GreatHorn

GreatHorn provides protection for cloud email systems, via advanced threat detection, automated defense, and integrated incident response. The job it does: assessing, monitoring and responding to security threats on your behalf.

It makes the most sense for companies without a full security team. They also list Cyber Security, Email, Hardware, Machine Learning and Security, so expect those to show up in the feature set. As a small company team themselves (11 to 50 people), they tend to serve customers of a similar scale best. You will probably talk to the people who build it, which is great until you need 24/7 support.

GreatHorn is based in Waltham, Massachusetts. More on greathorn.com.

Things worth asking about: response times, what is included in monitoring, and reporting. A short pilot with your real data tells you more than any demo.

If you have worked with GreatHorn, tell the next buyer what you paid and what surprised you. That is the part of this page we cannot write.