| TCM Group Holdings Limited | Financial services | 2024 |
| TCS Art Ltd | Manufacturing | 2025 |
| TCS Online Ltd | Manufacturing | 2022 |
| TD Exterior Cleaning (Domestic & Commercial) Ltd | Administrative & support | 2024 |
| TDE Group Ltd | Professional & scientific | 2025 |
| Team Tuition Ltd | Education | 2013 |
| Teampoint Software Ltd | Information & communication | 2019 |
| Tech Home Fusion Ltd | Wholesale & retail | 2025 |
| Techmould Limited | Manufacturing | 1980 |
| Techne Web Design Ltd | Information & communication | 2015 |
| Techni Engineering Limited | Manufacturing | 2014 |
| Techni Limited | Manufacturing | 2005 |
| Techni Systems Limited | Professional & scientific | 2024 |
| Technical Service Holdings Ltd | Professional & scientific | 2023 |
| Technical Services (Shropshire) Limited | Administrative & support | 1997 |
| Technicel Limited | Wholesale & retail | 2011 |
| Techohana Ltd | Professional & scientific | 2020 |
| Techwithnolimits C.I.C. | Information & communication | 2018 |
| Teddesley Leisure Limited | Wholesale & retail | 1974 |
| Tedsmore Grange Limited | Real estate | 2016 |
| Tegco Immingham Ltd | Professional & scientific | 2019 |
| Tegco Limited | Professional & scientific | 2019 |
| Teign View (Kingsteignton) Management Limited | Real estate | 2019 |
| Teiss Limited | Administrative & support | 2019 |
| Teknoson Ltd. | Manufacturing | 1995 |
| Telford Direct Cremations Limited | Other services | 2025 |
| Telford Enterprise Consortium Limited | Real estate | 1990 |
| Telford House Property Services Limited | Real estate | 1995 |
| Telford Maintenance Limited | Construction | 2013 |
| Telford Motors Limited | Wholesale & retail | 2000 |
| Telford Paint and Body Ltd | Wholesale & retail | 2018 |
| Telford Pickleball Club Ltd | Arts & recreation | 2023 |
| Telford Property Ltd | Real estate | 2016 |
| Telford Toilet Hire Ltd | Water & waste | 2026 |
| Teme Vale Victuallers Limited | Manufacturing | 2000 |
| Templar Court (Essex Road) Management Company Limited | Households | 1995 |
| Templeton Jones Retail Limited | Wholesale & retail | 2023 |
| TEN & SIX Limited | Wholesale & retail | 2025 |
| TEN CC LLP | | 2009 |
| Tenrec Studios Ltd | Wholesale & retail | 2023 |
| Tenths Distribution Limited | Wholesale & retail | 2019 |
| Tents and Marquees Limited | Administrative & support | 2007 |
| Tenzing Properties Ltd | Construction | 2004 |
| Termsol Limited | Households | 1990 |
| Tern Consultancy Limited | Information & communication | 2008 |
| Tern Valley Business Park Management Company Limited | Administrative & support | 2021 |
| Terrain Landscape Consultants Ltd. | Professional & scientific | 2022 |
| Terrence LEE Conservation Limited | Construction | 2023 |
| Tessello Rise ( ST Ives ) Management Limited | Real estate | 2021 |
| Tewkesbury TS Limited | Hospitality | 2013 |
| TFM Property Limited | Real estate | 2012 |
| TFN Landscapes Limited | Administrative & support | 2003 |
| TG Skills Ltd | Education | 2024 |
| TH3RD Limited | Information & communication | 2021 |
| Thai D Food Bar LLP | | 2019 |
| Thaibridge International Ltd | Education | 2026 |
| That Therapy GUY Limited | Other services | 2025 |
| THE 12TH MAN Retro Limited | Wholesale & retail | 2024 |
| THE 1800 Women's Workout Ltd | Arts & recreation | 2016 |
| THE 3-18 Education Trust | Education | 2012 |
| THE 99% Organisation Ltd | Information & communication | 2019 |
| THE Aberdovey Sweet Shop Management Co. Limited | Households | 2005 |
| THE Affordable Fine Art Gallery Limited | Wholesale & retail | 2019 |
| THE American Sticky BUN Company LLP | | 2001 |
| THE Amrose Group Ltd | Information & communication | 2026 |
| THE Animal Family Ltd | Hospitality | 2023 |
| THE Animal Rescue ARK (T.A.R.A) Limited | Agriculture & fishing | 2024 |
| THE Arrow Views Management Company Limited | Households | 2008 |
| THE Ashtree Collection Limited | Wholesale & retail | 2018 |
| THE Atrium (Lytham ST Annes) Management Company Limited | Households | 2017 |
| THE Auction Partnership Ltd | Real estate | 2026 |
| THE AXE Factor Ltd | Arts & recreation | 2024 |
| THE Bank Swan Hill Limited | Households | 2003 |
| THE Bayou Lounge Ltd | Hospitality | 2025 |
| THE Bear Creative Limited | Arts & recreation | 2012 |
| THE Beauty Lounge Shrewsbury LLP | | 2010 |
| THE BED Consultant Limited | Information & communication | 2024 |
| THE Bedford Park Post Production Company Limited | Arts & recreation | 1990 |
| THE Beeches (Ellesmere Port) Management Limited | Households | 2007 |
| THE Beekeeper Collection Ltd | Manufacturing | 2024 |
| THE Beginners Club Ltd | Wholesale & retail | 2022 |
| THE Birmingham Dog Show Society Limited | Other services | 2001 |
| THE Breidden Ltd | Hospitality | 2023 |
| THE Brewery Management Company Ltd | Households | 2000 |
| THE British Antique Furniture Restorers' Association Limited | Administrative & support | 2005 |
| THE Bzzz Ltd | Administrative & support | 2024 |
| THE Cambridge Tableware Company Limited | Wholesale & retail | 2013 |
| THE Camouflage Company UK Limited | Wholesale & retail | 2003 |
| THE Camporium Ltd | Wholesale & retail | 2025 |
| THE Carriage Works (Dogpole) Management Limited | Households | 2005 |
| THE Catnap Suite Limited | Hospitality | 2025 |
| THE Celtic Walking Company Ltd | Administrative & support | 2022 |
| THE Centering Ltd | Health & social care | 2026 |
| THE Central Garage Church Stretton Limited | Wholesale & retail | 2020 |
| THE Chapel Collection Ltd | Extraterritorial | 2008 |
| THE Chapel on Castle Hill Limited | Other services | 2019 |
| THE Chase (Skegness) Limited | Households | 2006 |
| THE Cheese Wedge Company Limited | Hospitality | 2017 |
| THE Chestnuts (Pype Hayes) Management Limited | Households | 2005 |
| THE Chestnuts (Wellington) Management Company Limited | Households | 2003 |