| TICA92 Limited | Transport & logistics | 2018 |
| Tides (QMS) Ltd | Professional & scientific | 2010 |
| Tier Systems Limited | Information & communication | 2024 |
| Tiger Martial Arts Somerset Ltd | Education | 2022 |
| Tiger Property Solutions Limited | Real estate | 2004 |
| Titan Stonemasons Limited | Construction | 2012 |
| TMG Products Ltd | Wholesale & retail | 2018 |
| Toast Property Investments Limited | Real estate | 2021 |
| Toby Ingram Ltd | Professional & scientific | 2011 |
| TOJ Water Treatment Ltd | Construction | 2024 |
| Told by Them Ltd | Professional & scientific | 2024 |
| TOM Evans Associates Ltd | Professional & scientific | 2025 |
| TOM Hull Photography Ltd | Professional & scientific | 2014 |
| TOM Street & Co. Solicitors Limited | Professional & scientific | 2011 |
| Tomarq Media Limited | Information & communication | 2005 |
| Tom’S Studio Ltd | Wholesale & retail | 2021 |
| Tony's Cabs Ltd | Transport & logistics | 2015 |
| Tony's Ice Creams Ltd | Hospitality | 2016 |
| Tool & Gauge Cafe Limited | Hospitality | 2018 |
| Top JOB Building & Maintenance Ltd | Construction | 2016 |
| Topglobe UK Ltd | Wholesale & retail | 2021 |
| Total Foot Care Limited | Agriculture & fishing | 2014 |
| Total Training Solutions Ltd | Professional & scientific | 2017 |
| Total Training Solutions South West Limited | Professional & scientific | 2004 |
| Tower Hill Developments Ltd | Administrative & support | 2016 |
| Tower Hill Lettings Ltd | Real estate | 2017 |
| Track Clinic Limited | Health & social care | 2018 |
| Trackhat Ltd. | Manufacturing | 2015 |
| Trackmaps Limited | Professional & scientific | 2000 |
| Trade Price Conservatories (UK) Limited | Construction | 2004 |
| Travis + Travis Limited | Wholesale & retail | 2014 |
| Tree Love Lights Limited | Information & communication | 2014 |
| Treecycle Arborists Limited | Arts & recreation | 2021 |
| Treehouse Project Management Ltd | Real estate | 2011 |
| Tri.Art Productions Ltd | Arts & recreation | 2026 |
| Triangle Building Limited | Construction | 2018 |
| Trigonom Ltd | Professional & scientific | 2004 |
| Trilon Limited | Administrative & support | 2003 |
| Trinergy Solutions Limited | Construction | 2024 |
| Trinity Court (1993) Trowbridge Limited | Households | 1993 |
| Trmmh Property Limited | Real estate | 2018 |
| Trojan Construction and Maintenance Ltd | Construction | 2010 |
| Tropiculture Limited | Administrative & support | 2014 |
| Truck Trailer & Plant Ltd | Wholesale & retail | 2025 |
| True Brawn Movement Ltd | Other services | 2019 |
| Truthworks Limited | Professional & scientific | 2016 |
| Tsiolkovsky Solutions Ltd | Professional & scientific | 2008 |
| Turner’S Machine Shop Ltd | Professional & scientific | 2020 |
| Turning Turtles Ltd | Education | 2020 |
| TV Production Consultancy & Management Limited | Information & communication | 2017 |
| Twentyfifty International Ltd | Financial services | 2019 |
| Twentyfifty Limited | Professional & scientific | 2004 |
| Twfs (Frome) Ltd | Manufacturing | 2026 |
| Two Minds Ltd | Professional & scientific | 2025 |
| Tyresmoke CPP Limited | Wholesale & retail | 2002 |
| Tythe Farm Holdings Limited | Agriculture & fishing | 2010 |
| U.K. Physiotherapy Services Limited | Health & social care | 2003 |
| Ultra Solutions Group Limited | Construction | 2025 |
| Umbra Organics Ltd | Wholesale & retail | 2022 |
| Unique Fascia Boards & Guttering Ltd | Construction | 2014 |
| Unity Power Lighting Ltd | Information & communication | 2019 |
| Universal Gifts Ltd | Manufacturing | 2026 |
| Unlock NRG Ltd | Professional & scientific | 2026 |
| Urban Rooms (Bristol) Ltd | Real estate | 2022 |
| Valesco Properties Limited | Real estate | 2024 |
| Valletta Surfacing Limited | Construction | 1981 |
| Vallis Advisory Limited | Professional & scientific | 2025 |
| Vallis Architecture Ltd | Professional & scientific | 2018 |
| Vallis Court Management Limited | Households | 1990 |
| Vallis Farm Education Centre CIC | Education | 2026 |
| Vallis Farms Ltd | Education | 2020 |
| Vallis Group Limited | Financial services | 2020 |
| Vallis International Limited | Transport & logistics | 2025 |
| Vallis Services Limited | Transport & logistics | 2020 |
| Value Creation Company Limited | Professional & scientific | 1994 |
| Van Customs Ltd | Wholesale & retail | 2020 |
| Vantage Customs Ltd | Wholesale & retail | 2016 |
| Vapour-It Ltd. | Wholesale & retail | 2022 |
| Varatara Limited | Wholesale & retail | 2017 |
| Velan Frome Ltd | Hospitality | 2024 |
| Velara Holdings Limited | Financial services | 2025 |
| Verdis Consultancy Ltd | Extraterritorial | 2022 |
| Verity FOX Limited | Other services | 2023 |
| Verity Standen Projects Ltd | Arts & recreation | 2016 |
| Vicki Garrett Transport Ltd | Transport & logistics | 2018 |
| Victoria Court Management (Frome) Company Limited | Households | 1993 |
| Victoria Mews (Frome) Management Company Limited | Households | 2022 |
| Victoria Mews Flats Management Company Limited | Households | 2025 |
| Video Spot Limited | Hospitality | 2026 |
| Viewmetrics Ltd | Information & communication | 2026 |
| Vigneti Tardis UK Ltd | Wholesale & retail | 2017 |
| Vinozero Ltd | Wholesale & retail | 2024 |
| Vintage Mobile Disco Limited | Arts & recreation | 2015 |
| Vinylution Limited | Wholesale & retail | 2017 |
| Vobster Guest House & Glamping Ltd | Hospitality | 2025 |
| Vobstock Limited | Extraterritorial | 2013 |
| Vogta Limited | Information & communication | 2019 |
| VQ Communications Ltd | Administrative & support | 2004 |
| W.J. Masters & Sons Limited | Agriculture & fishing | 1964 |
| W.J.Trotman(Builders)Limited | Construction | 1964 |