| Sunrise Engineering Ltd | Construction | 2021 |
| Sunrise Haulage Ltd | Transport & logistics | 2024 |
| Sunrise Homes & Properties Ltd | Real estate | 2019 |
| Super Business Ltd | Wholesale & retail | 2025 |
| Super Security Windows &Doors UK Ltd | Construction | 2025 |
| Superlens Limited | Information & communication | 2025 |
| Support for Change Care Services Limited | Health & social care | 2022 |
| Supromax Limited | Construction | 2021 |
| Sure Shop Limited | Wholesale & retail | 2024 |
| Surrey Property Holdings Limited | Real estate | 2015 |
| Survivor Films Ltd | Information & communication | 2009 |
| Sustainable Concepts Consultancy Ltd | Information & communication | 2016 |
| SV Ventures Limited | Real estate | 2026 |
| Sweetfingers Services Ltd | Hospitality | 2018 |
| Swiftserve Courier Ltd | Transport & logistics | 2025 |
| Syed Autos Ltd | Wholesale & retail | 2021 |
| Synthetiq International Ltd | Information & communication | 2026 |
| T C Scenic Limited | Information & communication | 2021 |
| T-Star Build Ltd | Administrative & support | 2025 |
| T. Bull Lighting Limited | Professional & scientific | 2016 |
| T.S 75 Ltd | Professional & scientific | 2015 |
| T4U Limited | Transport & logistics | 2010 |
| Taal Production Ltd | Arts & recreation | 2023 |
| Taam Foods Limited | Wholesale & retail | 2026 |
| Tabfirst Ltd | Hospitality | 2005 |
| Tahs Limited | Transport & logistics | 2016 |
| Talecraft Publishing Ltd | Information & communication | 2025 |
| Talented Portfolio Managers Ltd | Financial services | 2025 |
| Talentsbridge Solutions Ltd | Administrative & support | 2025 |
| TAN Nails Design Limited | Other services | 2026 |
| Tara IT Testing Limited | Information & communication | 2013 |
| Targa Rigging Limited | Professional & scientific | 2021 |
| Tasha's TAN Ltd | Other services | 2022 |
| Task Cleaners Ltd | Administrative & support | 2024 |
| Tate Woodard Limited | Professional & scientific | 2000 |
| Taurus Scenery Limited | Manufacturing | 2019 |
| Tawakkul by Annaiza Ltd | Wholesale & retail | 2024 |
| Tawasul Ltd | Information & communication | 2024 |
| Taylor Hanson Travel Solutions Ltd | Transport & logistics | 2023 |
| Team Master West Drayton Ltd | Other services | 2023 |
| Teams Logistics Ltd | Transport & logistics | 2025 |
| Tech and Vape Solution Ltd | Wholesale & retail | 2025 |
| Tech Geek Solutions Ltd | Professional & scientific | 2020 |
| Techbotic Ltd | Administrative & support | 2017 |
| Technical Welding Limited | Manufacturing | 2020 |
| Technospace Consulting Limited | Information & communication | 2022 |
| Techpro Global Services Ltd | Information & communication | 2024 |
| Techsecure Solutions Ltd | Information & communication | 2023 |
| Techserve IT Solutions Limited | Wholesale & retail | 2025 |
| Techstock Ltd | Wholesale & retail | 2026 |
| Techzone and Services Limited | Wholesale & retail | 2026 |
| Tectiqs Global Ltd | Administrative & support | 2021 |
| Tekrac Limited | Wholesale & retail | 1996 |
| Telcom and IT Ltd | Information & communication | 2014 |
| Tempting Food Delicatessen Ltd | Hospitality | 2023 |
| Tfam Limited | Wholesale & retail | 2024 |
| TFZ West Drayton Ltd | Hospitality | 2025 |
| TGF Unique Limited | Transport & logistics | 2000 |
| Thames Valley and London Developments Ltd | Construction | 2024 |
| Thames Valley Investments Ltd | Real estate | 2020 |
| THE Airports Transfer Ltd | Transport & logistics | 2024 |
| THE AZI Group Limited | Wholesale & retail | 2021 |
| THE Bath Crew Ltd | Construction | 2019 |
| THE Bike Shop (Greenford) Ltd | Wholesale & retail | 2003 |
| THE Cloud District Limited | Information & communication | 2021 |
| THE Cotton London Ltd | Manufacturing | 2016 |
| THE Crown Cowley Ltd | Hospitality | 2025 |
| THE Douglas Inn Limited | Real estate | 2026 |
| THE Ealing Social Ltd | Hospitality | 2019 |
| THE Easy Drop Courier Ltd | Transport & logistics | 2023 |
| THE Eden School Ltd | Education | 2023 |
| THE Everyday Mart Limited | Wholesale & retail | 2025 |
| THE Funky Flower Shop Limited | Wholesale & retail | 2016 |
| THE Global Logistics Group Ltd | Financial services | 2015 |
| THE Kafle Collective Limited | Wholesale & retail | 2025 |
| THE Lavence Group Ltd | Information & communication | 2023 |
| THE Lighthouse Initiative | Education | 2017 |
| THE London Lift Company Limited | Professional & scientific | 2010 |
| THE London Meat Company Holding Limited | Financial services | 2026 |
| THE London Meat Company Limited | Wholesale & retail | 2004 |
| THE Luxe Nude Ltd | Wholesale & retail | 2019 |
| THE Magic Herb Company Ltd | Manufacturing | 2026 |
| THE Masteredge Joinery (UK) Limited | Construction | 2025 |
| THE Meows London Limited | Agriculture & fishing | 2026 |
| THE Pacific Transport Ltd | Transport & logistics | 2024 |
| THE Patrick Group Ltd | Transport & logistics | 2018 |
| THE Pharmaesthetics Clinic Limited | Health & social care | 2021 |
| THE Professional Chauffeur Ltd | Transport & logistics | 2020 |
| THE Punto Group Limited | Wholesale & retail | 2019 |
| THE Redeemed Christian Church of GOD Faith Assembly | Other services | 2023 |
| THE Roaming Stoves Limited | Hospitality | 2023 |
| THE Sanskriti Foundation Ltd | Public administration | 2023 |
| THE Sarnie Shack Ltd | Hospitality | 2026 |
| THE Schools HR Co-Operative Limited | Education | 2012 |
| THE Skill Zone Slough Ltd | Arts & recreation | 2025 |
| THE Thaar Limited | Real estate | 2024 |
| THE Travel House Ltd | Administrative & support | 2017 |
| THE Urban Tasker Limited | Construction | 2023 |
| THE Virtuos Property Investor Limited | Real estate | 2022 |
| THE Waterless Ways Limited | Other services | 2025 |