| Tony Thorpe Associates Limited | Professional & scientific | 2002 |
| Town & Country Printers Limited | Manufacturing | 2004 |
| Tpsm Properties Limited | Real estate | 2024 |
| Trattoria Rustica Limited | Administrative & support | 2003 |
| Treecare Consultants Limited | Professional & scientific | 2005 |
| Tri-Coaching Partnership Limited | Other services | 2011 |
| Trident Marine Electrical Ltd | Manufacturing | 2020 |
| Trinity Wiring Limited | Manufacturing | 2004 |
| Tropic Coffee Limited | Manufacturing | 1982 |
| Trott Developments Limited | Real estate | 1987 |
| Trott Rentals Limited | Extraterritorial | 2002 |
| Trouton Bricks Limited | Construction | 2006 |
| Trox UK Limited | Manufacturing | 1962 |
| Troy Build Works Limited | Construction | 2023 |
| TS Watling Commercials Limited | Construction | 2003 |
| Tswc Group Ltd | Health & social care | 2004 |
| Tuesday Market Practice Ltd | Health & social care | 2005 |
| Tyres Plus Limited | Wholesale & retail | 2002 |
| Tyres(King's Lynn)Limited | Wholesale & retail | 1966 |
| Ubique Services Limited | Administrative & support | 2001 |
| UK Blinds (Norwich) Limited | Wholesale & retail | 2003 |
| UK Interiors Limited | Construction | 2003 |
| UK Rural Skills Ltd | Education | 2014 |
| UK Water Treatment Systems PLC | | 1989 |
| Ultimate Workforce Limited | Transport & logistics | 2006 |
| Undercover (GB) Limited | Manufacturing | 2002 |
| Unique Wares Limited | Manufacturing | 2007 |
| United Equipment Sales Limited | Wholesale & retail | 2017 |
| Unum Capital Limited | Professional & scientific | 2025 |
| Upstream Data Solutions Limited | Information & communication | 2003 |
| Van Tubergen UK Limited | Wholesale & retail | 2003 |
| Vancouver Limited Partnership | | 2006 |
| Vanilla Studio Ltd | Other services | 2007 |
| Varan Commercial Properties Ltd | Real estate | 2025 |
| Varan Properties Ltd | Real estate | 2022 |
| Vasco Consultancy Limited | Administrative & support | 2007 |
| Vastion Limited | Real estate | 2002 |
| Vehicle Engineering Consultants Ltd | Professional & scientific | 1997 |
| Virello Estates Ltd | Real estate | 2026 |
| Virgo GK Ltd | Transport & logistics | 2012 |
| Visarule Limited | Professional & scientific | 1991 |
| Vulcan Motor Company Limited | Wholesale & retail | 2003 |
| W R M Services Ltd | Construction | 2007 |
| W.C. Littleproud & SON Ltd | Other services | 2003 |
| W.J. Marine Analytical Services Limited | Manufacturing | 1978 |
| W.J.F.Ross Limited | Agriculture & fishing | 1956 |
| W.Lanham & Sons Limited | Agriculture & fishing | 1961 |
| Wall Engineering Company Limited(The) | Manufacturing | 1949 |
| Walsingham College (Yorkshire Properties) Limited | Education | 1947 |
| Walsingham Trust | Other services | 2018 |
| Warp Bahia 1 Limited | Agriculture & fishing | 2007 |
| Warp Bahia 2 Limited | Extraterritorial | 2007 |
| Waterloo Apartments Ltd | Real estate | 2022 |
| Watlington Farms Limited | Administrative & support | 1978 |
| Wavelength Films Limited | Information & communication | 2002 |
| Wealth Protection International Limited | Other services | 2004 |
| Web Services (Anglia) Limited | Information & communication | 2003 |
| Websters Technical Services Limited | Other services | 2003 |
| Weener Plastics Norwich Ltd. | Manufacturing | 1969 |
| Wensum Property Management Limited | Hospitality | 2006 |
| West Norfolk Insurance Services Limited | Financial services | 1978 |
| West Norfolk Sporting Trust Limited | Arts & recreation | 2006 |
| Westminster Finance Corporation (UK) Limited | Financial services | 1990 |
| Westwick Fruit Farms Limited | Agriculture & fishing | 1936 |
| Wharf Investments Limited | Professional & scientific | 1985 |
| Whartons Holdings Limited | Real estate | 1996 |
| Whirlowdale Trading Company Limited | Manufacturing | 1975 |
| Whitmore Garage Limited | Transport & logistics | 1998 |
| Whittley Parish Management Limited | Real estate | 2000 |
| Wigginton Blyth Limited | Construction | 2023 |
| Wilco Motor Spares Limited | Wholesale & retail | 1971 |
| Wildbore Properties Limited | Real estate | 1963 |
| Wildfire Film Releasing Limited | Information & communication | 2007 |
| Willetts Court Management Co. Limited | Real estate | 2000 |
| Williams Pallet Services Limited | Manufacturing | 1986 |
| Willow Tree Cars Limited | Wholesale & retail | 2004 |
| Windmill Chinese Takeaway Limited | Wholesale & retail | 2003 |
| Windoco Limited | Hospitality | 2002 |
| Witley Press Limited(The) | Manufacturing | 1956 |
| Woodland Stores UK Limited | Wholesale & retail | 2007 |
| Worstead Farms Limited | Agriculture & fishing | 1952 |
| Wrights Produce Limited | Agriculture & fishing | 2005 |
| Wroxham Saddlery Limited | Wholesale & retail | 2008 |
| Wylie Estates Limited | Real estate | 1935 |
| X Angling Ltd | Agriculture & fishing | 2018 |
| X Factor Communications Limited | Professional & scientific | 2007 |
| Yarg Consultants Limited | Professional & scientific | 2008 |
| Yarmouth Rewinds Limited | Manufacturing | 2003 |
| Yarmouth Way Supermarket Ltd | Wholesale & retail | 2020 |
| Yeoman Landscapes Ltd | Administrative & support | 2014 |
| Yesu | Health & social care | 2002 |
| Yonka Ltd | Hospitality | 2025 |
| Young (Pulham Market) Limited | Agriculture & fishing | 1971 |
| Youngsters World Limited | Wholesale & retail | 2002 |
| Zigcam North Limited | Information & communication | 2016 |
| Zinetec Limited | Professional & scientific | 2001 |