| T Wright Plastering Contractors Limited | Construction | 2020 |
| T&C Healthcare Services Ltd | Health & social care | 2021 |
| T&L Body Repair Ltd | Wholesale & retail | 2022 |
| T&O and Spine Limited | Health & social care | 2011 |
| T&S Catering Ltd | Hospitality | 2025 |
| T-Build Limited | Construction | 2019 |
| T.I.S.S. Limited | Manufacturing | 2001 |
| T.K.F Investco Limited | Financial services | 2023 |
| T.Morrell Events Ltd | Hospitality | 2025 |
| T.S. Plastering & Rendering Limited | Construction | 2025 |
| T.T.T Cleaning Ltd | Manufacturing | 2024 |
| T/A Lost Time Tattoos Limited | Arts & recreation | 2026 |
| T28 Electrical Services Ltd | Extraterritorial | 2024 |
| T5 Event Media Limited | Administrative & support | 2009 |
| T8 Investments Limited | Households | 2025 |
| T98 Limited | Manufacturing | 2021 |
| Taank Technologies Limited | Information & communication | 2016 |
| Taba Consultancy Services Ltd | Professional & scientific | 2018 |
| Taceone Limited | Professional & scientific | 2016 |
| Taco BAE Ltd | Hospitality | 2025 |
| TAG Studio Ltd | Professional & scientific | 2011 |
| Taiba Inn Ltd | Hospitality | 2017 |
| Tailgate.Uk Ltd | Other services | 2023 |
| Tailor Made Locum Solutions Limited | Administrative & support | 2015 |
| Tailored Contract Cleaning Limited | Administrative & support | 2010 |
| Tailored Contract Services Limited | Administrative & support | 2023 |
| Tailored Van Blinds Ltd | Manufacturing | 2025 |
| Tailors Sawyer Ltd | Wholesale & retail | 2025 |
| Take UP Space Training Ltd | Education | 2024 |
| Taking Control Limited | Extraterritorial | 2000 |
| Takt Automation Limited | Manufacturing | 2025 |
| Talbot Accountancy Services Ltd | Professional & scientific | 2018 |
| Talbot Properties NW Ltd | Real estate | 2025 |
| Talbot Road Car Wash Ltd | Administrative & support | 2020 |
| Talbot Road Valeting Services Ltd | Wholesale & retail | 2021 |
| Talbot Salerooms Ltd | Wholesale & retail | 2016 |
| Talbot Trade Motor Supplies Ltd | Wholesale & retail | 2023 |
| Talbot Trade Supplies (NW) Limited | Administrative & support | 2010 |
| Talearnt Recruitment Ltd | Administrative & support | 2024 |
| Talitah Ltd | Real estate | 2025 |
| Tall Bloke Consulting Limited | Information & communication | 2012 |
| Talog Properties Limited | Real estate | 2016 |
| Talon NDT Blackpool Limited | Education | 2013 |
| Talos Software Ltd | Information & communication | 2018 |
| Tanav Limited | Extraterritorial | 2019 |
| Tandem Bank Limited | Financial services | 1969 |
| Tandem Home Loans Limited | Financial services | 2006 |
| Tandem Money Limited | Financial services | 2013 |
| Tandem Motor Finance Limited | Financial services | 2010 |
| Tandem Personal Loans Limited | Financial services | 2013 |
| Tangerine Lakes Breaks Limited | Hospitality | 2021 |
| Tangerine Realisations Limited | Real estate | 2019 |
| Tangerine Solutions Ltd | Information & communication | 2009 |
| Tangerine Training Group Ltd | Education | 2025 |
| Tanti Foods Ltd | Hospitality | 2026 |
| Tanya and Yashica Consulting Limited | Information & communication | 2011 |
| TAP & Go Group Limited | Professional & scientific | 2000 |
| TAP & Go Ltd | Financial services | 2020 |
| TAP & Go Payments UK Ltd | Professional & scientific | 2022 |
| TAP & Vent (Kirkham) Limited | Hospitality | 2019 |
| TAP N PAY Limited | Information & communication | 2026 |
| Tara Hunter Fashions Ltd | Wholesale & retail | 2011 |
| Taras Properties Ltd | Real estate | 2024 |
| Tarberg Limited | Professional & scientific | 2018 |
| Tarzan Access Solutions Ltd | Mining & quarrying | 2024 |
| Taste of Four UK Ltd | Hospitality | 2026 |
| Taste of Life BD Ltd | Hospitality | 2025 |
| Taste of Life Food Ltd | Hospitality | 2022 |
| Taste of Sindh Ltd | Wholesale & retail | 2024 |
| Tasty Eats Online Ltd | Information & communication | 2024 |
| Tasty Investment Ltd | Real estate | 2022 |
| Tattoo Mousse Ltd | Wholesale & retail | 2021 |
| Tattoos by Connor Prue Ltd | Other services | 2016 |
| Taurus Tyres Limited | Administrative & support | 2015 |
| Tavesab Ltd | Hospitality | 2026 |
| Tayjo Limited | Wholesale & retail | 2026 |
| Taylor Made Bookkeeping Limited | Professional & scientific | 2014 |
| Taylor'D Projects Ltd | Construction | 2011 |
| Taylor's General Stores Limited | Real estate | 2001 |
| Taylored Housing Limited | Real estate | 2016 |
| Taylored Power Limited | Administrative & support | 2018 |
| Taylormade Furniture Limited | Manufacturing | 2010 |
| Taylors Admin Ltd | Administrative & support | 2025 |
| Taylors Travel NW Ltd | Transport & logistics | 2025 |
| Taymar Rail Ltd | Construction | 2016 |
| Taymin Ltd | Wholesale & retail | 2001 |
| TBD 56 Ltd | Hospitality | 2026 |
| TBR Services NW Ltd | Wholesale & retail | 2024 |
| Tbsk Consultancy Limited | Other services | 2009 |
| TC Business Consulting Ltd | Information & communication | 2020 |
| TCF Blackpool Ltd | Hospitality | 2026 |
| Tcgm Media Group Ltd | Information & communication | 2023 |
| TCM Blackpool Ltd | Hospitality | 2026 |
| TD Access Engineering Ltd | Mining & quarrying | 2022 |
| TD Housing Limited | Real estate | 2024 |
| Tea Amantes - Tearoom & Gallery Ltd | Hospitality | 2022 |
| Tea Amantes Ltd | Hospitality | 2021 |
| Teaching, Assessing & Consultancy Services Ltd | Professional & scientific | 2024 |
| Team Tuff Limited | Health & social care | 2019 |
| Tech Building Limited | Construction | 2018 |