| Theatrix Uk/Amber M Ltd | Arts & recreation | 2023 |
| Thekinderhouse Ltd | Other services | 2015 |
| Thellas Limited | Information & communication | 2017 |
| Therapy Services Limited | Health & social care | 1989 |
| Third Wave Identity Ltd | Information & communication | 2021 |
| Thistle & Thrift Ltd | Manufacturing | 2020 |
| Thompson & Thompson (UK) Ltd | Information & communication | 2014 |
| Thorn Restaurant Ltd | Hospitality | 2022 |
| Thornberg Limited | Professional & scientific | 2020 |
| Thornton & Associate Consultancy Ltd | Professional & scientific | 2025 |
| Thort AI Ltd | Information & communication | 2025 |
| Thrive Health and Wellbeing Ltd | Health & social care | 2025 |
| Through Life Engineering Support Solutions Ltd | Professional & scientific | 2018 |
| Tidey & Co International Limited | Professional & scientific | 2023 |
| Tiger Bookkeeping Services Ltd | Professional & scientific | 2013 |
| Tiger Bytez Ltd | Administrative & support | 2020 |
| Tiki Beach 1 Ltd | Hospitality | 2023 |
| Titus Groan Ltd | Information & communication | 2014 |
| TJ Gallagher Ltd | Construction | 2025 |
| TJC Ltd | Hospitality | 2021 |
| TJJ Legal Limited | Information & communication | 2015 |
| TMA Consulting Limited | Information & communication | 2000 |
| TMF Risk Solutions Ltd | Financial services | 2016 |
| Together Publishing Ltd | Arts & recreation | 2008 |
| Together Workspace Ltd | Administrative & support | 2021 |
| Tokcob Limited | Wholesale & retail | 2019 |
| TOM Pemberton Farm Life Limited | Information & communication | 2020 |
| Tomogames Ltd | Information & communication | 2026 |
| Tony Culhane Racing Ltd | Arts & recreation | 2023 |
| Topline Cables Limited | Manufacturing | 2018 |
| Total Hair & Beauty Ltd | Wholesale & retail | 2008 |
| Total Massage Solutions Ltd | Other services | 2020 |
| Touch Screen Europe Limited | Professional & scientific | 2010 |
| Towercross Limited | Professional & scientific | 2003 |
| Town END Way Estate NO1 Limited | Households | 2011 |
| Townson Consulting Limited | Professional & scientific | 2001 |
| Track Record Corporation Limited | Manufacturing | 2025 |
| Trade Park Rentals Limited | Real estate | 2022 |
| Tradewinds 2025 Ltd | Wholesale & retail | 2025 |
| Trafalgar House Apartments RTM Company Limited | Households | 2023 |
| Trafalgar Workforce Solutions Limited | Administrative & support | 2017 |
| Traffic Management Services (NW) Ltd | Construction | 2014 |
| Train Life Asset Management Services Ltd | Transport & logistics | 2017 |
| Train Like an Athlete Ltd | Health & social care | 2020 |
| Tranquil Childrens Care Ltd | Health & social care | 2023 |
| Trans Pennine Community Housing CIC | Real estate | 2011 |
| Travel Mouse Limited | Wholesale & retail | 2025 |
| Travel Style Group Limited | Administrative & support | 2020 |
| TRC Accountancy Ltd | Professional & scientific | 2009 |
| Trem Y Chwarel Management Ltd | Households | 2018 |
| Tremah Management Limited | Professional & scientific | 2024 |
| TRF Restaurants Limited | Hospitality | 2020 |
| TRI Sigma Holdings Ltd | Financial services | 2025 |
| Trinity Cyber Limited | Information & communication | 2018 |
| Trott's Independent Traders Ltd | Hospitality | 2021 |
| Truck Springs UK Limited | Wholesale & retail | 2002 |
| True Athletic Limited | Wholesale & retail | 2020 |
| True Blue (Legal) Limited | Professional & scientific | 2022 |
| Truffle & Basil Ltd | Hospitality | 2020 |
| Trunk Restaurant Ltd | Hospitality | 2022 |
| TSC North West Limited | Hospitality | 2018 |
| TSI Hosting Ltd. | Information & communication | 2014 |
| TT Twins Brothers AR Ltd | Construction | 2021 |
| Tudor Lodge Management Company (ST. Annes) Limited | Households | 1977 |
| TVA Consultants Ltd | Wholesale & retail | 2014 |
| TW36 Construction Ltd | Construction | 2026 |
| Twentyonenine Property Developments Ltd | Construction | 2026 |
| Twin F.I.F Limited | Administrative & support | 2018 |
| Twitchett Ltd | Financial services | 2025 |
| Twyford Tots Limited | Education | 1998 |
| TYR Developments Ltd | Real estate | 2026 |
| Tzero Solutions Ltd | Information & communication | 2014 |
| U-Save Limited | Information & communication | 2002 |
| UK Coastal Hotels Ltd | Hospitality | 2022 |
| UK Exclusive Entertainments Ltd | Other services | 2022 |
| UK HTS Ltd | Manufacturing | 2025 |
| UK Investigation Services Ltd | Administrative & support | 2020 |
| UK National Payroll Services Ltd | Administrative & support | 2022 |
| UK Roofing Experts Ltd | Construction | 2025 |
| UK Strength & Conditioning Association | Other services | 2004 |
| Uk-Tefl Ltd | Education | 2006 |
| Ukpc Events Ltd | Administrative & support | 2017 |
| Ultraclean (North West) Ltd | Administrative & support | 2003 |
| UN Momento Ltd | Hospitality | 2025 |
| Unbounded Solutions Limited | Other services | 1974 |
| Uniconomy Limited | Wholesale & retail | 2005 |
| Unicorn Chemicals Limited | Professional & scientific | 2005 |
| Uniformsrus Ltd | Wholesale & retail | 2015 |
| United Properties Developments Ltd | Construction | 2024 |
| United Tools (NW) Ltd | Wholesale & retail | 2008 |
| Unity Business Systems Ltd | Administrative & support | 2019 |
| Uppal Music INT. Ltd | Information & communication | 2020 |
| Uppaltrading Limited | Wholesale & retail | 2024 |
| Upward Energy Ltd | Construction | 2022 |
| Urban Residence Ltd | Real estate | 2015 |
| Urban ST Anne's Community Interest Company | Arts & recreation | 2024 |
| Ursa & Bygrove Ltd | Information & communication | 2021 |
| User Scope Ltd | Professional & scientific | 2017 |
| Utility Plus Limited | Energy | 2015 |
| Utility Systems Limited | Information & communication | 2016 |