| Top Shoppa 24/7 Ltd | Wholesale & retail | 2026 |
| Top Thai UK Ltd | Wholesale & retail | 2025 |
| Tope Construction Limited | Construction | 2001 |
| Topflight Digital Limited | Information & communication | 2019 |
| Topflight Holdings Limited | Financial services | 2025 |
| TOPSHOP666 Ltd | Wholesale & retail | 2025 |
| Total Air Quality Limited | Construction | 2017 |
| Total Car Sales Limited | Other services | 2014 |
| Total Carbon Savings Ltd | Construction | 2023 |
| Total Care and Support Limited | Construction | 2002 |
| Total Energy Hub Ltd | Wholesale & retail | 2024 |
| Total Eyecare Limited | Health & social care | 2013 |
| Total Gaming Solutions Limited | Professional & scientific | 2003 |
| Touch of Class Baby Boutique Ltd | Professional & scientific | 2022 |
| Towelogy Ltd | Wholesale & retail | 2018 |
| Town END Farm Management Company Ltd | Financial services | 2011 |
| Towneley Paints Ltd | Manufacturing | 2013 |
| Towneley Park Childrens' Nursery Ltd | Education | 2015 |
| Townley Holdings Ltd | Real estate | 2025 |
| Townsend Music Limited | Wholesale & retail | 2003 |
| Tpad AI Group Limited | Financial services | 2025 |
| Tpad AI Limited | Wholesale & retail | 2025 |
| Tpad AI Support Services Limited | Information & communication | 2025 |
| TPC Support Ltd | Administrative & support | 2023 |
| TR Procurement Ltd | Wholesale & retail | 2019 |
| Track & Kern Ltd | Administrative & support | 2011 |
| Trackngo Taxis Ltd | Administrative & support | 2024 |
| Trademark Construction Ltd | Construction | 2023 |
| Trafford Moor Holdings Ltd | Financial services | 2019 |
| Training 365 Limited | Education | 2002 |
| Training and Development Solutions Ltd | Education | 2018 |
| Transcendence Capital Management Ltd | Financial services | 2024 |
| Transparent Electrical Services Ltd | Construction | 2025 |
| Transpora North West Ltd | Transport & logistics | 2006 |
| Transport Crewe (Road Division) Ltd | Transport & logistics | 2011 |
| Transport Equipment Innovations Limited | Wholesale & retail | 2011 |
| Trauma Bar Limited | Hospitality | 2025 |
| Travelapp Ltd | Administrative & support | 2025 |
| Tribeca Restaurant Burnley Ltd | Hospitality | 2023 |
| Triffitt Limited | Manufacturing | 2019 |
| Triffitt Trailers Ltd | Manufacturing | 2020 |
| Triflux Limited | Information & communication | 2025 |
| Trillian Consultancy Ltd | Wholesale & retail | 2022 |
| Trish's Hair Studio Limited | Other services | 2024 |
| Trivana Enterprises Limited | Wholesale & retail | 2025 |
| Trophies and Treasures Limited | Wholesale & retail | 1974 |
| Trophy Pet Foods East Yorkshire Limited | Wholesale & retail | 2007 |
| Truck Limited Burnley Limited | Wholesale & retail | 2024 |
| True Colours Collective CIC | Professional & scientific | 2026 |
| Trueman Change Management Limited | Administrative & support | 2014 |
| Truemed Surgical Instruments Ltd | Manufacturing | 2025 |
| Trust Well Care Solutions Limited | Health & social care | 2024 |
| Trustlock Security Ltd | Financial services | 2024 |
| Truvenix Limited | Transport & logistics | 2025 |
| TSS Motor Solutions Ltd | Wholesale & retail | 2020 |
| Tszs-Uk Limited | Hospitality | 2026 |
| Ttjb Engineering Ltd | Professional & scientific | 2021 |
| TUF Tools Limited | Other services | 1993 |
| Tunespay Ltd | Financial services | 2026 |
| Tunworth Yard Limited | Real estate | 2020 |
| Turf MOT Centre Ltd | Wholesale & retail | 2017 |
| Turkish Barber Burnley Ltd | Other services | 2024 |
| Turkish Best Kebab Limited | Hospitality | 2011 |
| Turkish Burnley Scissors Ltd | Other services | 2026 |
| Turkish Kebab Colne Ltd | Hospitality | 2025 |
| Turner & Moore Electrical Ltd | Construction | 2023 |
| Turner ACT Ltd | Health & social care | 2024 |
| Turner Trade Co Ltd | Wholesale & retail | 2026 |
| Turnkey Renovations Limited | Construction | 2025 |
| Turquoise Colne Ltd | Hospitality | 2022 |
| Tvguide.Co.Uk Limited | Information & communication | 2005 |
| TW Aerospace Limited | Manufacturing | 2025 |
| Twinplas Limited | Extraterritorial | 2012 |
| TWK Holdings Ltd | Information & communication | 2023 |
| Two Splice Media Ltd | Information & communication | 2020 |
| Twosixtyfour Ltd | Professional & scientific | 2023 |
| Tyneside Express Transport Limited | Transport & logistics | 2000 |
| Tyre Worldd Ltd | Manufacturing | 2025 |
| U&A Care Services Ltd | Real estate | 2022 |
| U&T Services Ltd | Administrative & support | 2021 |
| UAV Aero Systems Ltd | Administrative & support | 2023 |
| Uddin Enterprise Ltd | Financial services | 2013 |
| UK Insurance Solutions Limited | Financial services | 2001 |
| UK Kebab and Pizza Barnsley Ltd | Hospitality | 2018 |
| UK Logistics Group Limited | Wholesale & retail | 2016 |
| UK Malayalee Matrimony Ltd | Information & communication | 2018 |
| UK MH Courier Service Ltd | Transport & logistics | 2025 |
| UK Print Newco Limited | Financial services | 2025 |
| UK Retail Sales Ltd | Wholesale & retail | 2025 |
| UK Sourced Ltd | Wholesale & retail | 2019 |
| Ukfc Burnley Ltd | Hospitality | 2026 |
| Ultimate Services (UK) Ltd | Other services | 2000 |
| Ultimate Visual Solutions Ltd | Information & communication | 2007 |
| UMA DMD Ltd | Health & social care | 2022 |
| Umar Malazi Ltd | Health & social care | 2016 |
| Umbra Security Group Limited | Administrative & support | 2022 |
| Umbrella IB Ltd | Financial services | 2026 |
| Undrafted Community Interest Company | Information & communication | 2025 |
| Unico Building Ltd | Construction | 2013 |
| Unicoplast Ltd | Construction | 2021 |