| Vicont Properties Ltd | Real estate | 2019 |
| Viewpoint (Hillsborough) Limited | Construction | 2016 |
| Viewpoint (Mallusk) Limited | Construction | 2016 |
| Vind Services Ltd | Manufacturing | 2026 |
| Violet Avenue Company Limited | Extraterritorial | 2025 |
| Virogen Ltd | Construction | 2012 |
| Viva Bingo Hall Limited | Arts & recreation | 2002 |
| Ward Piling Limited | Construction | 2004 |
| Waterside Leisure (NI) Limited | Real estate | 2003 |
| Waypoint North Ltd | Professional & scientific | 2026 |
| Wealthtech Support Services Ltd | Professional & scientific | 2026 |
| Weir & Co. (NI) Ltd | Professional & scientific | 2008 |
| Wellfield Contracts Ltd | Real estate | 2023 |
| Wgbage Limited | Agriculture & fishing | 2024 |
| Wheels Ireland Ltd | Wholesale & retail | 2019 |
| Whiskey Dog Ltd | Professional & scientific | 2026 |
| White Bricks Properties Ltd | Real estate | 2026 |
| White Star Consultants Limited | Construction | 2013 |
| Whites Antiques Ltd | Wholesale & retail | 2025 |
| WILC74 Ltd | Transport & logistics | 2024 |
| William Deazley Ltd | Manufacturing | 2021 |
| Willow Crescent Company Limited | Real estate | 2020 |
| Willows Central Ltd | Real estate | 2025 |
| Wilmac Construction (N.I.) Ltd | Construction | 2008 |
| Wilsons Freshways Ltd | Wholesale & retail | 2012 |
| Winta Holdings Ltd | Wholesale & retail | 2024 |
| Winton & Co Commercial Limited | Real estate | 2017 |
| Winton & Co Estate Agents Limited | Real estate | 2017 |
| Wisteria Media Ltd | Professional & scientific | 2022 |
| Women Gone Strong Ltd | Arts & recreation | 2026 |
| Woodhill Contracts Ltd | Construction | 2015 |
| Woodtek Industries Ltd | Manufacturing | 1996 |
| Woodworkability CIC | Construction | 2026 |
| Workspace (Draperstown) Limited | Real estate | 1985 |
| Wraphub-Ni Limited | Wholesale & retail | 2023 |
| Wren Company N.I. Ltd | Financial services | 2019 |
| WTS - O&M Ltd | Manufacturing | 2021 |
| Wulop Ireland Limited | Health & social care | 2026 |
| X26 Festive Events Ltd | Arts & recreation | 2017 |
| X26 Halloween Events Ltd | Arts & recreation | 2017 |
| X26 Running Events Ltd | Arts & recreation | 2017 |
| Yellowstone Ltd | Wholesale & retail | 2013 |
| YOU Clean ME Ltd | Administrative & support | 2014 |
| Zaisang Ltd | Information & communication | 2019 |