GreatHorn Raises $13M in Funding

greathornGreatHorn, a Waltham, MA-based provider of an email security platform, closed a $13m funding round.

The round was co-led by RRE Ventures and .406 Ventures, with participation from existing investors including Techstars Ventures, V1.VC and Uncork Capital.

The company intends to use the funds for expansion into the enterprise market.

Led by CEO Kevin O’Brien, GreatHorn provides a cloud-based email security threat detection and response platform that safeguards organizations before, during, and after an email attack. Unlike legacy tools that rely on reactive threat detection methods and binary, perimeter-based analysis, the company’s solution secures enterprises from email threats at every vulnerable point – from inline pre-inbox analysis through to time of delivery, and post-delivery during incident response and continuous analysis – with integrated threat detection, protection, defense, and incident response.
GreatHorn’s platform shields businesses from business email compromise, credential theft attempts, business services spoofing, malware, ransomware, and other advanced social engineering-based phishing attacks.



Katie Leonowitz
fama PR on behalf of GreatHorn
[email protected]

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