CloudMark (Acquired by Proofpoint)

Cloudmark is a trusted provider of intelligent threat protection against known and future attacks, safeguarding 12 percent of the world’s inboxes and 20 percent of mobile accounts from wide-scale and targeted email threats. Cloudmark protects more than 120 tier-one service providers, including Verizon, Swisscom, Comcast, Cox and NTT, as well as tens of thousands of enterprises.