| S.E. Drainage Limited | Water & waste | 2020 |
| Sanitise My Space Limited | Extraterritorial | 2020 |
| Scotgrove LLP | | 2007 |
| SDK Fire Ltd | Construction | 2024 |
| SDZ Resources Ltd | Administrative & support | 2022 |
| Search Finder Limited | Professional & scientific | 2018 |
| Serviced Office Centres LLP | | 2006 |
| Shodan Accounting Ltd | Administrative & support | 2019 |
| Simmonds Property Group LLP | | 2025 |
| Simon Evans Trading Limited | Administrative & support | 2010 |
| Sjegp Limited | Administrative & support | 2019 |
| Skuddair Holdings Limited | Energy | 2017 |
| Skuddair Ltd. | Energy | 2007 |
| Slade Management Ltd | Construction | 2024 |
| Smart Smoke Control Ltd | Construction | 2023 |
| SMJ Consulting Solutions Ltd | Professional & scientific | 2020 |
| South East Commercial Group Ltd | Financial services | 2021 |
| South East Commercial Kitchens Limited | Professional & scientific | 2016 |
| South Eastern Homes (Property Management) Ltd | Real estate | 2016 |
| South Eastern Plumbers Limited | Other services | 2008 |
| Southeast Fabrication & Welding Specialists Limited | Manufacturing | 2010 |
| Southern Fencing Contractors Limited | Construction | 2006 |
| Specialist Tobacco Guidance Limited | Administrative & support | 2011 |
| Specific Steel Structures Limited | Construction | 2017 |
| Spiral Packs (Holdings) Limited | Extraterritorial | 1996 |
| Spiral Packs (London) Limited | Manufacturing | 1973 |
| Stag Capital Ltd | Financial services | 2023 |
| Starhaven Court Limited | Agriculture & fishing | 2017 |
| Stephan Grant Limited | Administrative & support | 2012 |
| Steve Backley Limited | Arts & recreation | 1997 |
| Sundridge Building Group Limited | Administrative & support | 2007 |
| Superflo Limited | Administrative & support | 2023 |
| Swift Lift Hiab Hire Ltd | Transport & logistics | 2022 |
| Switched Electrical Solutions Ltd | Construction | 2019 |
| Sylon Trading Limited | Financial services | 2022 |
| Sylvan Creative Works Limited | Information & communication | 2011 |
| Sylvan Woods Ltd | Other services | 2023 |
| T.I.L. Plant Hire Limited | Extraterritorial | 2009 |
| Tanya Baker Ltd | Real estate | 2021 |
| Tariffmatch Global Limited | Administrative & support | 2014 |
| Tarka Vets Ltd | Professional & scientific | 2024 |
| Tarli Limited | Administrative & support | 2015 |
| Tebbo Limited | Professional & scientific | 2006 |
| Tech Refrigeration Services Limited | Administrative & support | 2001 |
| THE Elite Coach Ltd | Health & social care | 2019 |
| THE Island Residential Home Limited | Administrative & support | 2014 |
| THE London Cleaning Academy LLP | | 2012 |
| THE Mayne Veterinary Clinic Ltd | Professional & scientific | 2012 |
| THE Metal Dormer Company Limited | Manufacturing | 2026 |
| THE Oak NAG Ltd | Hospitality | 2025 |
| THE Southern Counties East Football League Limited | Arts & recreation | 2019 |
| THE Wells Physiotherapy & Sports Clinic Limited | Professional & scientific | 2000 |
| Tohil Research Limited | Financial services | 2024 |
| Tomkins Holdings Limited | Professional & scientific | 2005 |
| Traditional Hub PUB Company Ltd | Hospitality | 2018 |
| Trancecorp Ltd | Financial services | 2022 |
| TSG London Limited | Wholesale & retail | 2025 |
| TTL Recruit Ltd | Administrative & support | 2023 |
| Tyrie Consultancy Ltd | Information & communication | 2025 |
| U7Q5 Limited | Financial services | 2025 |
| UK Gti's LLP | | 2010 |
| Uk-Gta Ltd | Health & social care | 2005 |
| Uniek Digital Limited | Information & communication | 2026 |
| Vantage AI Consulting Limited | Information & communication | 2025 |
| Vault Management Ltd | Financial services | 2022 |
| Veda Capital Limited | Financial services | 2011 |
| Veloriq Limited | Financial services | 2025 |
| Venture UK Group Limited | Wholesale & retail | 2018 |
| VET Dynamics (UK) Limited | Administrative & support | 2014 |
| View Property Ventures Limited | Construction | 2022 |
| Village Car Care Limited | Wholesale & retail | 2009 |
| Virtus Design & Build Ltd | Professional & scientific | 2018 |
| Viva Getaways Ltd | Real estate | 2024 |
| Viva Magenta Project Limited | Wholesale & retail | 2023 |
| VTM Quality Services Limited | Administrative & support | 2018 |
| W P I Park Homes Limited | Hospitality | 2024 |
| W44 Properties Ltd | Real estate | 2025 |
| Walitt Management Limited | Construction | 2019 |
| Wavecrest Limited | Transport & logistics | 2001 |
| Waveney Valley Vets Limited | Professional & scientific | 2025 |
| WB Strategies Limited | Administrative & support | 2021 |
| WE ARE Packaging Limited | Financial services | 2024 |
| WE Recruit Group Ltd | Administrative & support | 2018 |
| Weald Building Services Limited | Construction | 2013 |
| Whitehall Place Limited | Financial services | 2019 |
| Whitelock Services Ltd | Construction | 2023 |
| Will IT Make the Boat Go Faster? Ltd | Administrative & support | 2012 |
| Winder Property Investments Ltd | Real estate | 2020 |
| Windson Enterprises Limited | Financial services | 2022 |
| Witness First Limited | Education | 2026 |
| WK Electrics Ltd | Construction | 2010 |
| Wolfington Ltd | Professional & scientific | 2025 |
| Wood Lane Investments Limited | Wholesale & retail | 2017 |
| Woodley Property and Investments LLP | | 2024 |
| Wrk-Lab Ltd | Professional & scientific | 2025 |
| Your Online Agency LLP | | 2023 |
| Zams Asset Management Limited | Financial services | 2024 |
| Zussman Bear Partnership Ltd | Real estate | 2002 |