| Takeley Construction Limited | Construction | 2023 |
| Takeley Fish & Chicken Ltd | Hospitality | 2023 |
| Takeley House Limited | Hospitality | 2017 |
| Takeley Old School Community Cafe CIC | Hospitality | 2026 |
| Takeley Performance Tyres & Exhausts Ltd | Administrative & support | 2018 |
| Takeley Solutions Ltd | Extraterritorial | 2022 |
| Talent Search Group Limited | Administrative & support | 2024 |
| Tall Timbers Property Professionals Ltd | Real estate | 2024 |
| Tambora Consulting Limited | Professional & scientific | 2021 |
| Tandi Sprinklers Fire Protection Ltd | Construction | 2025 |
| Tanners Wharf Limited | Construction | 2011 |
| Tanners Wharf Management Limited | Households | 2017 |
| Tar-Mar Ltd | Construction | 2020 |
| Task Construction & Plant Ltd | Administrative & support | 2025 |
| Taskbar Limited | Information & communication | 2012 |
| Tate & Harriss Limited | Administrative & support | 2020 |
| Tax Assurance Services Limited | Financial services | 2000 |
| TAY Bridal Ltd | Wholesale & retail | 2025 |
| Tayco Services Limited | Households | 1988 |
| Taylor Grange Properties Ltd | Construction | 2018 |
| TBB Events Limited | Information & communication | 2010 |
| Tbgp Ltd | Hospitality | 2020 |
| Tbtcom Ltd | Manufacturing | 2015 |
| TBW Motors Ltd | Wholesale & retail | 2026 |
| TC Tree Surgery & Grounds Maintenance Limited | Other services | 2022 |
| Tcmm Limited | Health & social care | 2024 |
| Tcwc Management Limited | Households | 2018 |
| Tdr&Xia Buildings Ltd | Construction | 2020 |
| TE Systems Group Ltd | Financial services | 2023 |
| Team 2 Clean Limited | Administrative & support | 2011 |
| Teasdales Management Company Limited | Households | 1995 |
| Tech Vale Limited | Professional & scientific | 2022 |
| Techfident Limited | Information & communication | 2018 |
| Technocrats Business Solutions Limited | Information & communication | 2002 |
| Technology and Finance Solutions Ltd | Information & communication | 2025 |
| Techstar Corp Ltd | Information & communication | 2025 |
| Techwyse Limited | Information & communication | 1990 |
| Tecmagik Limited | Information & communication | 2020 |
| TECNICO4U Ltd | Information & communication | 2012 |
| TED Boswell PT & Online Coach Limited | Health & social care | 2021 |
| Teddy-Car UK Limited | Transport & logistics | 2019 |
| Tees Building Management Limited | Households | 2016 |
| Teker Food Ltd | Hospitality | 2024 |
| Templar Spirit Ltd | Professional & scientific | 2021 |
| Temple Real Estate LLP | | 2019 |
| Tempting Talent Limited | Professional & scientific | 2019 |
| Tempting Ventures Holdings Limited | Professional & scientific | 2024 |
| TEN Spindrift Ltd | Wholesale & retail | 2023 |
| Tenon Construction Limited | Construction | 2007 |
| Tenon Properties (Stansted) Limited | Construction | 2023 |
| Tenon Properties Limited | Construction | 2017 |
| Teoh Orthopaedic Limited | Health & social care | 2021 |
| Terra Technology Ltd | Information & communication | 2023 |
| TEX Plumbing & Heating Ltd | Construction | 2025 |
| Textiles Artro Ltd | Manufacturing | 2021 |
| TFG Global Power Limited | Energy | 2019 |
| TFS Holdings (Midlands) Limited | Construction | 2017 |
| TFX 2023 Limited | Financial services | 2023 |
| Thaddeus Services Ltd | Administrative & support | 2019 |
| Thailantis Ltd | Professional & scientific | 2014 |
| Thailantis Property Ltd | Professional & scientific | 2019 |
| Thalassophy Lifestyle Limited | Wholesale & retail | 2017 |
| That 360 Company Limited | Real estate | 2022 |
| THAT360 Vehicle Services Limited | Administrative & support | 2022 |
| Thawley Business Support Ltd | Professional & scientific | 2020 |
| THE 1100 Club (International) Ltd | Extraterritorial | 2016 |
| THE 1100 Club Ltd | Extraterritorial | 2025 |
| THE 300 Agency Ltd | Professional & scientific | 2024 |
| THE 378 Kitchen Limited | Hospitality | 2023 |
| THE Adora Group Limited | Information & communication | 2004 |
| THE Apollo UK Group Ltd | Construction | 2019 |
| THE Balance Group Ltd | Information & communication | 2019 |
| THE Brow Tech Ltd | Other services | 2025 |
| THE Candid Cook Company Ltd | Hospitality | 2021 |
| THE Cane Company (UK) Limited | Wholesale & retail | 2005 |
| THE Castle Freehouse Ltd | Hospitality | 2021 |
| THE Clinical Beauty Room Aesthetics Limited | Health & social care | 2023 |
| THE Clinical Beauty Room Ltd | Other services | 2023 |
| THE Collected Home Interiors Ltd | Wholesale & retail | 2025 |
| THE Cottage, Birchanger Limited | Hospitality | 2014 |
| THE Cotton Poet Limited | Households | 2017 |
| THE Cougar Group Limited | Professional & scientific | 2008 |
| THE Craft Cabin CM21 Ltd | Wholesale & retail | 2019 |
| THE Creative Cupid Ltd | Professional & scientific | 2022 |
| THE Crown Inn (Elsenham) Limited | Hospitality | 2019 |
| THE Decorating Company Ltd | Construction | 2017 |
| THE Digital Marketing Union Ltd | Professional & scientific | 2023 |
| THE Dove Partnership Ltd | Administrative & support | 2012 |
| THE ED Dietitian Limited | Health & social care | 2023 |
| THE Engineered Flooring Company Limited | Construction | 2016 |
| THE Enterprise Department Limited | Administrative & support | 1994 |
| THE Face Tonic Limited | Other services | 2023 |
| THE Fisita Foundation | Education | 2018 |
| THE Floor Store Direct Limited | Administrative & support | 1997 |
| THE Flying Seagull Trading Company Ltd | Arts & recreation | 2018 |
| THE Frisco Property Company Limited | Hospitality | 2019 |
| THE Gardens of Easton Lodge Preservation Trust | Arts & recreation | 2003 |
| THE George Courtyard Limited | Households | 2008 |
| THE Glolounge Clinic Limited | Other services | 2024 |
| THE Goods Yard Coffee Company Limited | Hospitality | 2024 |