| Ugag Solutions Ltd | Construction | 2019 |
| UK Stove Fans Limited | Wholesale & retail | 2019 |
| Ultimet Films Holdings Limited | Professional & scientific | 2014 |
| Ultimet Films Limited | Manufacturing | 1995 |
| Unbound Clothing Ltd | Wholesale & retail | 2024 |
| Unity Home Solutions Ltd | Professional & scientific | 2023 |
| Unsworth Architects Ltd | Professional & scientific | 2015 |
| V B C Associates Limited | Professional & scientific | 2004 |
| Valued Business Support Ltd | Professional & scientific | 2020 |
| Vermillion Motors Ltd | Wholesale & retail | 2024 |
| Verona Sports Limited | Education | 2013 |
| Vine Cottage PT Limited | Real estate | 2016 |
| VK Surgical Limited | Health & social care | 2023 |
| W.J. Chard Limited | Health & social care | 1971 |
| Wallchart.Co Art Ltd | Arts & recreation | 2015 |
| Walnut Farm Developments Limited | Construction | 2000 |
| Walworth Castle Opco Limited | Hospitality | 2023 |
| Wartrax Ltd | Arts & recreation | 2018 |
| Waterfalls Enterprises Ltd | Hospitality | 2021 |
| Watermist Limited | Manufacturing | 2006 |
| Waters Edge Developments Limited | Construction | 2015 |
| Wayland PUB Company Limited | Hospitality | 2014 |
| WBC (Norfolk) Limited | Manufacturing | 2005 |
| WE Love RAW Ltd | Manufacturing | 2015 |
| WE Three Bears Ltd | Wholesale & retail | 2025 |
| Webster Commercial Properties Limited | Real estate | 2025 |
| Wellside Holdings Ltd | Financial services | 2022 |
| Wendy Dyde Limited | Health & social care | 2017 |
| Wentwood Investments Limited | Real estate | 2024 |
| Wentwood Kitchens Ltd | Construction | 2021 |
| Wentwood Limited | Manufacturing | 2013 |
| White Reflections Limited | Wholesale & retail | 2017 |
| Widemouth Opco Limited | Hospitality | 2023 |
| Willow Health & Care Ltd | Health & social care | 2020 |
| Wingfield Concreting Contractors Limited | Construction | 2010 |
| Womack Building Supplies Limited | Wholesale & retail | 2004 |
| Woodlands (Norfolk) Limited | Agriculture & fishing | 1957 |
| Wopa Hoof Trimming UK Ltd | Manufacturing | 2023 |
| Worldwide JET Support Limited | Professional & scientific | 2013 |
| Wormfields Limited | Wholesale & retail | 2005 |
| Wrights (Attleborough) Ltd. | Wholesale & retail | 2000 |
| WSM Carpentry & Services Limited | Construction | 2022 |
| Wymondham Scaffolding Ltd | Construction | 2025 |
| Xclusivedecor Limited | Wholesale & retail | 2010 |
| Yellow Equity Holdings Limited | Financial services | 2026 |
| Yellow Homes Limited | Real estate | 2020 |
| Yellow Lets Limited | Real estate | 2026 |
| Yellow Mountain Limited | Real estate | 2025 |
| Yourpath Academy Ltd | Education | 2025 |
| ZERO6 ZERO8 Consulting Ltd | Professional & scientific | 2022 |