| Tedstone Holdings Limited | Financial services | 2017 |
| Tedstone Trustee Limited | Administrative & support | 2021 |
| TEE & MO Ltd | Wholesale & retail | 2023 |
| TEE Time Ticket Comps Ltd | Arts & recreation | 2025 |
| Tee-Pow Natural Cosmetics Ltd | Other services | 2019 |
| Teedee Music Limited | Arts & recreation | 2026 |
| Teejosh Limited | Professional & scientific | 2026 |
| Teek Properties Ltd | Real estate | 2021 |
| Teekay Accountants and Tax Consultants Ltd | Professional & scientific | 2024 |
| Teeman Collective Ltd | Professional & scientific | 2018 |
| Tees Grange Health Care Limited | Health & social care | 2022 |
| Teesplusjays Logistics Limited | Transport & logistics | 2025 |
| Teesside PUB Management Limited | Administrative & support | 2025 |
| Teeth and Tongue Limited | Health & social care | 2021 |
| Teewon Logistics Ltd Ltd | Transport & logistics | 2025 |
| TEF Transport Limited | Transport & logistics | 1973 |
| Tefl Universal Ltd | Administrative & support | 2020 |
| Tegdev Services Ltd | Construction | 2016 |
| Teio Business Developments Ltd | Information & communication | 2026 |
| TEK Consultancy Limited | Professional & scientific | 2018 |
| Tekerz Ltd | Education | 2023 |
| Tekfabs Limited | Professional & scientific | 2015 |
| Tekhub Consult Ltd | Information & communication | 2021 |
| Tekie Autos Ltd | Wholesale & retail | 2019 |
| Tekkers Gymnastics Ltd | Hospitality | 2023 |
| Tekkers Leisure Limited | Arts & recreation | 2020 |
| Teklofts Limited | Wholesale & retail | 2026 |
| Tel-X Ltd | Information & communication | 2026 |
| Telecommunications International Agencies Ltd | Information & communication | 2018 |
| Telefonia Ltd | Wholesale & retail | 2025 |
| Telematech Limited | Information & communication | 2020 |
| Telepart Ltd | Manufacturing | 2025 |
| Teleway Limited | Information & communication | 2007 |
| Tell Tale Hearts Limited | Arts & recreation | 2008 |
| Telmus 4 Limited | Health & social care | 2024 |
| TEM Capital Properties Ltd | Hospitality | 2025 |
| Temmy Foods Ltd | Hospitality | 2026 |
| Temperature Control Equipment Limited | Manufacturing | 2010 |
| Tempered Monkey Ltd | Information & communication | 2011 |
| Tempered Works Ltd | Information & communication | 2018 |
| Tempest Hospitality Ltd | Hospitality | 2025 |
| Tempete Ltd | Other services | 2010 |
| Templar Merchandising Ltd | Manufacturing | 2024 |
| Temple Chambers London Limited | Information & communication | 2023 |
| Temple Consultants Limited | Professional & scientific | 2006 |
| Temple Safety Ltd | Administrative & support | 2005 |
| Templebrough NO 3 Limited | Real estate | 2014 |
| Templecroft Investments One Limited | Real estate | 2019 |
| Templecroft Investments Three Limited | Real estate | 2023 |
| Templecroft Investments Two Limited | Water & waste | 2013 |
| Templemount Limited | Real estate | 2014 |
| Templicity Ltd | Professional & scientific | 2012 |
| Templum Advisory Limited | Administrative & support | 2025 |
| Tempo Burnley Two Limited | Information & communication | 2023 |
| Tempo Entertainment Limited | Information & communication | 2013 |
| Temprol Enterprise Carnforth Ltd | Hospitality | 2024 |
| Tems Plumbing and Heating Limited | Construction | 2026 |
| TEN 10 Property Ltd | Real estate | 2021 |
| TEN Pounds Training Ltd | Arts & recreation | 2023 |
| TEN Years Gone Limited | Administrative & support | 2016 |
| TEN24 Media Ltd | Information & communication | 2011 |
| Tenacious Pubs Ltd | Hospitality | 2025 |
| Tenacity Collective Community Interest Company | Professional & scientific | 2026 |
| Tenacity Consulting Service Ltd | Health & social care | 2016 |
| Tenacity IT Ltd | Information & communication | 2021 |
| Tenancy Guarantor Ltd | Other services | 2025 |
| Tenant Manager Limited | Real estate | 2017 |
| Tenaya Wine Ltd | Wholesale & retail | 2022 |
| Tendobar Limited | Manufacturing | 2022 |
| Tenfiftyonebars Ltd | Hospitality | 2019 |
| Tengyuan Media Ltd | Professional & scientific | 2025 |
| Tenon Partition Systems Limited | Extraterritorial | 1992 |
| Tenpro Limited | Information & communication | 2015 |
| TEO Wyld Holdings Ltd | Real estate | 2024 |
| Teoda Ltd | Real estate | 2019 |
| Teolifboon Limited | Health & social care | 2020 |
| TEP Investment Holdings Ltd | Real estate | 2026 |
| Tepn Medicare Limited | Health & social care | 2014 |
| Teqtool Ltd | Wholesale & retail | 2023 |
| Terabithia Ltd | Professional & scientific | 2018 |
| Teresaco Limited | Other services | 2025 |
| Terminus Tavern Limited | Hospitality | 2019 |
| Terra Ultima Limited | Administrative & support | 2025 |
| Terrace Four Limited | Administrative & support | 2009 |
| Terramove Solutions Ltd | Transport & logistics | 2025 |
| Terrible Lizard Productions Ltd | Information & communication | 2022 |
| Terry Bargains Ltd | Wholesale & retail | 2022 |
| Terry's Furniture Ltd | Wholesale & retail | 2022 |
| Teruk Limited | Health & social care | 2019 |
| Tery&Sons Ltd | Administrative & support | 2017 |
| TES Acquisition Limited | Financial services | 2018 |
| TES Education Resources Limited | Information & communication | 2014 |
| TES Finance Limited | Professional & scientific | 2014 |
| TES Global Finance Limited | Financial services | 2018 |
| TES Global Group Limited | Professional & scientific | 2013 |
| TES Global Holdings Limited | Professional & scientific | 2007 |
| TES Global Limited | Information & communication | 1986 |
| TES Global Services Limited | Administrative & support | 2017 |
| TES Institute Limited | Education | 2011 |
| TES Midco Limited | Financial services | 2018 |