| Stellef Limited | Professional & scientific | 2018 |
| Sterling Vans Limited | Wholesale & retail | 2026 |
| Steve Davies Properties Limited | Real estate | 2020 |
| Steve Penk Media Ltd | Information & communication | 2015 |
| Steven Cook Ltd | Construction | 2015 |
| Stickfight Limited | Information & communication | 2023 |
| Stoic Networks Ltd | Information & communication | 2009 |
| Stonecross Projects Limited | Construction | 2024 |
| Stonegate Garden Solutions Ltd | Administrative & support | 2026 |
| Stonehaven Developments Ltd | Construction | 2026 |
| Stores for Paws Limited | Wholesale & retail | 2025 |
| Stormfs Ltd. | Other services | 2009 |
| Stride Clothing Limited | Wholesale & retail | 2025 |
| Strongstart Ltd | Construction | 2025 |
| Strontium Ninety Ltd | Information & communication | 2018 |
| Studio 306 Ltd | Professional & scientific | 2021 |
| Studio Optics Limited | Health & social care | 2006 |
| Studio Reach (Architecture/Design) Ltd | Professional & scientific | 2018 |
| Studio Shone Ltd | Professional & scientific | 2019 |
| Styles Hair Studio Limited | Other services | 2000 |
| Sugar W Limited | Real estate | 2022 |
| Suite Wishes Ltd | Real estate | 2022 |
| Sujendra Limited | Real estate | 2023 |
| Sultana Holdings Ltd | Financial services | 2025 |
| SUM Total Limited | Professional & scientific | 2002 |
| Sun Engineering Consultants Limited | Professional & scientific | 2024 |
| Sun River Developments Limited | Real estate | 2021 |
| Sun Studio Ltd | Other services | 2019 |
| Superhounds Ltd | Professional & scientific | 2018 |
| Surrey and Kent Golf Services Limited | Administrative & support | 2025 |
| Surrey Choices Ltd | Health & social care | 2014 |
| Surrey Circus Centre Ltd | Education | 2026 |
| Surrey Developments (Walton) Ltd | Construction | 2019 |
| Surrey Dog Feeds Ltd | Wholesale & retail | 2021 |
| Surrey Dog School & Day Care Ltd | Other services | 2023 |
| Surrey EYE Health Limited | Health & social care | 2019 |
| Surrey Hair Studio Ltd | Other services | 2020 |
| Surrey MOT & Service Centre Limited | Wholesale & retail | 2014 |
| Surrey Property DEA Ltd | Real estate | 2022 |
| Surrey Renovation Services Ltd | Construction | 2026 |
| Surrey Tree Specialist Ltd | Agriculture & fishing | 2020 |
| Sushi Wakyo Walton Ltd | Hospitality | 2022 |
| Sustainaski Ltd | Extraterritorial | 2025 |
| Suyo Hairdressing Limited | Other services | 2014 |
| Suyo Holdings Limited | Other services | 2010 |
| SVA Consultancy Ltd | Administrative & support | 2025 |
| SW Handyman Limited | Construction | 2019 |
| SW Projects London Ltd | Construction | 2024 |
| SW3 Green Energy Services Ltd | Professional & scientific | 2022 |
| SW6 Studios Limited | Information & communication | 2019 |
| Swhit Limited | Information & communication | 2024 |
| SXM Holdings Limited | Financial services | 2021 |
| Synergy Coaching & Education Ltd | Education | 2022 |
| T J C Projects Ltd | Construction | 2021 |
| T N Design & Build Ltd | Construction | 2013 |
| T&Y Fair Trade Coffee Ltd | Hospitality | 2021 |
| T.E.B. Electrical Ltd | Construction | 2021 |
| Tad's Builders Ltd | Construction | 2021 |
| Tailored-Events Ltd | Administrative & support | 2019 |
| Talisgrove Limited | Information & communication | 1995 |
| Talking Voice Ltd | Professional & scientific | 2007 |
| Tapply Ltd | Information & communication | 2012 |
| TAR Free Concept Company Limited | Wholesale & retail | 2014 |
| Tassinari Consulting Limited | Information & communication | 2018 |
| Tavira Asset Management Limited | Professional & scientific | 2009 |
| Tax Synergy Limited | Professional & scientific | 2017 |
| Taxiversum Ltd | Transport & logistics | 2022 |
| Taylor Mills Ltd | Health & social care | 2017 |
| Taylor With Kingston Limited | Administrative & support | 2017 |
| Taylor-Ashworth Design Ltd | Professional & scientific | 2019 |
| TCS1 Property Limited | Real estate | 2015 |
| TD Precision Build Ltd | Construction | 2011 |
| TD Precision Developments Ltd | Construction | 2025 |
| Teach Them Young CIC | Education | 2025 |
| Teaki Ltd | Administrative & support | 2019 |
| Teal.Ai Limited | Information & communication | 2025 |
| Team Table Ltd | Administrative & support | 2026 |
| Teamwork Professionals Limited | Professional & scientific | 1987 |
| Technical Electrical Division Limited | Professional & scientific | 2024 |
| Technology Global Ltd | Information & communication | 2021 |
| Techtonic Services Limited | Information & communication | 2023 |
| Tectum Engineering Ltd | Professional & scientific | 2015 |
| Tegla Limited | Construction | 2016 |
| Teledome Limited | Real estate | 2002 |
| Telostransformation Ltd | Professional & scientific | 2024 |
| Temple of the Healing Arts Ltd | Health & social care | 2025 |
| Tempo-Phoenix Ltd | Wholesale & retail | 2024 |
| TEN Design Studio Limited | Administrative & support | 2007 |
| Teodorita Consulting & Design Ltd | Professional & scientific | 2021 |
| Terrace Tandoori Limited | Hospitality | 2020 |
| Tertius Ltd | Administrative & support | 2023 |
| Tessa Property Ltd | Real estate | 2014 |
| Thakar Ltd | Wholesale & retail | 2018 |
| Thames Fencing & Paving Limited | Construction | 2010 |
| Thames Scaffolding Group Ltd | Construction | 2022 |
| Thamesview Preschool and Nursery Limited | Education | 2024 |
| THE Bethel of Love Limited | Real estate | 2023 |
| THE Brand Support Limited | Information & communication | 2014 |
| THE Breathe Cleaning Company Ltd | Administrative & support | 2011 |
| THE Bristle Brush Company London Ltd | Manufacturing | 2019 |