Vital Network Services  
   A global communications service company providing network support services.
   http://www.vitalnetworkservices.com/

VNET Technologies  
   Specializes in the provision of secure, remote network access, with a special emphasis on branch access and teleworking, e-working and telecommuting.
   http://www.vnet.ie/

VoIPing  
   Specializes in voice, video and data network convergence.
   http://www.voiping.com/

Veraciti  
   Provides computer networking, programming, applications development, internet services and systems integration services. (Nasdaq: IBSX).
   http://www.interactive.net/