| VG Stores (Amble) Ltd | Wholesale & retail | 2021 |
| Vibrant Thinking Ltd | Arts & recreation | 2015 |
| Vicham Ltd | Agriculture & fishing | 2022 |
| Vikings Pizza Ltd | Hospitality | 2026 |
| Vipa Business Services Ltd | Administrative & support | 2018 |
| Visit Northumberland Ltd | Administrative & support | 2006 |
| Vistas Wine Bar (Amble) Ltd | Hospitality | 2026 |
| Vlorenzinnovate Ltd | Information & communication | 2026 |
| WAKEMAN22 Limited | Households | 2020 |
| Wansbeck (Morpeth) Limited | Real estate | 2004 |
| Wansbeck Carpet & Floor Ltd | Wholesale & retail | 2017 |
| Wansbeck Construction Limited | | 1977 |
| Wansbeck Delivery Services Limited | Transport & logistics | 2015 |
| Wansbeck Riverside Caravan Park Ltd | Hospitality | 2019 |
| Wardour Music Ltd | Information & communication | 2009 |
| Wardour Records Limited | Arts & recreation | 2010 |
| Warkworth Golf Club Ltd | Arts & recreation | 2023 |
| Warwicks Removals Ltd | Transport & logistics | 2018 |
| Watson House Clinic LLP | | 2022 |
| Watson James Group Limited | Real estate | 2021 |
| Waxwing Engineering Limited | Professional & scientific | 2017 |
| Wayne Software Ltd | Information & communication | 2025 |
| WB3 Limited | Financial services | 2000 |
| Wealthyhouse Ltd | Real estate | 2026 |
| Wellbeing Challenge CIC | Education | 2013 |
| Wellway Accountants Limited | Professional & scientific | 2002 |
| Wellway Business Advisers Limited | Professional & scientific | 1999 |
| Wellway Pharmacy Limited | Wholesale & retail | 1995 |
| Wellway Wealth Management Limited Liability Partnership | | 2008 |
| Wessex Solar Energy Limited | Energy | 2019 |
| Wessex Solar Management Limited | Energy | 2019 |
| West Grange Equestrian Ltd | Hospitality | 2023 |
| West Moor Farm Equestrian Ltd | Agriculture & fishing | 2019 |
| West Thirston Management Company Limited | Households | 2018 |
| WEST4ORCE Limited | Construction | 2016 |
| Westbourne Hull Limited | Real estate | 2018 |
| Westgate Laboratories Limited | Administrative & support | 2003 |
| Westhorpe Discovery Consulting Ltd | Professional & scientific | 2026 |
| Westmoor Surgical Solutions Ltd | Health & social care | 2025 |
| WH IT Consultancy Ltd | Administrative & support | 2012 |
| Whalton Manor House Dairy Management Company Limited | Households | 2015 |
| Whell Care Ltd | Health & social care | 2018 |
| WHERE2WALK Ltd | Other services | 2010 |
| Whey-Eye Limited | Wholesale & retail | 2010 |
| Whinn Consulting Limited | Information & communication | 2015 |
| Whinn PPM Limited | Real estate | 2020 |
| White Tanning Studio Morpeth Ltd | Other services | 2023 |
| Whitefield Farm Barns Ltd | Real estate | 2020 |
| Whiteside Residential Limited | Real estate | 2013 |
| Wild North Café Ltd | Hospitality | 2025 |
| Wild North Stays Limited | Hospitality | 2026 |
| Wilkins Fine Dining Limited | Hospitality | 2010 |
| Wilson Structures Limited | Construction | 2015 |
| Winch Construction Ltd | Construction | 2023 |
| Windle Cook Limited | Administrative & support | 2012 |
| Windylaw Limited | Real estate | 2015 |
| Winn Electrical Services Ltd | Construction | 2019 |
| Winn Private Hire Ltd | Transport & logistics | 2019 |
| Winnpharma Ltd | Professional & scientific | 2024 |
| Witches Brew Productions Ltd | Arts & recreation | 2019 |
| Witton House Associates Limited | Real estate | 2004 |
| WMH Advisory Limited | Administrative & support | 2024 |
| WMH Management LLP | | 2024 |
| WMH Partnership Limited | Administrative & support | 2024 |
| Wolf Audio Ltd | Arts & recreation | 2023 |
| Women's Workshop | Information & communication | 2005 |
| Woodfin Estates Limited | Real estate | 2024 |
| Woodlawn (NE) Limited | Real estate | 2022 |
| Woodlea Design and Build Ltd | Construction | 2015 |
| WOX Agri Services Ltd | Wholesale & retail | 2008 |
| WSE Blackberry Lane Limited | Energy | 2013 |
| WSE Casewick Lane Limited | Energy | 2021 |
| WSE Dale Road Limited | Energy | 2014 |
| WSE Gabrielspring Wood Limited | Energy | 2021 |
| WSE Haddon Direct Limited | Energy | 2021 |
| WSE Haddon Road Limited | Energy | 2020 |
| WSE Heather Vale Limited | Energy | 2021 |
| WSE Holt Lane Limited | Energy | 2021 |
| WSE Little Albans Limited | Energy | 2021 |
| WSE Lodge Hill Limited | Energy | 2020 |
| WSE Malmesbury Road Limited | Energy | 2020 |
| WSE Parsley Wood Limited | Energy | 2021 |
| WSE Pembrokeshire Limited | Energy | 2020 |
| WSE Swallowfield Road Limited | Energy | 2013 |
| WST Investments Limited | Financial services | 2019 |
| Xeinadin NAL Oldco Limited | Professional & scientific | 2019 |
| Yachtfab Ltd | Manufacturing | 2024 |
| Yellow Fields OIL LLP | | 2009 |
| You'Re Mint Ltd | Health & social care | 2025 |
| Youngman Inns Limited | Administrative & support | 2019 |
| Youth Bridge NE CIC | Administrative & support | 2024 |
| Zalaro Ltd | Other services | 2023 |
| Zevolv Limited | Information & communication | 2024 |