Eyal Gruner
Angel investor in Boston
Boston, Massachusetts
Eyal Gruner, Angel investor in Boston is an active investor based in Boston, Massachusetts. This profile covers what Eyal Gruner backs, at which stage, and how founders can reach out in 2026.
Mr. Eyal Gruner is a Co-Founder and Board Member at Cynet. He served as Chief Executive Officer at Cynet. He also serves as a Board Member at Cycode. He is also an angel investor. He is a Co-founder and serves as an Advisor & Board Member at Cymulate. He is also a Co-Founder and former Chief Executive Officer at BugSec, Israel's leading cyber consultancy, and Versafe, which was acquired by F5 Networks in 2013. He joined the bank's Information Security team for a year before spending another year at age 16 working at the former Aladdin Knowledge Systems. He founded BugSec in 2005. He has been recognized in Google's Hall of Fame with a Google Security Reward for identifying and reporting vulnerabilities.
- Investor type
- Angel
- Stages
- Early Stage VentureSeedSeries A
- Invests in
- Cybersecurity
- Location
- Boston, Massachusetts
- Typical check
- $500K
- Past investments
- 4
Notable investments
Cymulate
CycodeCyclops Security
build.securityHow to reach Eyal Gruner
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Round Funded. "Eyal Gruner." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/eyal-gruner-174477-9
Frequently Asked Questions
What does Eyal Gruner invest in?
Eyal Gruner invests in Cybersecurity, typically at Early Stage Venture, Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Eyal Gruner invest at?
Eyal Gruner typically invests at Early Stage Venture, Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Eyal Gruner's typical check size?
Eyal Gruner typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
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