Nextiva, Inc. is a cloud-based VoIP communications company founded in 2006 and based in Scottsdale, Arizona, United States. The company offers office telephony services to the small and medium-size companies serving in the United States and Canada. Nextiva business phone systems focus on VoIP services. In addition, the company provides virtual fax lines and PBX trunk lines for SIP Trunking. The company is owned by UnitedWeb Inc., a holding company based in Scottsdale that owns other technology businesses including online security firm SiteLock, Internet hosting firm IPower and web-based marketing firm IBoost.