Commercials Ltd | Wholesale & retail | 2024 |
| Surrey Signature Estates Ltd | Real estate | 2026 |
| Surrey Speed Shop Ltd | Wholesale & retail | 2025 |
| Surrounded by Stone Ltd | Construction | 2018 |
| Surveying and Drawing Office Services Ltd | Professional & scientific | 2017 |
| Sustainable Consulting Ltd | Construction | 2022 |
| Swift Crafted Holdings Limited | Financial services | 2009 |
| Swift Crafted Limited | Construction | 1987 |
| Swimwise Limited | Arts & recreation | 2011 |
| Swkb Services Limited | Administrative & support | 2015 |
| T G Property Investments Ltd | Real estate | 2015 |
| T L S Consulting Limited | Information & communication | 2007 |
| Tadworth Autos Limited | Wholesale & retail | 2018 |
| Tadworth Mobile Tyre Fitting Ltd | Wholesale & retail | 2025 |
| Tadworth Park Woodlands Limited | Households | 1987 |
| Tadworth Place Management Company Limited | Households | 2007 |
| Tadworth Systems Limited | Real estate | 1995 |
| Tadworth Thai Ltd | Hospitality | 2019 |
| Tadworth Tyre Specialists Limited | Wholesale & retail | 1971 |
| Tailfeatherdance CIC | Other services | 2021 |
| Taipan Consulting Limited | Professional & scientific | 2015 |
| Targafen Limited | Professional & scientific | 1983 |
| Tarrae Entertainment Ltd | Arts & recreation | 2025 |
| Tattenham Cornerways Limited | Hospitality | 2008 |
| TBC Rose Limited | Households | 2022 |
| TBL Tech Ltd | Information & communication | 2026 |
| TC Security Services Limited | Administrative & support | 1998 |
| TC Surrey Construction Limited | Construction | 2010 |
| Techfalcon Ltd | Real estate | 2025 |