| Stemmer Imaging Limited | Information & communication | 1997 |
| Steph Lovell Flowers Limited | Wholesale & retail | 2022 |
| Stephanie DEW Law Limited | Professional & scientific | 2026 |
| Stephen Osborne Homes Limited | Professional & scientific | 2009 |
| Steppies Ltd | Wholesale & retail | 2023 |
| Steve COX Golf Professional Limited | Arts & recreation | 2011 |
| Steve Gold Air Conditioning Limited | Construction | 2024 |
| Stevens and Partners Ltd | Financial services | 2022 |
| Stock Print Limited | Manufacturing | 2026 |
| Stockton House Management Company Limited | Households | 1987 |
| Stocton Mews (Guildford) Management Company Limited | Households | 1997 |
| Stoffel UN Limited | Administrative & support | 2019 |
| Stoke Hill Estates Limited | Real estate | 2021 |
| Stomp Fitness Ltd | Arts & recreation | 2021 |
| Stone & Sage Consultancy Ltd | Financial services | 2026 |
| Stone Hall Property Consultants Ltd | Administrative & support | 2014 |
| Stone Hart & Stone Limited | Professional & scientific | 2014 |
| Stone Training Limited | Education | 2006 |
| Stone Water Construction Ltd | Construction | 2025 |
| Stone Worx Limited | Construction | 2004 |
| Stonecroft Residents Management Company Limited | Households | 2003 |
| Stonewood & Partners Ltd | Administrative & support | 2019 |
| Stopgap Dance Company | Arts & recreation | 2006 |
| Stories Construction Ltd | Construction | 2025 |
| Stories Homes Limited | Real estate | 2025 |
| Storm Plant Limited | Wholesale & retail | 2009 |
| Stortio Ltd | Information & communication | 2026 |
| Storylineos Limited | Information & communication | 2026 |
| Straker Performance Engineering Ltd | Wholesale & retail | 2018 |
| Strangeness Ltd | Professional & scientific | 2019 |
| Strategic Pause Advisory Ltd | Professional & scientific | 2024 |
| Strategic Tutors Limited | Education | 2023 |
| Strategy First Ltd. | Professional & scientific | 1997 |
| Stratford Water Lane Limited Limited | Transport & logistics | 2025 |
| Strathearn Trading Company Ltd | Wholesale & retail | 2020 |
| Strawberry Sky Limited | Professional & scientific | 2025 |
| Streetsafe Driving School Limited | Education | 2026 |
| Strength Infinity Ltd | Wholesale & retail | 2023 |
| Stride Equine Ltd | Professional & scientific | 2019 |
| Strong Energy Trading Limited | Extraterritorial | 2016 |
| Strudwick Property Services Limited | Real estate | 2002 |
| Stuart and Frances Campbell LLP | | 2003 |
| Stuart Edmondson Limited | Professional & scientific | 2008 |
| Stuart Lochhead Limited | Administrative & support | 2007 |
| Stuart Mitchell & Company Limited | Information & communication | 1996 |
| Stubbings Car Traders Limited | Wholesale & retail | 2025 |
| Stubbings Inns Limited | Hospitality | 2022 |
| Stubbings PUB Group Ltd | Hospitality | 2022 |
| Studio CO2 Limited | Information & communication | 2003 |
| Studio Nine Staging Limited | Professional & scientific | 2026 |
| Studio Tools Limited | Information & communication | 2019 |
| Sublime Design Limited | Information & communication | 2009 |
| Sublime Wireless Ltd | Information & communication | 2016 |
| Sugu London Limited | Financial services | 2025 |
| Summer Isle Holdings Ltd | Real estate | 2025 |
| Summetria Limited | Information & communication | 1994 |
| Summit South Ltd | Construction | 2025 |
| Sumner & Moore Limited | Professional & scientific | 2003 |
| Sumner Court (Farnham) Limited | Households | 1972 |
| Sumz Foods Limited | Hospitality | 2026 |
| Sunbed Studios Limited | Other services | 2013 |
| Sundown Properties Limited | Real estate | 1953 |
| Sungleam Farms UK Limited | Wholesale & retail | 2022 |
| Sunlit Investments Limited | Wholesale & retail | 2019 |
| Sunningdale (Spring Grove) Management Limited | Real estate | 1971 |
| Sunny by SUE Limited | Professional & scientific | 2017 |
| Sunnydale Estates Limited | Administrative & support | 2008 |
| Sunset Meadow Developments Ltd | Construction | 2012 |
| Sunwood Ltd | Real estate | 2016 |
| Supastack Ltd | Information & communication | 2025 |
| Super 10 Restaurants Ltd | Hospitality | 2024 |
| Super 9 Restaurants Limited | Hospitality | 2021 |
| Super Sealants Ltd | Manufacturing | 2026 |
| Supersede Group Ltd | Information & communication | 2025 |
| Superyachtlife Group Ltd | Professional & scientific | 2005 |
| Superyachtlife Ltd | Professional & scientific | 2017 |
| Superyachtstudio Ltd | Professional & scientific | 2005 |
| Superyachtstyle Ltd | Professional & scientific | 2005 |
| Supper Ltd | Hospitality | 2024 |
| Suprb Ltd | Information & communication | 2022 |
| Surbiton Care Homes Limited | Health & social care | 1997 |
| Surftec Ltd | Information & communication | 1999 |
| Surrey & South Decorators Ltd | Construction | 2026 |
| Surrey Acres Ltd | Professional & scientific | 2023 |
| Surrey ALC Limited | Other services | 2013 |
| Surrey and Hampshire Garden Buildings Ltd | Construction | 2020 |
| Surrey Audio Visual Limited | Administrative & support | 2017 |
| Surrey Buildmasters Limited | Construction | 2025 |
| Surrey Community Services Ltd | Wholesale & retail | 2014 |
| Surrey Country Cottages Limited | Hospitality | 2025 |
| Surrey Downs Financial Services Limited | Financial services | 2014 |
| Surrey Downs Mortgage & Wealth Limited | Financial services | 2017 |
| Surrey Fencing Contractors Ltd | Construction | 2025 |
| Surrey Freelance Limited | Administrative & support | 2015 |
| Surrey Geospatial Consulting Limited | Professional & scientific | 2014 |
| Surrey GUN Dog Training Limited | Education | 2023 |
| Surrey Hills Butchers Limited | Wholesale & retail | 2011 |
| Surrey Hills Commercials Ltd | Wholesale & retail | 2021 |
| Surrey Hills Contracting Ltd | Construction | 2025 |
| Surrey Hills Portfolio Limited | Real estate | 2016 |