| Stedman Corporate Holdings Limited | Financial services | 2017 |
| Stephen-Richard Takawafari | Extraterritorial | 2022 |
| Stepping STONE4 (SS4) | Other services | 2012 |
| Sterk Tiles Ltd | Construction | 2024 |
| Stoddart Creative Services Ltd | Arts & recreation | 2012 |
| Stuart Cronshaw Lettings Ltd | Real estate | 2016 |
| Stuart Cronshaw Properties Ltd | Real estate | 2016 |
| Stuart Paul Cronshaw Ltd | Extraterritorial | 2022 |
| Studio at Night Ltd | Arts & recreation | 2024 |
| SUM Holdings Limited | Financial services | 2017 |
| Sun Silk Textiles Ltd | Wholesale & retail | 2019 |
| Superpraise Ltd | Professional & scientific | 2016 |
| Susan Fang Ltd. | Wholesale & retail | 2017 |
| T.A.I. Construction Limited | Wholesale & retail | 1988 |
| Takawafari Limited | Extraterritorial | 2022 |
| Taloot PK Ltd | Administrative & support | 2025 |
| Tandoori Place Ltd Ltd | Hospitality | 2024 |
| Teachers' Enterprise in Religious Education | Education | 2006 |
| Teri Louise Turner Ltd | Extraterritorial | 2024 |
| Teri Turner Ltd | Extraterritorial | 2025 |
| Tevia Limited | Real estate | 2020 |
| Tevia Medical and Data Limited | Information & communication | 2024 |
| THE 8000 Group International Ltd | Professional & scientific | 2015 |
| THE Cat & the Honeybee Ltd | Wholesale & retail | 2022 |
| THE Chancery (Shottery) Management Company Limited | Professional & scientific | 2022 |
| THE Chatfield Cattle Company Limited | Wholesale & retail | 2023 |
| THE Darjeeling Pantry Limited | Manufacturing | 2024 |
| THE Dunn Thing Ltd | Real estate | 2019 |
| THE Isledon Community Nursery Trust | Education | 1993 |
| THE IT Help Wall Ltd | Information & communication | 2022 |
| THE KC Network Ltd | Other services | 2026 |
| THE Pallas Gallery Limited | Information & communication | 1989 |
| THE Pilion Trust Ltd | Health & social care | 2007 |
| THE Properties for Reach Limited | Real estate | 2025 |
| Thelmak Limited | Administrative & support | 2026 |
| Tight Lines Tackle Ltd | Wholesale & retail | 2025 |
| Tiny Lungs Ltd | Information & communication | 2019 |
| TLC Care Provider Ltd | Health & social care | 2023 |
| Tndrly Ltd | Information & communication | 2012 |
| Today's News Ltd. | Manufacturing | 2012 |
| Top Tier Transport Ltd | Transport & logistics | 2016 |
| Transatlantic Heraldry Ltd | Arts & recreation | 2019 |
| Transport Design Consultancy Limited | Professional & scientific | 2005 |
| Triton Project Solutions Ltd | Construction | 2020 |
| Tunzo Pals Limited | Wholesale & retail | 2025 |
| Tuppy Family Holdings Limited | Financial services | 2024 |
| Tuppy Investments HQX Limited | Real estate | 2017 |
| Twilight Contemporary Ltd. | Wholesale & retail | 2024 |
| Tyford Electrical Ltd | Construction | 2019 |
| Tyford Holdings Limited | Financial services | 2023 |
| U Graduate Ltd | Education | 2018 |
| U-Turn Training and Coaching Services Community Interest Company | Professional & scientific | 2021 |
| Upper Street Carpet & Flooring Ltd | Administrative & support | 2016 |
| Upper Street Hardware Limited | Wholesale & retail | 2012 |
| Usual Objections Limited | Manufacturing | 2016 |
| Veneziano Ltd | Construction | 2014 |
| Vocal Girls Ltd | Professional & scientific | 2021 |
| Webjiffy Limited | Information & communication | 2012 |
| Welcome Homes (UK) Limited | Real estate | 1999 |
| Wellth International Limited | Other services | 2023 |
| Whitestone Hathaway Ltd | Professional & scientific | 2022 |
| Wilson Jahmayne 0680 Limited | Transport & logistics | 2014 |
| Yamama Jibal Salalah Al-Dhahabiya Trading Ltd | Financial services | 2025 |
| YAS Group Ltd | Real estate | 2018 |
| Yipin B Limited | Hospitality | 2025 |
| Yipin C M Ltd | Hospitality | 2025 |
| Zakthain Limited | Manufacturing | 2025 |