SAN FRANCISCO--(BUSINESS WIRE)--Cloudmark, Inc., a trusted leader in intelligent network security, today announced that it achieved double-digit revenue growth to close the first half of 2015. The company’s growing momentum was driven by strong adoption of Cloudmark Security Platform for Email, which was selected by several new customers to displace solutions from other vendors. Cloudmark also grew bookings by 37 percent in Q2 2015 over Q2 2014, with strong international demand for its solution