| STC Developments EA Ltd | Construction | 2025 |
| Steven Dean Solutions Ltd | Professional & scientific | 2017 |
| Strategic Goal Management Consulting Ltd | Professional & scientific | 2022 |
| Strudale Engineering Ltd. | Professional & scientific | 2004 |
| TH Developments Norfolk Ltd | Construction | 2022 |
| THE Green MAN Building Company Ltd | Construction | 2013 |
| THE Wonder Wood Limited | Arts & recreation | 2015 |
| Theodoros Ltd | Financial services | 2022 |
| Toys & Learning Limited | Wholesale & retail | 2007 |
| V P H Roofing & Scaffolding Limited | Construction | 1999 |
| Vanhard Properties Limited | Real estate | 2011 |
| Versatile (UK) Limited | Administrative & support | 2006 |
| W.A.S. Limited | Water & waste | 1989 |
| Warren Simpson Group Ltd | Financial services | 2023 |
| WAS Building Services Limited | Extraterritorial | 2005 |
| Water Hall Kennels Limited | Arts & recreation | 2005 |
| Watton & Wayland Times Ltd | Information & communication | 2024 |
| Watton Hub Limited | Administrative & support | 2023 |
| Watton Storage Ltd | Transport & logistics | 2017 |
| Watton Valeting Centre Ltd | Wholesale & retail | 2015 |
| Watts Boiler Spares Ltd | Wholesale & retail | 2021 |
| Wayland Executive Cars Ltd | Transport & logistics | 2018 |
| Weatherill Brothers Property Limited | Real estate | 2012 |
| Wheel Repair IT Ltd | Wholesale & retail | 2002 |
| Woltna Ltd | Construction | 2024 |
| WSP2 Ltd | Real estate | 2024 |