| Studio Blue Limited | Information & communication | 2015 |
| Studio Briner Ltd | Professional & scientific | 2017 |
| Studio Dimora Ltd | Professional & scientific | 2025 |
| Studley Holdings Limited | Financial services | 2001 |
| Styal Golf Limited | Arts & recreation | 1993 |
| Styal Investments Limited | Real estate | 2017 |
| Styal Landscape Services Ltd | Administrative & support | 2019 |
| Styal Lodge Limited | Real estate | 2008 |
| Styal Management Consultants Limited | Professional & scientific | 2013 |
| Styal Road Management Company Limited | Households | 2002 |
| Styal Wedding Lodge Limited | Hospitality | 2019 |
| Style by Lauren Ltd | Other services | 2018 |
| Style My Dream Space Limited | Professional & scientific | 2021 |
| Suave Barbers Wilmslow Ltd | Other services | 2026 |
| Subarna Electro Ltd | Wholesale & retail | 2023 |
| Subdust Ltd | Information & communication | 2015 |
| Sublicious Ltd | Hospitality | 2015 |
| Sublimity Ltd | Health & social care | 2023 |
| Subramani Ltd | Real estate | 2019 |
| Suffolk Fresh Ltd | Agriculture & fishing | 2018 |
| Suli Suli Limited | Financial services | 2024 |
| Sumx Search Ltd | Administrative & support | 2024 |
| Suncite Ltd | Construction | 2015 |
| Sunderam Locums Limited | Health & social care | 2016 |
| Sunnova Limited | Professional & scientific | 2025 |
| Sunnydale Limited | Professional & scientific | 2008 |
| Sunnyment Limited | Professional & scientific | 2015 |
| Sunshine Properties 0203 Ltd | Real estate | 2020 |
| Sunshine Visual Effects Limited | Information & communication | 2013 |
| Sunwurx Ltd | Financial services | 2026 |
| Supercars Limited | Wholesale & retail | 2006 |
| Support, Training & Services Limited | Extraterritorial | 1986 |
| Surefoot Solutions Limited | Extraterritorial | 2006 |
| Surestore (Empco) Limited | Real estate | 2022 |
| Surestore Empco 2 Limited | Real estate | 2026 |
| Surestore Storage Limited | Real estate | 2015 |
| Surrey Centre for Dermatology and Immunology Ltd | Health & social care | 2018 |
| Surrey Heating and Boilers Limited | Construction | 2018 |
| Surrey House Residents Association Limited | Real estate | 2017 |
| Surrey Sports Medicine Limited | Health & social care | 2010 |
| Surround Design Ltd | Professional & scientific | 2024 |
| Surus Design Ltd | Professional & scientific | 2016 |
| Sushlok Limited | Health & social care | 2012 |
| Suss-Ed Solutions Ltd | Professional & scientific | 2025 |
| Sustainable Infrastructure Ltd | Administrative & support | 2024 |
| SUZ Cruz North Limited | Information & communication | 2017 |
| Suzy Cooper Limited | Administrative & support | 2013 |
| Sverige Ltd | Wholesale & retail | 2022 |
| SW Career Coaching Limited | Professional & scientific | 2017 |
| SW Time Ltd | Professional & scientific | 2026 |
| Swan Construct Ltd | Water & waste | 2024 |
| Swanrus Limited | Health & social care | 2018 |
| SWC Roofing and Scaffolding Limited | Construction | 2021 |
| Sweaty Bees Ltd | Arts & recreation | 2018 |
| Sweetmans Trading Ltd | Wholesale & retail | 2014 |
| SWF Consulting Ltd | Professional & scientific | 2006 |
| SWF Holdings Limited | Financial services | 2017 |
| Swift Accounting Services Limited | Professional & scientific | 2023 |
| Swift Commissioning Management Limited | Construction | 2012 |
| Swift Edit Ltd | Information & communication | 2018 |
| Swimphony Ltd | Information & communication | 2019 |
| Swindon Electrical Ltd | Energy | 2019 |
| SWITCH4SAVINGS.COM Limited | Professional & scientific | 2025 |
| Sycamore Services Ltd | Other services | 2025 |
| Symi Ltd | Health & social care | 2019 |
| Synapse Consultants Limited | Information & communication | 2009 |
| Syndicates Limited | Financial services | 2009 |
| Syntho App Limited | Education | 2021 |
| SYSTEM5 Limited | Information & communication | 2024 |
| Syyed Medical Ltd | Health & social care | 2025 |
| Szabo-Barnes LLP | | 2024 |
| SZS Healthcare Limited | Wholesale & retail | 2023 |
| T & C Ashworth Ltd | Real estate | 2018 |
| T & M Munchies Ltd | Financial services | 2024 |
| T Best Limited | Information & communication | 2011 |
| T C Holme Practice Limited | Health & social care | 2010 |
| T E Bowling Limited | Health & social care | 2009 |
| T F M I Limited | Real estate | 2007 |
| T J Clark Medical Limited | Health & social care | 2022 |
| T Lowther Holdings Ltd | Financial services | 2024 |
| T Qureshi Dentistry Ltd | Health & social care | 2022 |
| T&Cgroups Limited | Other services | 2023 |
| T4H Support Ltd | Health & social care | 2012 |
| T4NNA Holdings Ltd | Real estate | 2025 |
| TA Health Science Limited | Health & social care | 2014 |
| Tabatha Interiors Limited | Professional & scientific | 2020 |
| Talentdriven Ltd | Administrative & support | 2025 |
| Talia ME 24 Ltd | Wholesale & retail | 2025 |
| Tang Medical Limited | Health & social care | 2014 |
| Tanos Plastic Surgery Ltd | Health & social care | 2026 |
| Tanti Campbell Limited | Financial services | 2013 |
| TAP Rentals Ltd | Real estate | 2019 |
| Tapcardglobal Ltd | Wholesale & retail | 2025 |
| Tapia Consulting Ltd | Professional & scientific | 2021 |
| Tapia Homes Limited | Construction | 2023 |
| Tapia Limited | Real estate | 2020 |
| Taps Direct Limited | Professional & scientific | 1997 |
| Tara GP Ltd | Wholesale & retail | 2020 |
| Targetfigure Limited | Professional & scientific | 2000 |
| Task Technologies Limited | Information & communication | 2015 |