| Webimpacto Consulting, S.L. | |
| Webllope | |
| Webmaster Barcelona | Barcelona |
| WebMasterVic | Barcelona |
| Webpac | Madrid |
| Webpilots España, S.L. | Barcelona |
| Webpositer | Alicante |
| Webs Catalunya | Barcelona |
| Websdirect, S.L. | Madrid |
| Webservi | |
| WebsGalicia.es | Pontevedra |
| Websmultimedia | Sevilla |
| Webspreso | |
| Webstyle Mallorca | Balearic Islands |
| Webtools, S.L. | Madrid |
| WebTranslateIt Software, S.L. | Málaga |
| Webvision | Alicante |
| Weecover | Barcelona |
| Weeduu | Córdoba |
| WeLoveWeb | |
| Wembley Studios | Salamanca |
| Wenea | Madrid |
| Weplan Analytics | Madrid |
| Werfen | |
| Wetech | Asturias |
| Wetopi | |
| WeWeb | Barcelona |
| WFC Tech Consulting | Málaga |
| Whads | Barcelona |
| Whisbi | Barcelona |
| WhiteBearSolutions | Madrid |
| Wide Eyes Technologies | Barcelona |
| Wideum | |
| Widgetic | A Coruña |
| WiFi.PRO | Málaga |
| WifiRed, S.L. | Almería |
| Wifisafe Spain, S.L. | Barcelona |
| Wild Wild Web Digital, S.L. | Madrid |
| Windar Renovables, S.A.U. | |
| Windtechnics | |
| Winhotel Solutions | Balearic Islands |
| WinOmega.com | Barcelona |
| WinPYME | Asturias |
| Winworld | Barcelona |
| Wireless Galicia | Pontevedra |
| Wireless Mundi, S.L. | Madrid |
| Wirum Tech | Madrid |
| Wise Athena | Madrid |
| Wiserentr Digital, S.L. | Madrid |
| WITRAC | Valencia |