Investing Profile

John Brennan


Partner at YL Ventures Francisco Bay Area
Photo of John Brennan, Partner at YL Ventures

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YL Ventures Partner
$200K - $5.0M
CompanyStageDateRound SizeTotal Raised
Valence Security
Series AOct 2022$25M
Seed RoundOct 2021$7M
Co-investors: Mony Hassid (M12), Michael Sutton (Blu Venture Investors), Benny Schnaider, Shay Banon
Opus Security
Seed RoundSep 2022$10M
Co-investors: Udi Mokady (Cyberstarts VC)
Eureka Security
Seed RoundJan 2022$8M
Co-investors: Assaf Rappaport
Vulcan Cyber
Series BMar 2021$21M
Co-investors: Mark Hatfield (Ten Eleven Ventures), Michael Sutton (Blu Venture Investors), Henry Mason (Dawn Capital)
Seed RoundNov 2020$6M
Co-investors: Dan Amiga (Cyberstarts VC), Eyal Gruner (Cyberstarts VC), Michael Sutton (Blu Venture Investors), George Kurtz, Sounil Yu