Leader in web session intelligence--tracks whether site visitors are criminals or customers. Must have tool for any company's cyber security tool kit. Silver Tail systems was a privately held company in California but was acquired by EMC/RSA at the end of 2012. Cyber crime is now a reality for any big (or small) company doing business online.
Tripwire is another cyber security tool that is vital for systems and data security. They also help automate regulatory compliance with everything from HIPAA to ISO compliance. Also, Tripwire's CTO has a long record in the cyber security space.