Video start-ups vie with tech giants in $7B market Jan 14, 2016 CNBC | Ari Levy The crowded video-conferencing market has turned into an all-out landgrab. Industry giants Cisco, Microsoft, Citrix and Polycom, consumer-friendly services from Google and Skype and a host of start-ups headlined by Blue Jeans Network and Zoom are vying for dollars as businesses adopt cloud-based video systems that work on all devices. And now there's Lifesize, which split from Logitech at the end of 2015 and raised $17.5 million from three venture capital firms. Companies are dumping their expensive, proprietary systems for technology that works on smartphones and in web browsers as well as on commodity cameras and big-screen TVs. They're seeking the consumer elements of Skype with the security and support of enterprise software. Lifesize, in making its first public comments since the spinout two weeks ago, sees a $7 billion market opportunity.