| Trinitycc Ltd | Construction | 2022 |
| Tristar Properties Ltd | Real estate | 1999 |
| Tristem Enterprises Ltd | Professional & scientific | 2023 |
| Trmas Ltd | Information & communication | 2020 |
| Tron Tech Limited | Professional & scientific | 2007 |
| Truenorth Delivery Ltd | Information & communication | 2026 |
| Trumbles Limited | Information & communication | 2006 |
| Trust Farm Ltd | Agriculture & fishing | 2007 |
| Tucker Harvey & Associates Limited | Real estate | 1980 |
| Tucker Harvey Engineering Limited | Manufacturing | 2016 |
| Tuckwell Holdings Limited | Financial services | 2025 |
| Tuckwell Ventures Limited | Real estate | 2025 |
| Tuddys Snacks Ltd | Wholesale & retail | 2019 |
| Tunstalls of Suffolk Ltd | Transport & logistics | 2018 |
| Tural Handyman Services Ltd | Construction | 2020 |
| Turtill House Lettings Ltd | Real estate | 2025 |
| TWG Real Estate Ltd | Real estate | 2025 |
| Two Magpies Bakery (Blakeney) Limited | Manufacturing | 2021 |
| Two Magpies Bakery (Holt) Limited | Hospitality | 2021 |
| Two Magpies Bakery (Southwold) Limited | Manufacturing | 2021 |
| Two Magpies Bakery (Wells-Next-The-Sea) Ltd | Hospitality | 2023 |
| Two Magpies Bakery (Woodbridge) Limited | Manufacturing | 2022 |
| Two Magpies Bakery Limited | Hospitality | 2012 |
| Two Magpies Food Co Limited | Manufacturing | 2021 |
| Two Windmills Limited | Information & communication | 2013 |
| Twtd Multimedia Limited | Information & communication | 1999 |
| Twyford Smith Limited | Professional & scientific | 2018 |
| TYH (Holdings) Limited | Professional & scientific | 1969 |
| Tynwald 5 Limited | Health & social care | 2021 |
| Tyrrell Business Support Services Limited | Information & communication | 2006 |
| Tythe Barn Place Management Company Limited | Real estate | 1983 |
| U-Think Limited | Professional & scientific | 2024 |
| UK Babies CIC | Administrative & support | 2016 |
| UK Woodland Limited | Agriculture & fishing | 2013 |
| UKI Ceramics Limited | Wholesale & retail | 1988 |
| Unicorn Theatre Ltd | Arts & recreation | 1997 |
| Unicrest Finance Limited | Financial services | 2024 |
| Uniform Research Ltd | Wholesale & retail | 2018 |
| Unique Wine Merchants Ltd | Wholesale & retail | 2019 |
| Unireversal Ltd | Wholesale & retail | 2019 |
| Upson Electrical and Offshore Services Ltd | Professional & scientific | 2023 |
| Urbanleaf Group Limited | Administrative & support | 2025 |
| V Forklift Drivers Limited | Construction | 2016 |
| Value Stronghold Limited | Wholesale & retail | 2024 |
| Vantage Hospitality Group Ltd | Administrative & support | 2018 |
| Vantage UK Group Ltd | Financial services | 2023 |
| Vape Hound Ltd | Wholesale & retail | 2025 |
| Veezy Ltd | Wholesale & retail | 2019 |
| Velvet Homes Suffolk Ltd | Real estate | 2026 |
| Venery Limited | Manufacturing | 2002 |
| Verdesign LLP | | 2017 |
| Veritas Water Engineers Limited | Construction | 2010 |
| Vernacular & Polite Limited | Real estate | 2026 |
| Vertuous Group Limited | Professional & scientific | 2013 |
| Vetcentric Ltd | Professional & scientific | 2021 |
| Vetology Ltd | Professional & scientific | 2017 |
| VIA Integrated Systems Limited | Administrative & support | 2012 |
| Victoria Felicia Limited | Wholesale & retail | 2024 |
| Video Systems Ltd | Professional & scientific | 2006 |
| VIE Heating Ltd | Construction | 2021 |
| VIE Properties Ltd | Real estate | 2026 |
| Viking Georgeson Ltd | Professional & scientific | 2024 |
| Viking Mariners Limited | Transport & logistics | 2008 |
| Village Motorcycles Limited | Wholesale & retail | 2005 |
| Village Voices Trading Limited | Information & communication | 2018 |
| Vinegrow Ltd | Real estate | 2012 |
| Vintage Formula (Motorsport) Ltd | Wholesale & retail | 2021 |
| Vintons Buildmarque Limited | Construction | 2015 |
| Virginia Nurseries Limited | Agriculture & fishing | 2002 |
| Vision Creative Labs Limited | Information & communication | 2023 |
| Vision Goal Strategy Limited | Information & communication | 2017 |
| Vismo Studio Ltd | Professional & scientific | 2026 |
| Voke Concierge Ltd | Health & social care | 2024 |
| Volt Electrical Partners Ltd | Construction | 2020 |
| Volt Investment Holdings Ltd | Financial services | 2025 |
| VOO Sisters Ltd | Manufacturing | 2026 |
| VPP Ventures Ltd | Wholesale & retail | 2023 |
| VW Cleaning Contractors Ltd | Administrative & support | 2021 |
| Vystrel MMA Ltd | Arts & recreation | 2025 |
| W V R Limited | Professional & scientific | 1998 |
| W. Barnato Ltd | Wholesale & retail | 2016 |
| W.B.C.C. (Melton) Limited | Construction | 1984 |
| W.E.B. Nominees Limited | Extraterritorial | 2019 |
| W.J.White Estates Limited | Real estate | 1958 |
| W.M.H.P. Ltd | Construction | 2020 |
| WAJAK2 Limited | Real estate | 2026 |
| Waldringfield Estates Limited | Real estate | 2024 |
| Waldringfield Golf and Leisure Limited | Real estate | 2014 |
| Walnut Tree Services Limited | Real estate | 2003 |
| Wantisden Hall Farms Limited | Agriculture & fishing | 2020 |
| Ward & Mckenzie (NL) Limited | Extraterritorial | 2022 |
| Ward & Mckenzie (Yacht Consultants) Limited | Professional & scientific | 1997 |
| Wardlaw Solutions Limited | Administrative & support | 2008 |
| Warner Internet Services Limited | Information & communication | 2015 |
| Warrior Movement CIC | Other services | 2023 |
| Warwick Takeaway Ltd | Hospitality | 2020 |
| Water for Food Ltd | Other services | 2024 |
| Waterton Pharmacy Limited | Health & social care | 2007 |
| Waterwood Homes Limited | Construction | 2021 |
| Watson Bidco Limited | Financial services | 2025 |