| Thorn Consultancy Ltd | Information & communication | 2024 |
| Thorn Marine Limited | Transport & logistics | 2024 |
| Thorn Tree Advisers Limited | Professional & scientific | 2026 |
| Thornberry Properties North Limited | Real estate | 2019 |
| Thorne Engineering Consultants Limited | Administrative & support | 2013 |
| Thornfield Manor Holdings Ltd | Real estate | 2019 |
| Thornfield Manor Limited | Real estate | 2018 |
| Thornton Construction Services Ltd | Administrative & support | 2007 |
| Thornton Tomasetti Warrington Limited | Professional & scientific | 2000 |
| Thorntree Investments Ltd. | Administrative & support | 2016 |
| Thorpe Avenue Properties Ltd | Real estate | 2016 |
| Threadnest Ltd | Wholesale & retail | 2025 |
| Three Counties Investments Limited | Construction | 1989 |
| Three Strands Together Limited | Professional & scientific | 2022 |
| Three Thai Sisters Limited | Other services | 2020 |
| Three Wise Monkeys Ltd | Professional & scientific | 2023 |
| Three's Company (Catering) Limited | Hospitality | 2010 |
| Threekit UK Limited | Wholesale & retail | 2022 |
| Threesixty Selection Limited | Administrative & support | 2009 |
| Threshold Development Ltd | Information & communication | 2024 |
| Thriving-Ai Ltd | Information & communication | 2019 |
| Thrivvy Ltd | Information & communication | 2025 |
| Throgmorton Consulting Ltd | Information & communication | 1994 |
| Thumbs UP Media Limited | Information & communication | 2021 |
| Thurnall Taverns Ltd | Hospitality | 2010 |
| Thus Studio Limited | Arts & recreation | 2021 |
| Thwaites Farm Holidays Ltd | Hospitality | 2023 |
| Tiacare Limited | Wholesale & retail | 2018 |
| TIC Household Ltd | Professional & scientific | 2025 |
| Tide Pharmaceuticals Ltd | Wholesale & retail | 2026 |
| Tidewave Intelligence Ltd | Information & communication | 2025 |
| Tier 1 Sports Developments Ltd | Construction | 2022 |
| Tiff Horsley Design Ltd | Administrative & support | 2007 |
| Tiger Sports Agency Limited | Wholesale & retail | 2022 |
| TIK TAK Super Shop Ltd | Wholesale & retail | 2025 |
| Tilers Tools Ltd | Wholesale & retail | 2015 |
| Tiller Consultancy Limited | Administrative & support | 2011 |
| Tiller Consulting Limited | Professional & scientific | 2025 |
| Tilltops Limited | Wholesale & retail | 2022 |
| Tillybloom Limited | Wholesale & retail | 2025 |
| TIM Allen Associates Ltd | Other services | 2008 |
| Timberline Construction Services Ltd | Construction | 2016 |
| Time for YOU - St.Helens Ltd | Administrative & support | 2019 |
| Time for YOU Warrington Ltd | Administrative & support | 2026 |
| Time for YOU Wigan Ltd | Administrative & support | 2020 |
| Time ME Original Ltd. | Wholesale & retail | 2023 |
| Time OUT Consultancy Limited | Arts & recreation | 2017 |
| Time to Swim Ltd | Education | 2024 |
| Timeless Aesthetics & Skin Clinic Ltd | Health & social care | 2025 |
| Timike Ltd | Construction | 2024 |
| Timms Solutions Limited | Real estate | 2015 |
| Timperley Consulting Ltd | Administrative & support | 2020 |
| Timstar Ltd | Wholesale & retail | 2025 |
| Timtrack Ltd | Administrative & support | 2022 |
| Tim’S Services Ltd | Wholesale & retail | 2023 |
| Tina Redford Ltd | Professional & scientific | 2024 |
| Tina's Convenience Store Ltd | Wholesale & retail | 2019 |
| Tinak Consulting Limited | Administrative & support | 2022 |
| Tindall Perry Partnership Limited | Administrative & support | 2010 |
| Tiola Future Properties Ltd | Real estate | 2023 |
| Tirol Solutions Limited | Information & communication | 2017 |
| Tisa-Uk Limited | Administrative & support | 2014 |
| Tissino Holdings Ltd | Financial services | 2021 |
| Tissino Ltd. | Manufacturing | 2013 |
| Titan Berkshire Limited | Professional & scientific | 2019 |
| Titan Bullion Ltd | Wholesale & retail | 2026 |
| Titan Gym Warrington Ltd | Arts & recreation | 2024 |
| Titan Reach Limited | Other services | 2018 |
| Titanium Trux Ltd | Transport & logistics | 2026 |
| Tixr Holdings UK Limited | Administrative & support | 2022 |
| TJ & Associates Limited | Information & communication | 2012 |
| TJ & J Projects Limited | Administrative & support | 2012 |
| TJ Mccarthy's Ltd | Administrative & support | 2019 |
| TJB Engineering Limited | Professional & scientific | 2022 |
| TJB Finance and Business Solutions Ltd | Professional & scientific | 2012 |
| TJB Investments Ltd | Real estate | 2020 |
| TJC Transport Limited | Transport & logistics | 2019 |
| TJD Ltd Enterprise Ltd | Wholesale & retail | 2026 |
| TJF Healthcare Limited | Professional & scientific | 2024 |
| TJP Aero Solutions Limited | Professional & scientific | 2018 |
| Tjpd Limited | Financial services | 2018 |
| TJW Consultants Limited | Administrative & support | 2026 |
| TK Rose Properties Ltd | Real estate | 2026 |
| TK Services Ltd | Administrative & support | 2019 |
| TKA Consultants Limited | Professional & scientific | 2019 |
| TKO Management Limited | Administrative & support | 2012 |
| TLH Surveying Services Ltd | Administrative & support | 2020 |
| TLQ Design Limited | Professional & scientific | 2024 |
| TLR (15) Limited | Professional & scientific | 2002 |
| TLS Consultancy Services Limited | Administrative & support | 2026 |
| TM Amey Consultancy Limited | Other services | 2017 |
| TM Properties (Warrington) Ltd | Real estate | 2025 |
| TM Risk Consulting (UK) Limited | Professional & scientific | 2015 |
| Tmai Limited | Professional & scientific | 2009 |
| TMB International Limited | Professional & scientific | 2023 |
| TMF & SON Construction Ltd | Construction | 2015 |
| Tmf&Dl Property Management Ltd | Households | 2025 |
| TMG Engineering Consultants Ltd | Administrative & support | 2025 |
| TMH Chemical Consultancy Ltd | Professional & scientific | 2022 |
| TMO Capital Investments Limited | Professional & scientific | 2020 |