OSSEC

OSSEC is a Unix based cyber security system available for network use. The job it does: assessing, monitoring and responding to security threats on your behalf.

The natural audience is companies without a full security team. Related areas on their profile: Cyber Security and Security. As a large company team themselves (501 to 1,000 people), they tend to serve customers of a similar scale best. At that size expect formal onboarding, documentation and a longer sales cycle.

OSSEC is based in San Francisco, California. Their site is ossec.net.

Things worth asking about: response times, what is included in monitoring, and reporting. Get the renewal terms in writing before the first invoice.

The facts above come from public company records. The score will come from people like you. Used OSSEC? Rate it.