| Tabster Holdings Ltd | Financial services | 2024 |
| Tacolneston Estates Limited | Real estate | 2006 |
| Tade Holdings Limited | Administrative & support | 2018 |
| Tailored Building East Anglia Limited | Construction | 2019 |
| Tami Collins Interiors Ltd | Professional & scientific | 2022 |
| Tandm Property Developments (Norfolk) Limited | Construction | 2021 |
| TAS Valley Fire Protection Services Limited | Manufacturing | 2007 |
| Taskers Property Limited | Real estate | 2025 |
| Taskers Trading Limited | Professional & scientific | 2015 |
| Taurus Bronze Ltd | Arts & recreation | 2021 |
| Taylor Long 2008 Limited | Professional & scientific | 2008 |
| Taylor Swann Property Ltd | Real estate | 2022 |
| TD Racing Services Limited | Professional & scientific | 2016 |
| Team Lotus Limited | Other services | 1981 |
| Temple Energy Consultancy Ltd | Professional & scientific | 2021 |
| Temple Property Corporation Ltd | Real estate | 2023 |
| Terra Properties (Hackford) Limited | Real estate | 1995 |
| THE BAG Club Limited | Arts & recreation | 2025 |
| THE Besom in Norwich | Other services | 2007 |
| THE Bigger Picture (EM) Ltd | Arts & recreation | 2016 |
| THE Biomass HUT Ltd | Wholesale & retail | 2014 |
| THE Black Thorn Tattoo Studio Ltd | Arts & recreation | 2025 |
| THE Cat House Ltd | Hospitality | 2023 |
| THE Cedar Room Holdings Ltd | Financial services | 2024 |
| THE Crown Motorsport Performance Ltd | Wholesale & retail | 2023 |
| THE Dales Pony Society | Information & communication | 1998 |
| THE Demolition & Asbestos Company Ltd | Extraterritorial | 2022 |
| THE Demolition & Scaffolding Company Ltd | Extraterritorial | 2022 |
| THE Games Shed Ltd | Information & communication | 2025 |
| THE Gentleman Barber Ltd | Other services | 2019 |
| THE Golden Blossom Chinese Food UK Ltd | Hospitality | 2019 |
| THE Grange Leverton Limited | Other services | 2013 |
| THE Happy Book Company Ltd | Information & communication | 2018 |
| THE IC Hub Ltd | Professional & scientific | 2023 |
| THE ICT Guys Limited | Information & communication | 2014 |
| THE Late Night Library CIC | Health & social care | 2025 |
| THE Littlest Bite Ltd | Manufacturing | 2025 |
| THE Loftman Company EA Ltd | Construction | 2020 |
| THE Moral Investor Ltd | Real estate | 2017 |
| THE Music Cottage Ltd | Wholesale & retail | 2026 |
| THE Only Child Club Ltd | Arts & recreation | 2025 |
| THE Orange Grove Clinic Ltd | Other services | 2022 |
| THE Orangery Tea Room Norfolk Limited | Hospitality | 2019 |
| THE Original BIT Limited | Information & communication | 2018 |
| THE People Switch Ltd | Professional & scientific | 2022 |
| THE Royal Standard Limited | Hospitality | 2025 |
| THE Sash Window and Door Company Norfolk Ltd | Construction | 2023 |
| THE Start Studio Collaboration CIC | Education | 2026 |
| THE Tasting Quarter Ltd | Other services | 2002 |
| THE Technology Centre (Europe) Limited | Information & communication | 2003 |
| THE Tracing Group Limited | Information & communication | 2017 |
| THE UK Waltons Ltd | Real estate | 2017 |
| THE Wine Adventure Ltd | Extraterritorial | 2011 |
| THE Wren Cat Hotel Ltd | Agriculture & fishing | 2025 |
| Thegold&Co. Ltd | Information & communication | 2024 |
| Think Digital Marketing Ltd | Professional & scientific | 2020 |
| Thircon Limited | Manufacturing | 1903 |
| Third Place Consultancy Ltd | Financial services | 2020 |
| Thix Limited | Other services | 2021 |
| TIM Butler Ltd | Construction | 2023 |
| Titan Media Group Ltd | Information & communication | 2015 |
| TJ Innovations (East Anglia) Limited | Manufacturing | 2020 |
| TN Toast Ltd | Hospitality | 2023 |
| TNT Recruitment Ltd | Administrative & support | 2024 |
| Toby Developments Limited | Households | 2014 |
| TOM Woods Landscaping and Construction Limited | Construction | 2025 |
| Ton-Khaw Co., Ltd | Hospitality | 2017 |
| Topdealznorfolk Ltd | Wholesale & retail | 2026 |
| Total Windscreen Solutions Limited | Wholesale & retail | 2025 |
| Totally Turkish Ltd | Wholesale & retail | 2020 |
| Town Close Limited | Administrative & support | 1965 |
| Town Green Consultants Limited | Professional & scientific | 1998 |
| Trackside Digital Limited | Information & communication | 2005 |
| Training Record Ltd | Other services | 2022 |
| Tribe Design & Construction Ltd | Construction | 2024 |
| Tribe Therapy Services Ltd | Health & social care | 2025 |
| Trinity Axis Private Limited | Other services | 2017 |
| True Intel Ltd | Professional & scientific | 2026 |
| Trusted Law Ltd | Professional & scientific | 2022 |
| Tuneable Community Interest Company | Information & communication | 2025 |
| Twyg Ltd | Manufacturing | 2022 |
| Uavair Ltd | Professional & scientific | 2023 |
| UK Insurance Services Ltd | Financial services | 2022 |
| Ulgen Terzi Ltd | Other services | 2020 |
| Ultimate Salons Limited | Other services | 2015 |
| United Business & Leisure (Properties) Limited | Real estate | 2005 |
| United Business & Leisure (Roundwood) Limited | Construction | 2006 |
| United Business & Leisure Limited | Real estate | 1997 |
| Uniti Technology Limited | Professional & scientific | 2025 |
| Upper King Street Limited | Extraterritorial | 2005 |
| Vaages Surveying Ltd | Professional & scientific | 2010 |
| Valencia Homes Limited | Construction | 2005 |
| Value Bike Centre Limited | Wholesale & retail | 2010 |
| Vantage Financial Planning Limited | Financial services | 2013 |
| Vape Industries Limited | Other services | 2015 |
| Vectornorth Ltd | Wholesale & retail | 2023 |
| Velition Ltd | Information & communication | 2019 |
| Vello Limited | Construction | 2012 |
| Viking Management Services Limited | Financial services | 1979 |
| Village People Magazines Limited | Information & communication | 2011 |