| Temple Gate (Two) Dollis Hill Management Company Limited | Households | 1995 |
| Temple House Estates Limited | Extraterritorial | 2005 |
| Temple House Residents Association Limited | Households | 1976 |
| Templefields Multi-Academy Trust | Education | 2017 |
| TEN Roofing Ltd | Construction | 2021 |
| TEN S Consultancy Limited | Professional & scientific | 2023 |
| Tenbury Close (Romford Road) Management Company Limited | Households | 1981 |
| Tencell Limited | Wholesale & retail | 2004 |
| Tenko Specialist Services Ltd. | Construction | 2015 |
| Tennessee Express Harlow Ltd | Hospitality | 2025 |
| Tennison Engineering Limited | Professional & scientific | 2017 |
| Tenshi Blends Limited | Wholesale & retail | 2023 |
| Teor Limited | Manufacturing | 2015 |
| Ternhill Residents Company Limited | Households | 2002 |
| Terpog Ltd | Real estate | 2025 |
| Terramagna Food Limited | Hospitality | 2018 |
| Terry Angell Limited | Information & communication | 2007 |
| Terry James Waste Solutions Ltd | Water & waste | 2021 |
| TES KAY Consulting Ltd | Professional & scientific | 2017 |
| Tesmore Global Resources Limited | Wholesale & retail | 2024 |
| Testable Ltd | Information & communication | 2017 |
| Tetraco Limited | Administrative & support | 2016 |
| Tewin Water Gardens RTM Company Limited | Households | 2022 |
| Tewin Water House Gardens Management Company Limited | Extraterritorial | 2010 |
| Tewin Water House Management Company Limited | Real estate | 2009 |
| Tewin Water House RTM Company Limited | Households | 2017 |
| Tfa&O Limited | Health & social care | 2024 |
| TFS Sales Limited | Wholesale & retail | 2025 |
| TG Builders London Ltd | Construction | 2019 |
| Tgnex Ltd | Wholesale & retail | 2026 |
| THA Throwdown Limited | Information & communication | 2014 |
| Thallo Plants Ltd | Wholesale & retail | 2021 |
| Thames Edge Management Limited | Households | 2001 |
| Thata's Little Finds Ltd | Wholesale & retail | 2026 |
| Thattrainingguy Ltd | Professional & scientific | 2026 |
| THE 1840 ST George's Gardens (Springfield) Management Company Limited | Households | 2021 |
| THE 4FORE Group Limited | Real estate | 2023 |
| THE 7 Heavens Gardens Ltd | Administrative & support | 2026 |
| THE Academy of Speech and Drama Ltd | Arts & recreation | 2020 |
| THE Acorns (Bloxwich) Management Company Limited | Households | 1995 |
| THE Activities People Ltd | Arts & recreation | 2026 |
| THE AI Centre for Harlow CIC | Education | 2026 |
| THE Akinwales Ltd | Real estate | 2022 |
| THE Albion Wrexham Ltd | Real estate | 2021 |
| THE Arnhem Wharf Residential Management Company Limited | Households | 1997 |
| THE Assorted Podcast Limited | Information & communication | 2023 |
| THE Audiobarn Limited | Wholesale & retail | 2014 |
| THE AV Technician Limited | Construction | 2018 |
| THE Avenue, Saffron Walden Management Company Limited | Households | 2012 |
| THE Baking Room Limited | Manufacturing | 2018 |
| THE Barn Nursery Ltd | Health & social care | 2016 |
| THE Basil Collection Ltd | Professional & scientific | 2025 |
| THE Beautiful Struggle Ltd | Public administration | 2023 |
| THE Black Dog Wine Company Limited | Wholesale & retail | 2009 |
| THE Bootcamp GUY Ltd | Education | 2025 |
| THE Brasserie (at the Chequers) Limited | Hospitality | 2024 |
| THE Bright Connections (Contact Centre) Ltd | Public administration | 2022 |
| THE British Veterinary Nursing Association | Other services | 1994 |
| THE Business Agility Coach Limited | Professional & scientific | 2021 |
| THE Byfrons Management Company Limited | Households | 1993 |
| THE Call Innovative Limited | Information & communication | 2022 |
| THE Candle Bar Ltd | Manufacturing | 2023 |
| THE Carat Shop Limited | Wholesale & retail | 2006 |
| THE Carpentry Group Ltd | Administrative & support | 2018 |
| THE Carriages RTM Company Ltd | Households | 2014 |
| THE Chelmsford Hygienist Ltd | Health & social care | 2023 |
| THE China-Uk Construction and Building Materials Alliance Limited | Wholesale & retail | 2026 |
| THE Classic Carpet & Flooring Company Limited | Extraterritorial | 2011 |
| THE Clock Tower (Gloucester) Management Company Ltd | Households | 2006 |
| THE Clothing Vault Ltd | Wholesale & retail | 2020 |
| THE Cloud Practice Limited | Information & communication | 2014 |
| THE CO2 GAS Company Limited | Energy | 1999 |
| THE Coffee Officina Ltd | Manufacturing | 2013 |
| THE Colour of Marketing Ltd | Professional & scientific | 2017 |
| THE Company Black London Ltd | Other services | 2023 |
| THE Concord Road Residents Association Limited | Households | 1992 |
| THE Concrete Flooring Contractors Ltd | Construction | 2013 |
| THE Coter Group Ltd | Health & social care | 2025 |
| THE Courtyard (Hertford) RTM Company Ltd | Households | 2012 |
| THE Customers View Limited | Other services | 2006 |
| THE Daiquiri Club Ltd | Hospitality | 2026 |
| THE Davis Consulting Group International Ltd | Information & communication | 2026 |
| THE Derek Shuttleworth Educational Trust | Education | 2003 |
| THE Diamond Banqueting Suite Limited | Hospitality | 2025 |
| THE Diaspora Community Projects (Diaspora) | Administrative & support | 2004 |
| THE Diaspora Community Projects Limited | Administrative & support | 2023 |
| THE Diaspora Hub Ltd | Health & social care | 2025 |
| THE Doggy PIT Stop Limited | Administrative & support | 2026 |
| THE Drain Survey Company Ltd | Water & waste | 2021 |
| THE Eastern Africa Association | Other services | 1991 |
| THE Ecology Group Limited | Financial services | 2021 |
| THE Edit Blackhorse Ltd | Hospitality | 2023 |
| THE Endometriosis Centre Limited | Extraterritorial | 2006 |
| THE Epitome Medical Limited | Health & social care | 2023 |
| THE Export Hub Limited | Administrative & support | 2019 |
| THE F.E.E Consulting Group Limited | Health & social care | 2026 |
| THE Fairways (Phase 2) Management Company Limited | Households | 2010 |
| THE Fine Graze Ltd | Hospitality | 2025 |
| THE First Rowlands Castle Residents Association Limited | Households | 1988 |
| THE Florist Loughton Ltd | Wholesale & retail | 2019 |