| TBA Holdings Ltd | Financial services | 2024 |
| TBL Academy LLP | | 2019 |
| TBM (Yorkshire) Limited | Real estate | 2025 |
| Tbrp Communities Limited | Real estate | 2023 |
| TBT Joinery Limited | Manufacturing | 2008 |
| TC Supplies Halifax Limited | Wholesale & retail | 2018 |
| TCB & SMH Holdings Ltd | Financial services | 2024 |
| TCB Direct Limited | Wholesale & retail | 2015 |
| TCB Renovations Ltd | Construction | 2024 |
| TCB Rentals Ltd | Real estate | 2024 |
| TCM Properties Limited | Real estate | 2021 |
| TDB 2012 Ltd | Health & social care | 2012 |
| TDE Consultancy Services Ltd | Other services | 2016 |
| Teach Smart Limited | Education | 2016 |
| Teachsuite Ltd | Information & communication | 2020 |
| Team Shaw's Limited | Professional & scientific | 2024 |
| Teamed C & C UK Ltd | Professional & scientific | 2026 |
| Tech Cash Ltd | Wholesale & retail | 2025 |
| Tech Coach Limited | Information & communication | 2025 |
| Tech Infusion Limited | Information & communication | 2022 |
| Tech IT Forward Limited | Information & communication | 2025 |
| Tech Styles Dance Ltd | Arts & recreation | 2018 |
| Technical and Cultural Consultants Ltd | Professional & scientific | 2010 |
| Technifood Ltd | Professional & scientific | 2021 |
| Technology & Legal Consultancy Limited | Professional & scientific | 2014 |
| Technology 7 Limited | Information & communication | 2008 |
| Techquilibrium Limited | Information & communication | 2019 |
| Teddy Television Limited | Other services | 2021 |
| Teeside Recruitment Education Ltd | Education | 2024 |
| Tekori Limited | Extraterritorial | 2013 |
| Templars Gate Management Company Limited | Households | 2011 |
| Tempsave Ltd | Administrative & support | 2020 |
| Temuchin Limited | Administrative & support | 2019 |
| Tennis Technology Ltd | Administrative & support | 2017 |
| Terri Smith Photography Ltd | Professional & scientific | 2024 |
| Tervidani Installations Ltd | Construction | 2022 |
| Testrite Limited | Manufacturing | 1963 |
| Tex'Ance Limited | Wholesale & retail | 2022 |
| TG (Halifax) Limited | Other services | 2015 |
| Thai Corner 2 Limited | Hospitality | 2013 |
| Thai Corner Dean Clough Ltd | Hospitality | 2020 |
| Thai Corner@Bury Market Limited | Hospitality | 2015 |
| Thai Corner@Halifax Market Limited | Hospitality | 2015 |
| Thai Halifax Ltd | Hospitality | 2015 |
| Thai Promise Home Care Ltd | Health & social care | 2026 |
| THE 2107KITCHEN Ltd | Hospitality | 2025 |
| THE 360 Technology Group Limited | Information & communication | 2024 |
| THE 4 ALL Group Ltd | Construction | 2020 |
| THE 4 G'S Investments Ltd | Real estate | 2017 |
| THE Adeels Line Ltd | Health & social care | 2020 |
| THE Adeels Line Property Holdings Ltd | Real estate | 2025 |
| THE African Heritage Store Ltd | Wholesale & retail | 2025 |
| THE Arches DC Ltd | Hospitality | 2025 |
| THE Asbestos Law Partnership LLP | | 2017 |
| THE Avaya Corporation Limited | Professional & scientific | 2025 |
| THE Basement Recovery Project | Health & social care | 2008 |
| THE Beach HUT Holyhead Ltd | Hospitality | 2018 |
| THE Beauty Assembly Ltd | Real estate | 2019 |
| THE Beauty Specialist Limited | Other services | 2003 |
| THE Beauty Towers Ltd | Other services | 2021 |
| THE Behaviours Agency (EOT) Limited | Financial services | 2025 |
| THE Behaviours Agency Limited | Professional & scientific | 2011 |
| THE Big Green Timber Company Limited | Agriculture & fishing | 2001 |
| THE Bull on the Bridge Ltd | Hospitality | 2020 |
| THE Butler Ridge Group Ltd | Real estate | 2023 |
| THE Butler Sink Company Limited | Extraterritorial | 2018 |
| THE Cake Emporium Ltd | Manufacturing | 2012 |
| THE Cakery West Yorkshire Ltd | Hospitality | 2023 |
| THE Calder and Colne Rivers Trust | Professional & scientific | 2009 |
| THE Calderdale Community Childcare Company Ltd | Health & social care | 2007 |
| THE Car Shack (HX) Ltd | Wholesale & retail | 2024 |
| THE Carroll Cleaning Company Limited | Administrative & support | 1987 |
| THE Cashmere Scarf Company Ltd | Wholesale & retail | 2015 |
| THE Cast Stone Company (Holdings) Limited | Financial services | 2012 |
| THE Cast Stone Company Limited | Manufacturing | 1992 |
| THE CGI People Ltd | Professional & scientific | 2022 |
| THE Childrens Classic Clothing Co Limited | Manufacturing | 2005 |
| THE Chocolate Box (Halifax) Ltd | Wholesale & retail | 2022 |
| THE City Law Book House Ltd | Wholesale & retail | 2025 |
| THE Clay Team Halifax Limited | Administrative & support | 2013 |
| THE Club Casual Limited | Wholesale & retail | 2024 |
| THE Co Universe Ltd | Information & communication | 2025 |
| THE Commercial Property Buying Company Limited | Real estate | 2016 |
| THE Commercial Property Buying Group Limited | Financial services | 2021 |
| THE Conclave Global Ltd | Administrative & support | 2025 |
| THE Cosmetic Doctor Halifax Ltd | Other services | 2025 |
| THE Creative Core Group Holdings Ltd | Financial services | 2022 |
| THE Creative Core Group Ltd. | Professional & scientific | 2018 |
| THE Crossley Heath School Academy Trust Limited | Education | 2012 |
| THE Cube LAB Limited | Information & communication | 2008 |
| THE Delicious Dough Co Limited | Wholesale & retail | 2022 |
| THE Difference Group Ltd | Professional & scientific | 2023 |
| THE Difference Hospitality Group Ltd | Hospitality | 2020 |
| THE Digital Consortium Limited | Information & communication | 2007 |
| THE Digital DRA Ltd | Financial services | 2021 |
| THE Digital Strategy Unit Limited | Professional & scientific | 2015 |
| THE Distasteful Gift Company Ltd | Manufacturing | 2020 |
| THE DO Collective Limited | Professional & scientific | 2022 |
| THE Dodwell Group Ltd | Professional & scientific | 2025 |
| THE Dog Depot Ltd | Other services | 2025 |