GreatHorn is an email security platform, headquartered in Waltham, United States, founded in 2015.
| Date | Round | Amount | Investors |
|---|---|---|---|
| 2022-02-23 | Growth Stage | $103K | Techstars |
| 2019-06-26 | Series B | $13M | .406 Ventures, RRE Ventures |
| 2017-06-21 | Series A | $6.3M | .406 Ventures, Techstars |
| 2016-03-21 | Seed | $2.3M | ff Venture Capital, Uncork Capital |
| 2015-09-21 | Growth Stage | $275K | Techstars |
Data from The Signal by Return on Security — cybersecurity funding, M&A activity, and company intelligence.