| viepal Financial Services Ltd | |
| VillagePay | |
| VIMAR | |
| Viral Media | |
| Virgin Media Ireland Ltd | Dublin City Council |
| Vision-Net | |
| VistaTEC Ltd | Dublin City Council |
| VISUA Labs Ltd | |
| Vitalograph Ltd | |
| Vivagogy Asset Holdings Ltd | |
| Vivasure Medical Ltd | |
| Vizor Ltd | Dún Laoghaire-Rathdown County Council |
| VMotion IT Solutions Ltd | |
| Vodafone Ireland Ltd | Dún Laoghaire-Rathdown County Council |
| Volograms Ltd | |
| Voltedge | |
| VooDoo Digital | Dún Laoghaire-Rathdown County Council |
| VR First | |
| VRAI | |
| VRAI Simulation | |
| Vrayo Systems Ltd | |
| Vromo | Dublin City Council |
| vStream | |
| VSware | |
| VT Electron | |
| W3b Cloud | |
| Wall Web Design | |
| Wandsoft | South Dublin County Council |
| Waterford Institute of Technology | Waterford City and County Council |
| Wayflyer | |
| Waypoint | |
| Wayworks | |
| WBT Systems | Dublin City Council |
| Web Bridge | |
| Web Consulting Agency | |
| Web Design Ireland | |
| Web Hosting Ireland | Waterford City and County Council |
| Web Page Design Company | Dún Laoghaire-Rathdown County Council |
| Web Sales Promotion | Dublin City Council |
| Web World Ireland | South Dublin County Council |
| Web4Print | South Dublin County Council |
| Webbery | Donegal County Council |
| WebBuddy | |
| Webdoctor Ltd | |
| Webeffects | Dún Laoghaire-Rathdown County Council |
| Webforge | Leitrim County Council |
| WebHero Ltd | |
| Webie Ltd | |
| Webio Ltd | |
| Webireland | Dublin City Council |