| Tixall Building Co. Limited | Wholesale & retail | 1980 |
| Tixall Court Management Company Limited | Households | 1993 |
| Tixall Farming Limited | Agriculture & fishing | 2019 |
| TJ Brothers Capital Ltd | Financial services | 2026 |
| TJ Daykin Limited | Wholesale & retail | 2021 |
| TJA Creative Ltd | Professional & scientific | 2025 |
| TK & UK Consultancy Ltd | Health & social care | 2023 |
| TK Industries Ltd | Wholesale & retail | 2016 |
| Tkfb Ltd | Information & communication | 2025 |
| TKR Software QA Services Ltd | Information & communication | 2017 |
| TLM Pa-Mvr Ltd | Health & social care | 2023 |
| TMG Bolt Ltd | Wholesale & retail | 2020 |
| Tmra Limited | Other services | 2012 |
| TNT Tech Limited | Professional & scientific | 2015 |
| TNT Windows Ltd | Construction | 2013 |
| Todd Byron Ltd | Wholesale & retail | 2025 |
| Toddler Sense Stafford and Stone Limited | Education | 2017 |
| Token of Love Ltd | Arts & recreation | 2017 |
| Tollgate MOT Service Centre Limited | Wholesale & retail | 2012 |
| Tollgate Park Management Company Limited | Real estate | 2004 |
| TOM Johnson Production Lighting Limited | Arts & recreation | 2018 |
| Tomahawk Aviation & Engineering Services Ltd | Transport & logistics | 2023 |
| Tonight IS Alive Limited | Arts & recreation | 2023 |
| TONTINEHOTEL2025 Limited | Hospitality | 2025 |
| Tony’S Ices (Stafford) Ltd | Hospitality | 2022 |
| Tools Direct 2 YOU Limited | Wholesale & retail | 2013 |
| Tooting House Limited | Construction | 2025 |
| Top Benefit Schemes Limited | Administrative & support | 2010 |
| Top JOB Hand Carwash Ltd | Administrative & support | 2023 |
| Top Line International Trading Co., Limited | Manufacturing | 2024 |
| Top Media Limited | Information & communication | 2012 |
| Top PAL Ltd | Transport & logistics | 2016 |
| Topcashback (Europe) Limited | Information & communication | 2023 |
| Topcashback Group Limited | Information & communication | 2012 |
| Topcashback Limited | Information & communication | 2005 |
| Topcashback Sustainability Limited | Other services | 2024 |
| Topfour Fluid Control Limited | Extraterritorial | 2020 |
| Topline (Stafford) Limited | Manufacturing | 2008 |
| Topwell Import and Export Limited | Extraterritorial | 2014 |
| Toratron Security Systems Limited | Administrative & support | 2024 |
| Torba Property Ltd | Real estate | 2025 |
| Tori Meeley Limited | Hospitality | 2025 |
| Torwood House (Torquay) Management Company Limited | Households | 1992 |
| Total Body Orthotics Ltd | Wholesale & retail | 2019 |
| Total Security Integration Limited | Administrative & support | 2003 |
| Total Tail-Lifts Ltd | Administrative & support | 2011 |
| Totex Ltd | Administrative & support | 2015 |
| Toucan Bakes and Crafts Ltd | Wholesale & retail | 2025 |
| Touchstone Associates Limited | Administrative & support | 2006 |
| Tourgy Tourz Limited | Administrative & support | 2025 |
| Tower Lottery Partnership Holdings Limited | Financial services | 2019 |
| Town and County Scaffolding Limited | Construction | 2025 |
| Tox-Pressotechnik Limited | Wholesale & retail | 1993 |
| TPG Management Consultants Limited | Professional & scientific | 2006 |
| TPR Property Holdings Limited | Real estate | 2022 |
| Trackgo Ltd | Information & communication | 2023 |
| Traction and Rolling Stock Engineering Ltd | Manufacturing | 2025 |
| Traders Direct (ENG) Limited | Wholesale & retail | 2021 |
| Tradie Live Help Ltd | Construction | 2025 |
| Trafalgar Properties (Penkridge) Limited | Real estate | 2010 |
| Trafalgar-Europe Limited | Professional & scientific | 2023 |
| Traffic Management Design Services Ltd | Professional & scientific | 2019 |
| Train to Maintain LLP | | 2024 |
| Train With Intent Ltd | Arts & recreation | 2020 |
| Training Agendas Ltd | Professional & scientific | 2021 |
| Training Investments Ltd | Construction | 2017 |
| Training, Consultancy & Inspection Services Limited | Education | 2005 |
| Trans AMR Ltd | Transport & logistics | 2024 |
| Trans Group Kiten Ltd | Transport & logistics | 2024 |
| Transbell Ltd | Extraterritorial | 2023 |
| Transerv Europe Limited | Manufacturing | 2013 |
| Transgrid Services Limited | Construction | 2017 |
| Transmission & Distribution Management Services Ltd | Construction | 2013 |
| Traore Trade Co., Ltd | Wholesale & retail | 2023 |
| Trbde BM Ltd | Financial services | 2023 |
| Trbdebllied Ltd | Financial services | 2021 |
| Treasure Zhou Limited | Wholesale & retail | 2024 |
| Treat Boxes Limited | Hospitality | 2023 |
| Treat UK Hospitality Co., Ltd | Wholesale & retail | 2022 |
| Treataction Consultancy Ltd | Professional & scientific | 2019 |
| Trebarwith Consulting Limited | Professional & scientific | 2022 |
| Trebor Trading Limited | Real estate | 2018 |
| Trebuchet Holdings (UK) Limited | Financial services | 2026 |
| Trebuchet Investments (UK) Limited | Financial services | 2016 |
| Trebuchet Secure Group Limited | Financial services | 2023 |
| Tremor Acoustics Limited | Arts & recreation | 2015 |
| Trenance Investments Limited | Real estate | 2019 |
| Trend Pubs Ltd | Hospitality | 2017 |
| Trend SET Go Ltd | Wholesale & retail | 2023 |
| Trendinsight Digital Connection Co., Limited | Information & communication | 2021 |
| Trendira & Arvell Ltd | Wholesale & retail | 2024 |
| Trent Court (Colwich) Management Limited | Administrative & support | 1997 |
| Trentham House Properties Ltd | Real estate | 2026 |
| Trentview PUB Company Limited | Hospitality | 2026 |
| Trevillian LLP | | 2009 |
| TRH Transport Services Limited | Wholesale & retail | 2026 |
| Trident Steel (Reinforcements) Limited | Manufacturing | 1991 |
| Trigon Packaging Ltd | Manufacturing | 2013 |
| Trimotor Limited | Wholesale & retail | 2020 |
| Trinity Care House Limited | Health & social care | 2026 |