Marina Hardof

Cloudmark, Inc. provides messaging security software. Its cloudmark security platform delivers instant security and control across diverse messaging environments, enabling communications service providers to create a safe user experience, protect revenue and safeguard their brand, while streamlining infrastructure and reducing operational costs. The firm's other products include cloudmark authority, cloudmark sender intelligence, GSMA spam reporting service, cloudmark server edition, and cloudmark activefilter. The company was founded in September 2001 by Vipul Ved Prakash and Jordan Ritter and is headquartered in San Francisco, CA.

Bizanga Ltd. provides email and message security services. The company was founded by Marc Sheldon, Jerôme Lecat and Olivier Lemarié in 2003 and is headquartered in London, the United Kingdom.