Investing Profile

John Brennan

InvestorVC

Founder & Managing Partner at Holly Ventures

ylventures.com/people/john-br...San Francisco Bay Area

Your Intro Paths to John Brennan

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Networks John is a member of

The University of Chicago Booth School of Business Network

213 CONNECTIONS

YL Ventures Network

25 CONNECTIONS

Trinity College-Hartford Network

22 CONNECTIONS

Hunters Network

13 CONNECTIONS

Orca Security Network

11 CONNECTIONS

Find John Brennan on

Current Investing Position

Holly Ventures Managing Partner

Investment Range

$200K - $5.0M

Sweet Spot

$2.0M

Investments On Record

John Brennan is on these Sector & Stage Rankings

San Francisco Bay Area Cybersecurity (Seed)

John Brennan's Investments On Record (6)

Company	StageDateRound Size	Total Raised
Spera	SeedMar 2023$10M	$10M
Co-investors: Michael Sutton (Runtime Ventures)
Valence Security	Series AOct 2022$25M SeedOct 2021$7M	$32M
Co-investors: Michael Fey (Picture Capital), Michael Sutton (Runtime Ventures), Mony Hassid (Microsoft Ventures), Shay Banon (Elastica acquired by Symantec), Benny Schnaider
Opus Security	SeedSep 2022$10M	$10M
Co-investors: Udi Mokady (General Catalyst), Oliver Friedrichs (CrowdStrike), Michael Sutton (Runtime Ventures), George Kurtz
Eureka Security	SeedJan 2022$8M	$8M
Co-investors: Ben Bernstein (ICONIQ Capital), Assaf Rappaport (Mensch Capital Partners)
Vulcan Cyber	Series BMar 2021$21M	$69M
Co-investors: Michael Sutton (Runtime Ventures), Mark Hatfield (Ten Eleven Ventures), Henry Mason (Dawn Capital)
build.security	SeedNov 2020$6M	$6M
Co-investors: Eyal Gruner (Cyberstarts VC), Dan Amiga (Cyberstarts VC), Michael Sutton (Runtime Ventures), George Kurtz

John Brennan's Media (1)

YLV Fund V: At $400M, the Largest Seed Fund Ever Raised for Cybersecurity - YL Ventures

www.ylventures.com

John Brennan's Experience

Seed Investor Vulcan Cyber, a Tenable CompanyPresent

Seed Investor Vulcan CyberPresent

Seed Investor HuntersPresent

Seed Investor Orca SecurityPresent

Seed Investor SatoriPresent

Seed Investor CycodePresent

Seed Investor build.security (acquired by Elastic)Present

Seed Investor enso.security (Part of Snyk)Present

Seed Investor enso.securityPresent

Seed Investor Grip SecurityPresent

Seed Investor Valence SecurityPresent

Seed Investor Autonomous SecurityPresent

Seed Investor MCPTotalPresent

Seed Investor Eureka Security (Acquired by Tenable)Present

Seed Investor Eureka SecurityPresent

Seed Investor Opus Security (Now Part of Orca Security)Present

Seed Investor Spera, now Okta ISPMPresent

Seed Investor Aim Security (Now part of Cato Networks)Present

Seed Investor GutsyPresent

Seed Investor Miggo SecurityPresent

Seed Investor MINDPresent

Seed Investor VenicePresent

Seed Investor AsteliaPresent

Senior Partner YL VenturesPresent

Founder & Managing Partner Holly VenturesPresent

John Brennan's Education

Trinity College-Hartford BS Economics, Political Science

The University of Chicago Booth School of Business Master of Business Administration (MBA) Entrepreneurship & Finance

Investors who invest with John Brennan

Scouts & Angels Affiliated With John Brennan