Redwood City, Calif.
Top Executive: Mark Risher, Co-Founder & CEO
Impermium provides antispam technology for social networks. The company's subscription-based web service prevents and mitigates most types of suspicious and abusive transactions, and provides realtime and batch monitoring of web transactions. Among the abuses Impermium's service prevents are password hacking, malware placement, fake follower and friending schemes, account takeovers and bogus registration.