Partner
John Brennan
Founder & Managing Partner, Holly Ventures
- Firm
- Holly Ventures
- Title
- Founder & Managing Partner
- Role
- Managing partner
- Known as
- Investor
Record updated 21 September 2026
About
John Brennan is the Founder & Managing Partner of Holly Ventures, a $33M seed stage venture capital fund that exclusively invests in and supports cybersecurity entrepreneurs at their earliest stages. John is dedicated to working with founders on the tactical and strategic challenges that come with founding cybersecurity startups, and aims to serve as a bridge between his portfolio companies and the security communities that they serve. Having previously held roles at YL Ventures, DCVC, OCA Ventures, and Horsley Bridge Partners, John also holds an MBA from the University of Chicago and a Bachelor of Science from Trinity College in Connecticut.
Background
- Education
- John also holds an MBA from the University of Chicago and a Bachelor of Science from Trinity College in Connecticut.Source (opens in a new tab)
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