Zerto provides disaster recovery and business continuity software and experienced the highest growth rate (24,088%) of the companies on the list between 2011-2014. Taboola is a leading content discovery platform that serves over 150 billion recommendations each month to more than 400 million unique visitors, and had the second highest growth rate (13,797%). HIRO Media is a premier online video content provider that experienced a growth rate of 5,724% during that period.