| Wharton Bank Management Company Limited | Households | 2004 |
| Wharton Farms Ltd | Agriculture & fishing | 2005 |
| Where's BEN IT Limited | Information & communication | 2018 |
| Whimble Mineral Water & Brewing Co. Ltd. | Manufacturing | 1995 |
| White Cottage Docklow Ltd | Households | 2025 |
| Whitley Davies TŶ (Tenby) Ltd | Extraterritorial | 2025 |
| Whyle Residents Limited | Households | 2015 |
| Widgeon Hill Management Company Limited | Real estate | 2010 |
| Wigmore School Academy Trust | Education | 2010 |
| Wild Dog Creations Limited | Wholesale & retail | 2018 |
| Willie's Bar Ltd | Manufacturing | 2020 |
| Willies Cacao Limited | Manufacturing | 2002 |
| Wind & Sun Limited | Energy | 1997 |
| Wintersmith Ltd | Arts & recreation | 2021 |
| WLN Capital Investments Limited | Financial services | 2024 |
| WN Events Limited | Other services | 2018 |
| WN Property Investments Ltd | Real estate | 2019 |
| Women in Golf & Business Limited | Education | 2024 |
| Wrights Division Clearances Ltd | Other services | 2013 |
| WW Excavations Limited | Construction | 2023 |
| WYE Digital Ltd | Information & communication | 2023 |
| Wylde West Creative Limited | Education | 2021 |
| Wynn Logistics Ltd | Transport & logistics | 2023 |
| Wyvern Training Services Limited | Education | 2002 |
| Xact Ltd | Financial services | 2023 |
| Yellow Wood Ltd | Agriculture & fishing | 2007 |
| YEW Tree Close Limited | Households | 2008 |
| Yioshi Ltd | Information & communication | 2021 |
| Yoga for Health and Wellbeing Community Interest Company | Health & social care | 2025 |
| Zanath Catering Ltd | Hospitality | 2018 |
| Zappi Tour Operator Ltd | Administrative & support | 2023 |
| Zappi Travel Group Ltd | Administrative & support | 2022 |
| Zeta Trading Limited | Construction | 1994 |
| ZIP Storage Ltd | Administrative & support | 2025 |
| Zoey Bird Limited | Information & communication | 2006 |
| Zomma Bookkeeping Ltd | Professional & scientific | 2016 |
| Zoomee Ltd | Transport & logistics | 2024 |
| Zovolt Limited | Information & communication | 2012 |