| Wakefields Smarter Home Technology Ltd | Wholesale & retail | 2009 |
| Waking Warrior Limited | Professional & scientific | 2026 |
| Walbert Developments Limited | Construction | 2017 |
| Walbotl Coffee House Limited | Hospitality | 2021 |
| Walbottle Farm Maintenance Limited | Real estate | 1998 |
| Walby SES Limited | Real estate | 2017 |
| Waldo Property Investments Ltd | Real estate | 2019 |
| Walecare Limited | Health & social care | 2022 |
| Wali Khan Properties Limited | Real estate | 2024 |
| Walia Properties NE Ltd | Households | 2020 |
| Walkabout Wags Ltd | Other services | 2026 |
| Walkdog.Uk Ltd | Other services | 2024 |
| Walker Brothers Ltd | Manufacturing | 2015 |
| Walker Convenience Store Limited | Wholesale & retail | 2021 |
| Walker Desserts Limited | Manufacturing | 2024 |
| Walker Inspection Limited | Professional & scientific | 2016 |
| Walker Pharmacy Limited | Wholesale & retail | 2014 |
| Walker Taxis (NE) Limited | Transport & logistics | 2019 |
| Walker Taxis Ltd | Transport & logistics | 2014 |
| Walkergate Tyres Ltd | Wholesale & retail | 2018 |
| Walkers Eyecare Ltd | Wholesale & retail | 2021 |
| Walkersxchange Estate Agents Limited | Real estate | 2021 |
| Walkerville Garage Ltd | Wholesale & retail | 2015 |
| Walksight Ltd | Information & communication | 2021 |
| Wall & Floor Tiles Limited | Professional & scientific | 2003 |
| Wall Street Housing Ltd | Real estate | 2024 |
| Wallis Recruitment Ltd | Administrative & support | 2026 |
| Walne Research Consulting Limited | Administrative & support | 2018 |
| Walnut Investments Limited | Financial services | 2003 |
| Walter a Wright Insurance Brokers Limited | Financial services | 1977 |
| Walter COX (Finance) Limited | Professional & scientific | 1976 |
| Walton Robinson Investments Limited | Real estate | 2015 |
| Waltons Marquees Limited | Administrative & support | 2006 |
| Walwick Hall LLP | | 2018 |
| WAM Properties Limited | Real estate | 2020 |
| WAN 1 Limited | Hospitality | 2019 |
| Wansbeck Plant Limited | Administrative & support | 2006 |
| Wanwise Limited | Information & communication | 2001 |
| Waqs Shack Ltd | Wholesale & retail | 2024 |
| Ward Hadaway LLP | | 2020 |
| Ward Management Services Limited | Manufacturing | 2004 |
| Ward Robinson (Design) Limited | Professional & scientific | 2015 |
| Ward Robinson Limited | Professional & scientific | 1987 |
| Wardair Direct Limited | Wholesale & retail | 2000 |
| Warden Rock Limited | Administrative & support | 2022 |
| Warden Tyne Solutions Limited | Administrative & support | 2026 |
| Wardens Residential Limited | Real estate | 2024 |
| Wardle Holdings Limited | Financial services | 2017 |
| Wardley Investments Limited Liability Partnership | | 2007 |
| Wards DO Art Limited | Wholesale & retail | 2007 |
| Wardway Properties Limited | Real estate | 2026 |
| Warenford Management Company Limited | Real estate | 2006 |
| Warenton Shiel Limited | Hospitality | 2013 |
| Warin Air Care Limited | Health & social care | 2026 |
| Warkworth House Management Limited | Households | 2018 |
| Warm Care Ltd | Construction | 2020 |
| Warm Cuddles Ltd | Wholesale & retail | 2024 |
| Warm Homes Installations Ltd | Administrative & support | 2026 |
| Warm Your Heart Candle Ltd | Wholesale & retail | 2023 |
| WARM4U Ltd | Construction | 2022 |
| Warmdata Limited | Professional & scientific | 2024 |
| Warmglow Construction Ltd | Construction | 2019 |
| Warner Building and Roofing Ltd | Construction | 2017 |
| Warren Court Limited | Construction | 1995 |
| Warren Housing Limited | Real estate | 2022 |
| Warrens Developments LLP | | 2023 |
| Warrens Holdings Ltd | Real estate | 2023 |
| Warrior Programming Limited | Health & social care | 2016 |
| Wartcom LP | | 2017 |
| WAS Today Limited | Professional & scientific | 2010 |
| Wash and Go Services Ltd | Administrative & support | 2025 |
| Wash and Shine Newcastle Ltd | Other services | 2020 |
| Wash VAC Go Limited | Other services | 2022 |
| Washington Display Limited | Manufacturing | 1995 |
| Washington Gymnastics Club Limited | Arts & recreation | 2026 |
| Wasp Global Limited | Education | 2014 |
| Waste Managed Limited | Water & waste | 2021 |
| Waste Point Ltd | Wholesale & retail | 2023 |
| Waste to Energy (UK) Ltd | Water & waste | 2014 |
| Watan Property Limited | Real estate | 2024 |
| Watan Wholefoods Ltd | Manufacturing | 2021 |
| Watch Toolkit Limited | Other services | 2023 |
| Watchmodscustoms Limited | Manufacturing | 2025 |
| Watchorn Consulting Ltd | Professional & scientific | 2025 |
| Water of Life Productions Ltd | Arts & recreation | 2023 |
| Water, GAS and Power Limited | Energy | 2016 |
| Waterbury Limited | Professional & scientific | 2022 |
| Waterdale Developments Limited | Real estate | 2019 |
| Wateredge Hotel Limited | Extraterritorial | 1994 |
| Waterfall Newcastle Ltd | Information & communication | 2019 |
| Waterfall Weddings Limited | Professional & scientific | 2023 |
| Watergate Community Café CIC | Hospitality | 2016 |
| Waterlily Newcastle Ltd | Health & social care | 2020 |
| Waterloo Building Services NE Ltd | Construction | 2025 |
| Waterloo Heights Ltd | Construction | 2026 |
| Waterloo House Ltd | Real estate | 2024 |
| Waterloo House Rest Home Limited | Health & social care | 2010 |
| Waterloo Property Ltd | Real estate | 2025 |
| Waterloo Sidings Management Company Limited | Real estate | 2025 |
| Watermark Property Limited | Real estate | 2021 |