| THE Estate Management Team (UK) Ltd | Financial services | 2025 |
| THE Forge (Wickford) Management Company Limited | Households | 2010 |
| THE Funch Box Limited | Wholesale & retail | 2020 |
| THE Gold Standard Limited | Education | 2024 |
| THE Gold Standard Training Company Limited | Education | 2024 |
| THE Grab Hire (UK) Company Limited | Extraterritorial | 2015 |
| THE Great Escape Collections Limited | Hospitality | 2025 |
| THE Guild of Church Musicians | Other services | 1905 |
| THE Guitar Hospital Limited | Arts & recreation | 2010 |
| THE Hair Desk Limited | Other services | 2018 |
| THE Hazards Consultancy Ltd | Professional & scientific | 2025 |
| THE Head Spa Group Ltd | Other services | 2024 |
| THE Interbellum Tattoo Company Ltd | Other services | 2024 |
| THE International Millinery Network Ltd | Administrative & support | 2025 |
| THE Joinery Co. (London) Ltd | Manufacturing | 2014 |
| THE Koffee Van Ltd | Hospitality | 2023 |
| THE Learning Circle PRE School Limited | Education | 2014 |
| THE Level UP Club Ltd | Education | 2022 |
| THE Lillie’S Cafe Ltd | Hospitality | 2025 |
| THE Little Gift Shop Ltd | Wholesale & retail | 2023 |
| THE Longest Johns Limited | Arts & recreation | 2024 |
| THE Lord's Property Limited | Real estate | 2025 |
| THE Mushroom Alchemist Ltd | Health & social care | 2024 |
| THE Nationwide Emergency Glazing Company Ltd | Construction | 2009 |
| THE Olive Tree Play Cafe Limited | Hospitality | 2026 |
| THE Only Way IS Granite Limited | Construction | 2015 |
| THE Other Producer Limited | Information & communication | 2010 |
| THE Patio Supply Centre Limited | Wholesale & retail | 2019 |
| THE Pawn Index London Ltd | Other services | 2023 |
| THE People's Network Limited | Administrative & support | 2011 |
| THE Photography Movement CIC | Professional & scientific | 2018 |
| THE Player Marketplace Limited | Wholesale & retail | 2020 |
| THE Portfolio Hub Limited | Professional & scientific | 2026 |
| THE Positive Electrical Company (UK) Ltd | Wholesale & retail | 2006 |
| THE Property Accounting Bureau Limited | Administrative & support | 2017 |
| THE Prosperity Circle Limited | Real estate | 2025 |
| THE Redeemed Christian Church of GOD (Rccg) Sunday School UK Ltd | Other services | 2023 |
| THE Redeemed Christian Church of GOD Living Spring Centre | Other services | 2018 |
| THE Right Kind Ltd | Manufacturing | 2025 |
| THE Rookery (Essex) Limited | Real estate | 2013 |
| THE SET - Longevity Limited | Arts & recreation | 2025 |
| THE Smart Renderers Company Ltd | Construction | 2020 |
| THE Solar Trader Ltd | Wholesale & retail | 2007 |
| THE SOT & More Limited | Public administration | 2019 |
| THE Standing Conference of Mediation Advocates Limited | Education | 2011 |
| THE Steam TUG Portwey Trust | Other services | 2000 |
| THE Stone Company U K Limited | Manufacturing | 1998 |
| THE Sustainable Charcoal Company Ltd | Wholesale & retail | 2019 |
| THE Talent Edit Ltd | Administrative & support | 2025 |
| THE Toddlertownco Ltd | Other services | 2024 |
| THE Trendz Store Ltd | Wholesale & retail | 2025 |
| THE Trip Vault Limited | Administrative & support | 2026 |
| THE Warehouse Outlet Ltd | Wholesale & retail | 2024 |
| THE Weald Place Residents Association Limited | Households | 1989 |
| THE Wonky Witches Cauldron Ltd | Wholesale & retail | 2022 |
| THE Wooden Pool Shop Ltd | Wholesale & retail | 2025 |
| THE Workplace Practice Ltd | Professional & scientific | 2010 |
| THE Writer's House Ltd | Arts & recreation | 2023 |
| Theacecompany Ltd | Health & social care | 2026 |
| THEBODY360 Limited | Health & social care | 2022 |
| Thecannells Ltd | Administrative & support | 2024 |
| Thecinemacompany Ltd | Wholesale & retail | 2012 |
| Thelocksmithy Ltd. | Extraterritorial | 2021 |
| Theratec Ltd | Information & communication | 2024 |
| Therm Navitas Ltd | Professional & scientific | 2016 |
| Theseus Consulting Limited | Professional & scientific | 2004 |
| Thirteen Sylvan Road Flats Management Company Limited | Households | 1990 |
| Thomas Douglas Interiors Limited | | 2006 |
| Three Corners Ltd | Administrative & support | 2014 |
| Threeshinyapples Ltd | Information & communication | 2012 |
| Thrive Clinical Psychology Ltd | Health & social care | 2025 |
| Thurrock Engineering Supplies Holdings Limited | Financial services | 2022 |
| Thurrock Engineering Supplies Limited | Professional & scientific | 2014 |
| Tiger Business Supplies Ltd | Wholesale & retail | 2012 |
| Tilestone Ltd | Construction | 2015 |
| TIM Tims Essex Ltd | Hospitality | 2025 |
| Timber Design Tilbury Limited | Manufacturing | 2004 |
| Timeless Contractors Limited | Construction | 2004 |
| Timeless Kitchen Installers Limited | Extraterritorial | 2011 |
| Timesun Limited | Administrative & support | 2001 |
| TIP C at the Robin Hood Ltd | Hospitality | 2016 |
| Tip-Top Media Co. Ltd | Professional & scientific | 2021 |
| Titan Investments Group Ltd | Financial services | 2026 |
| Titans Community Group CIC | Education | 2024 |
| TJR Lettings Ltd | Hospitality | 2012 |
| TK & E Consultancy Ltd | Professional & scientific | 2020 |
| TK & E Properties Ltd | Real estate | 2022 |
| TKA Builders Limited | Construction | 2023 |
| TLB Consultancy Ltd | Hospitality | 2023 |
| TLB Lettings Ltd | Real estate | 2025 |
| TLS Landscapes and External Property Solutions Ltd | Administrative & support | 2022 |
| TM Law Limited | Professional & scientific | 2011 |
| TMS Tyres Essex Limited | Wholesale & retail | 2023 |
| Toad Fish Limited | Professional & scientific | 2019 |
| TOM Farrell Financial Planning Ltd | Financial services | 2022 |
| TON Management Ltd | Households | 2023 |
| Top Choice Motor Group Ltd | Wholesale & retail | 2025 |
| Top Tier Brickwork Ltd | Construction | 2025 |
| Top Tier Supplies Ltd | Wholesale & retail | 2018 |
| Torte Cake Art London Ltd | Manufacturing | 2013 |