| Transatz Ltd | Professional & scientific | 2020 |
| Transcend Care Limited | Health & social care | 2022 |
| Transdrop Limited | Wholesale & retail | 2025 |
| Transerv IT Consultancy Limited | Administrative & support | 2013 |
| Transfers Blackpool Ltd | Transport & logistics | 2026 |
| Transformers Prime Ltd | Real estate | 2026 |
| Transitions Care Fylde Limited | Health & social care | 2017 |
| Transporabus North West Ltd | Transport & logistics | 2007 |
| Trask Building Contractors Limited | Construction | 2019 |
| Treasure Chest Antiques Limited | Wholesale & retail | 1970 |
| Trenchlink Limited | Households | 1993 |
| Trend IT Ltd | Information & communication | 2015 |
| Trend Real Estate Trading Limited | Real estate | 2025 |
| Trenddit Limited | Professional & scientific | 2024 |
| Trentham Guest House Ltd | Hospitality | 2018 |
| Trespass Technology Limited | Information & communication | 2017 |
| Trevor Blackburn Taxis Ltd | Transport & logistics | 2002 |
| Triad Seven Seas Limited | Extraterritorial | 2026 |
| Trickyfeet Limited | Wholesale & retail | 2011 |
| Trident Energy Solutions Ltd | Financial services | 2024 |
| Trident Utilities Limited | Professional & scientific | 2001 |
| Triggpoint Geodata Solutions Limited | Information & communication | 2021 |
| Trillionaire Ltd | Professional & scientific | 2016 |
| Trim-It UK Limited | Wholesale & retail | 2001 |
| Trim-Unique Limited | Wholesale & retail | 2014 |
| Trimas Homes Limited | Construction | 2023 |
| Trimntab Ltd | Wholesale & retail | 2022 |
| Trinity Hospice Trading Ltd | Wholesale & retail | 1987 |
| Trinitynova Limited | Wholesale & retail | 2025 |
| Triple 7 Storage Ltd | Transport & logistics | 2025 |
| Triple Stave Limited | Professional & scientific | 2026 |
| Triplea Beauty Empire Ltd | Other services | 2025 |
| Triplex Developments Limited | Construction | 2009 |
| Trium Properties Ltd | Real estate | 2021 |
| Triumph Rentals Trading AS the Emporium Ltd | Wholesale & retail | 2021 |
| Trojan Workforce Ltd | Other services | 2017 |
| Tropic Kana Limited | Wholesale & retail | 2019 |
| Tropical Environmental Consultants Limited | Agriculture & fishing | 2019 |
| Tropics Beach Hotel Limited | Hospitality | 2023 |
| Trovamed Ltd | Wholesale & retail | 2026 |
| Trow's Transport Ltd | Transport & logistics | 2024 |
| Troy County Limited | Real estate | 2010 |
| Troy Northwest Ltd | Hospitality | 2025 |
| Truck Art Cafe Ltd | Wholesale & retail | 2024 |
| Trucks Transport Leigh Limited | Transport & logistics | 2023 |
| True Christian Global Ministries Ltd | Other services | 2021 |
| True Christian Global Mpvf Ltd | Extraterritorial | 2023 |
| True Christian Sovereign Authority Ltd | Other services | 2021 |
| True Christian Sovereign Nation Ltd | Other services | 2021 |
| True Christian Sovereign Prudential Ltd | Professional & scientific | 2023 |
| True Christian Sovereign Reserve Ltd | Professional & scientific | 2023 |
| True Christian Sovereign State Ltd | Other services | 2021 |
| True Christian Sovereign Treasury Ltd | Professional & scientific | 2023 |
| True Clean Solutions Ltd | Professional & scientific | 2025 |
| Truehaven Estates Ltd | Real estate | 2025 |
| Truenorth Staffing Ltd | Administrative & support | 2024 |
| Trust Auto Blackpool Limited | Wholesale & retail | 2015 |
| Trust in Community - the TIC Group CIC | Manufacturing | 2023 |
| Trust Pave Ltd | Administrative & support | 2025 |
| Trusted 2 Care Ltd | Information & communication | 2020 |
| Trusted Airways Ltd | Transport & logistics | 2021 |
| Trusted Therapeutic Care and Education Limited | Health & social care | 2021 |
| Trustvault Ltd | Information & communication | 2026 |
| TS Electrical (North West) Ltd | Construction | 2025 |
| TS Print (North West) Ltd | Wholesale & retail | 2016 |
| TSL Services Ltd | Construction | 2024 |
| Tsmgo Ltd | Information & communication | 2024 |
| Tsrm Solutions Limited | Information & communication | 2019 |
| TSW Transport Service Limited | Transport & logistics | 2019 |
| TT Football Limited | Arts & recreation | 2025 |
| TT Golf Tech Limited | Wholesale & retail | 2023 |
| Ttmhhub Limited | Health & social care | 2025 |
| TU (Holdings) Limited | Professional & scientific | 2017 |
| Tucaboo Limited | Wholesale & retail | 2025 |
| Tudu Yachting Ltd | Extraterritorial | 2025 |
| Tuff Nutrition Limited | Wholesale & retail | 2018 |
| Tuff Training Limited | Health & social care | 2014 |
| Tuff V2 Limited | Arts & recreation | 2021 |
| TUK TUK Street Food Ltd | Hospitality | 2026 |
| Tuksumduin Pharma UK Ltd | Wholesale & retail | 2017 |
| Tulgane Limited | Other services | 2020 |
| Tulip Connections Limited | Construction | 2000 |
| Tumuli Yachting Limited | Extraterritorial | 2024 |
| Tuom Consultancy Limited | Other services | 2019 |
| Turbo Tiler Limited | Construction | 2026 |
| Turleyworld Ltd | Wholesale & retail | 2019 |
| Turn IT Consultancy Ltd | Information & communication | 2020 |
| Turner Clark the Salon Ltd | Other services | 2020 |
| Turner Electrical NW Ltd | Construction | 2008 |
| Turner Sprigg Supplies Ltd | Wholesale & retail | 2023 |
| Turnpoint Consulting Limited | Professional & scientific | 2026 |
| Turnside Marketing Limited | Other services | 1992 |
| Tusting Lusher Ltd | Wholesale & retail | 2025 |
| TWE 2.0 Limited | Real estate | 2024 |
| TWI Investments Limited | Real estate | 2021 |
| Twiga Investments Limited | Real estate | 1999 |
| Twins Yachting Ltd | Extraterritorial | 2024 |
| Twisted Namploy Limited | Hospitality | 2025 |
| TWL Training Ltd | Education | 2021 |
| Two Keys Security Limited | Administrative & support | 2026 |