| Trojan Power Solutions Limited | Construction | 2020 |
| Tyreright(Gloucester) Limited | Wholesale & retail | 2010 |
| Vorenta Ltd | Financial services | 2018 |
| W.E Plant Limited | Construction | 2013 |
| Walks With the Pack Limited | Other services | 2023 |
| Wasp Joinery and Construction Company Limited | Manufacturing | 1974 |
| WE Three Pubs Ltd | Hospitality | 2024 |
| Weir Mechanical Solution Limited | Professional & scientific | 2018 |
| WGS Construction Limited | Construction | 2025 |
| White Lion (NE) Engineering Limited | Professional & scientific | 2015 |
| White Lion Projects Limited | Professional & scientific | 2007 |
| Wickselm House Learning Centre CIC | Education | 2021 |
| Wightstone Land & Planning Limited | Construction | 2020 |
| Wilden and Mason Ltd | Administrative & support | 2009 |
| Williams Entity Limited | Real estate | 2023 |
| Winfield Contracts Limited | Professional & scientific | 2019 |
| Wingham Wool Work Limited | Manufacturing | 2015 |
| With My Compliments Limited | Hospitality | 2013 |
| With My Compliments Two Limited | Hospitality | 2006 |
| Wittys Washes Ltd | Administrative & support | 2024 |
| Woodford Green Berkeley Ltd | Real estate | 2025 |
| Woodward Motors Limited | Wholesale & retail | 2024 |
| Workaim Limited | Professional & scientific | 1989 |
| Wrightleague Limited | Information & communication | 2014 |
| WSC Performance Limited | Wholesale & retail | 2015 |
| Ximena Limited | Construction | 2011 |
| XL Plumbing & Heating Solutions Limited | Construction | 2013 |
| Yate Garages (South West) Limited | Wholesale & retail | 2008 |
| Yume Nishikigoi Limited | Administrative & support | 2005 |