| Tess Richards Consultancy Ltd | Administrative & support | 2025 |
| Testbourne Limited | Wholesale & retail | 1979 |
| TEX Investments Limited | Real estate | 2005 |
| Tg-Xl. Limited | Professional & scientific | 2017 |
| Tgre Ltd | Real estate | 2021 |
| TGS 4C Offshore Limited | Administrative & support | 2009 |
| TGS Geophysical Company (UK) Limited | Mining & quarrying | 2006 |
| TGS Geophysical Investments Limited | Professional & scientific | 2014 |
| Thairama International Limited | Other services | 1994 |
| Thairama Limited | Hospitality | 1978 |
| Thairama Properties 2 Limited | Real estate | 2006 |
| Thairama Properties Ltd | Real estate | 2005 |
| Thairama Restaurants Ltd | Hospitality | 2003 |
| Thak Properties Ltd | Real estate | 2025 |
| Thames Landscapes Limited | Administrative & support | 2020 |
| Thames Migration Ltd | Administrative & support | 2005 |
| Thames Windows and Doors Limited | Construction | 2017 |
| Thamesworth Baker Street Limited | Financial services | 2023 |
| Thamesworth Limited | Real estate | 2020 |
| Thann Thai Ltd | Hospitality | 2019 |
| That's the Ticket Ltd | Professional & scientific | 2020 |
| THE Akademy Club Limited | Other services | 2019 |
| THE Angel (Longcrendon) Limited | Hospitality | 1997 |
| THE Annex 15 Larden Road Ltd | Real estate | 2022 |
| THE Beehive Inn 2012 Limited | Hospitality | 2012 |
| THE Berkshire PIG Ltd | Hospitality | 2021 |
| THE Binfield Bakery Limited | Manufacturing | 1999 |
| THE Black Fallow Company Ltd | Information & communication | 2024 |
| THE Black LAB Building Company Limited | Construction | 2017 |
| THE Bodymind Centre Limited | Health & social care | 2026 |
| THE Book House (Wandsworth) Management Company Limited | Real estate | 2015 |
| THE Botanical Company Surrey Ltd | Wholesale & retail | 2019 |
| THE Breakfast Van Limited | Hospitality | 2024 |
| THE Business of Business Limited | Professional & scientific | 1990 |
| THE Chaordic Path Ltd. | Wholesale & retail | 2018 |
| THE Cinematographer Limited | Professional & scientific | 1997 |
| THE Co-Sponsorship Agency Ltd | Professional & scientific | 2010 |
| THE Coffee Van Limited | Hospitality | 2018 |
| THE Coffee Van NO 02 Ltd | Hospitality | 2021 |
| THE Coffee Van NO 03 Ltd | Hospitality | 2021 |
| THE Commercial Decking & Cladding Company Ltd | Construction | 2025 |
| THE Compound Club Ltd | Other services | 2014 |
| THE Constellation PR Ltd. | Professional & scientific | 2024 |
| THE Copse Ltd | Real estate | 2025 |
| THE Difference Limited | Other services | 2017 |
| THE Drape Shop Limited | Information & communication | 2012 |
| THE Drum and Monkey (Colwell Bay) Limited | Hospitality | 2011 |
| THE Elephant Room Tattoo Parlour Limited | Other services | 2022 |
| THE Elmgrove RTM Company Ltd | Administrative & support | 2010 |
| THE Exact Worldwide Ltd | Administrative & support | 2021 |
| THE Face Academy Ltd | Education | 2026 |
| THE Face Medic Group Ltd | Health & social care | 2026 |
| THE Fibre Cafe Limited | Information & communication | 2022 |
| THE FIG Boutique Limited | Manufacturing | 2021 |
| THE Finest Horse & Groom Limited | Hospitality | 2023 |
| THE Fire Doors Solutions Company Limited | Construction | 2025 |
| THE First County Trust Limited | Extraterritorial | 1993 |
| THE Fuller CV Limited | Real estate | 2002 |
| THE Furnishing Solution (Weybridge) Ltd | Professional & scientific | 2015 |
| THE Gallops (Esher) Management Company Limited | Households | 2006 |
| THE Garage Shefford Limited | Wholesale & retail | 2016 |
| THE Garden (Marketing & PR) Limited | Other services | 2000 |
| THE Grand Vault Ltd | Wholesale & retail | 2026 |
| THE Great Gurkhas Limited | Hospitality | 2007 |
| THE Great Tour Limited | Arts & recreation | 2024 |
| THE Great Tusker UK Limited | Professional & scientific | 2012 |
| THE Hake Weybridge Ltd | Hospitality | 2026 |
| THE Hall Flats 1-4 Freehold Limited | Real estate | 2023 |
| THE Happiness Code Limited | Other services | 2017 |
| THE Hidden Base Limited | Wholesale & retail | 2019 |
| THE High Pine Close Residents' Association Limited | Other services | 1993 |
| THE Historic Grand Prix Cars Association Limited | Arts & recreation | 2002 |
| THE Homemover Specialist Limited | Administrative & support | 2012 |
| THE Hot House London Ltd | Health & social care | 2024 |
| THE Hotrod Shop Limited | Wholesale & retail | 2014 |
| THE Independent Analyst Ltd | Professional & scientific | 2017 |
| THE Island Management Limited | Real estate | 1999 |
| THE Jankel Group Limited | Professional & scientific | 2001 |
| THE Japan Cask Company Limited | Wholesale & retail | 2024 |
| THE Kenneth & Susan Green Charitable Foundation | Health & social care | 2012 |
| THE Kitchen Shop (Weybridge) Limited | Wholesale & retail | 2011 |
| THE Kiwi Doula Ltd | Health & social care | 2018 |
| THE Lakewood (Wimbledon) Limited | Real estate | 2024 |
| THE Langston (Kingham) Limited | Health & social care | 2018 |
| THE Lemniscate Tree Limited | Financial services | 2017 |
| THE Light Garden Limited | Construction | 2020 |
| THE Light Room Limited | Professional & scientific | 1998 |
| THE Little Parlour Limited | Other services | 2011 |
| THE Locks Common Company Limited | Other services | 2014 |
| THE London BUS Preservation Trust Limited | Transport & logistics | 1972 |
| THE Maas Apothecary Limited | Wholesale & retail | 2019 |
| THE Maas Clinic Limited | Health & social care | 2016 |
| THE Magic Shelf Limited | Manufacturing | 2017 |
| THE Management Recruitment Group Holdings Limited | Financial services | 2017 |
| THE Management Recruitment Group Limited | Administrative & support | 2007 |
| THE Maurice Upperton Foundation | Health & social care | 2008 |
| THE Mcguinness House Holdings Ltd | Real estate | 2023 |
| THE Medical Application Consultancy Ltd | Education | 2021 |
| THE Mobile Kitchen Company (UK) Limited | Administrative & support | 2019 |
| THE MOD Guys Limited | Administrative & support | 2025 |