| Td&H Property Holdings Ltd | Real estate | 2020 |
| Tea India Ltd | Manufacturing | 2012 |
| Teague Carpentry Limited | Construction | 2021 |
| Team Business Development Limited | Professional & scientific | 2007 |
| Tecarus Ltd | Information & communication | 2021 |
| Tech Equity Ltd | Information & communication | 2012 |
| Tech Housing Ltd | Real estate | 2021 |
| Tech Leader 4 Hire Limited | Information & communication | 2024 |
| Tech RS Direct Limited | Information & communication | 2026 |
| Tech Wing Solutions Limited | Information & communication | 2024 |
| Techni KUL Ltd | Information & communication | 2020 |
| Technical GAS Training Limited | Education | 2007 |
| Technical Window Films Limited | Administrative & support | 2015 |
| Technology Maestro Ltd | Professional & scientific | 2015 |
| Techplan Consultants Limited | Information & communication | 1998 |
| Tecplar Limited | Manufacturing | 1981 |
| TED E Bush Limited | Transport & logistics | 2004 |
| Tees Vets Limited | Professional & scientific | 2012 |
| TEK Advisory Limited | Information & communication | 2017 |
| TEK Optima Research Ltd | Manufacturing | 2019 |
| TEK2U Limited | Wholesale & retail | 2023 |
| Teknik Consulting Limited | Information & communication | 2022 |
| Teksoft Ltd | Information & communication | 2019 |
| Telcosecure Ltd | Manufacturing | 2026 |
| Telephone Road Ltd | Real estate | 2016 |
| Teleserv IT Ltd | Information & communication | 2023 |
| Telex-Net Limited | Administrative & support | 1995 |
| Telfoni Ltd | Information & communication | 2010 |
| Teliaspace Ltd | Information & communication | 2023 |
| Tempesta Digital Limited | Information & communication | 2018 |
| Tempus Holt Group Ltd | Financial services | 2026 |
| Tempus Planning & Controls Limited | Professional & scientific | 2020 |
| TEN Bottles Ltd | Hospitality | 2021 |
| Tender-Hearted Limited | Administrative & support | 2017 |
| Tenkia Ltd | Professional & scientific | 2020 |
| Tensor Technologies Limited | Information & communication | 2023 |
| Teracode Development Services Limited | Information & communication | 2025 |
| Terminator Control Limited | Administrative & support | 2002 |
| Terra-Uk Ltd | Administrative & support | 2024 |
| Terrafirma TWD Limited | Construction | 2025 |
| Terranest Limited | Real estate | 2023 |
| Terry Case Carpet Contracts Limited | Construction | 2010 |
| Terry Gooding & SON Ltd | Construction | 2020 |
| Testnest Limited | Information & communication | 2026 |
| TF Property Group Ltd | Real estate | 2018 |
| TGH Consultancy Limited | Information & communication | 2025 |
| Thamanna K Consulting Ltd | Information & communication | 2012 |
| Thames Consulting Limited | Professional & scientific | 2024 |
| THE 3 Utilities Ltd | Other services | 2019 |
| THE Academy of Medical Aesthetics Ltd | Health & social care | 2025 |
| THE Affinity Professional Services Group Limited | Financial services | 2015 |
| THE Analyst Exchange Consulting Group Ltd | Information & communication | 2022 |
| THE App Engineers Limited | Information & communication | 2011 |
| THE BA Buddy Ltd | Professional & scientific | 2022 |
| THE Badbury Group Limited | Construction | 2020 |
| THE Barn Equine Surgery Limited | Professional & scientific | 2008 |
| THE Barns at Henbury Ltd | Households | 2020 |
| THE Beauty of Electronics Limited | Information & communication | 2022 |
| THE Book & Bucket Cheese Company Ltd | Manufacturing | 2018 |
| THE Botanical Candle Company Ltd | Wholesale & retail | 2018 |
| THE Bridal Archive Ltd | Wholesale & retail | 2025 |
| THE Bridge House Project Ltd | Health & social care | 2005 |
| THE Burrows at Foxhole Management Company Limited | Households | 2022 |
| THE Business Garden Ltd | Professional & scientific | 2013 |
| THE Business Narrative Limited | Professional & scientific | 2012 |
| THE Car Camper Co Limited | Extraterritorial | 2021 |
| THE CEO Works Ltd | Professional & scientific | 2023 |
| THE Change Business Ltd | Information & communication | 2023 |
| THE Change Curve Limited | Professional & scientific | 2024 |
| THE Change Universe Limited | Professional & scientific | 2017 |
| THE Cheeky Brief Company Limited | Wholesale & retail | 2025 |
| THE Clinical Trichologist Ltd | Health & social care | 2026 |
| THE Coaching Experience Limited | Administrative & support | 2014 |
| THE Coaching HUT Ltd | Information & communication | 2025 |
| THE Coastal Exterior Company Ltd | Administrative & support | 2026 |
| THE Coffee 2U Co Limited | Hospitality | 2016 |
| THE Colour Works International Limited | Professional & scientific | 2003 |
| THE Compendium Press Ltd | Education | 2026 |
| THE Content Forge Ltd | Information & communication | 2023 |
| THE Creative Cove Limited | Professional & scientific | 2024 |
| THE Creative Voiceover Ltd | Information & communication | 2014 |
| THE Crescent (Brimsmore) Management Company Limited | Households | 2016 |
| THE Data Studio Ltd | Information & communication | 2012 |
| THE Digital Acorn Services Ltd | Information & communication | 2018 |
| THE Dorset Goat Meat Company Ltd | Agriculture & fishing | 2018 |
| THE Dorset Host Ltd. | Information & communication | 2023 |
| THE Dorset Tree Shepherd Ltd. | Manufacturing | 2011 |
| THE Drain Team (Dorset) Limited | Water & waste | 2010 |
| THE EAR Waxinator Ltd | Health & social care | 2023 |
| THE Eco Monkey Ltd | Administrative & support | 2020 |
| THE Education & Assessment Consultancy Ltd | Education | 2026 |
| THE Ember BBQ Co Ltd | Wholesale & retail | 2026 |
| THE Environment and Consents Consultancy Limited | Professional & scientific | 2021 |
| THE Essential PMO Limited | Professional & scientific | 2013 |
| THE European Envelope Company Limited | Manufacturing | 2004 |
| THE Fireplace Room Limited | Construction | 2004 |
| THE First AID Industry Body 2018 Limited | Other services | 2018 |
| THE First AID Industry Body Limited | Extraterritorial | 2012 |
| THE Flat Roofing Company Holdings Ltd | Financial services | 2026 |
| THE Football Network Limited | Arts & recreation | 2021 |