Holly Ventures

Emerging manager

Built from this firm's Form D filings. The firm files no SEC adviser report.

Website: https://www.hollyventures.com
HQ: CA

Holly Ventures is a venture firm that invests only in seed stage founders working on the biggest challenges in cybersecurity. John Brennan is its Founder and Managing Partner. Its portfolio includes Glow, an endpoint AI company, Astelia, an AI-native exposure management platform, and Venice, a privileged access management platform.

01 · Says / Does

Tag	Says	Does
Stages	Seed	Not enough dated deals
Sectors	Cybersecurity	Not enough dated deals
Regions	Global	Not enough dated deals

Says: what the firm's funds state. Does: from 0 dated deals in the last 24 months.

02 · Fund history

Fund	Year	Size	Status
Holly Ventures Fund I, L.P. Holly Ventures invests in seed stage founders tackling the cybersecurity industry's biggest challenges, backing cybersecurity entrepreneurs at their earliest stages. Inferred from the firm's website	2024	$23.33M to $30M (Form D)	Open, writing first checks

03 · People across funds

John Brennan, Managing Member of the General Partner
Holly Ventures Fund I, L.P. (Named on Form D)

04 · Recent deals

No dated deals found yet.

05 · Latest from the firm

No news from the firm's website yet.

06 · Sources

Fund dates and sizes are from SEC Form D filings.

Last verified: Oct 28, 2026