Holly Ventures
Holly Ventures is a seed-stage venture capital firm based in San Francisco, dedicated to supporting cybersecurity startups. The firm focuses on providing investment capital and hands-on assistance to founders from the very beginning of their company-building journey. Led by John Brennan, the Founder and Managing Partner, Holly Ventures emphasizes direct engagement and early-stage operational support. The firm targets cybersecurity entrepreneurs, offering them not only funding but also access to a valuable network of industry connections. Holly Ventures aims to empower founders as they navigat
Investing activity
Holly Ventures appears in 1 AI deal tracked by the AI Lounge deals desk, rounds totalling $13M. The rounds are mostly Seed, with a median round size of $13M. The most recent is Beacon Security (Seed, $13M, Jul 2026).
Holly Ventures most often invests alongside SVCI and AlphaDrive Ventures, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Holly Ventures
What AI companies has Holly Ventures invested in?
Holly Ventures's AI investments include Beacon Security. The 1 round on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Holly Ventures based?
Holly Ventures is based in San Francisco, California, United States.
What stage does Holly Ventures invest at?
In the rounds tracked on AI Lounge, Holly Ventures has invested at Seed, with a median round of $13M.
Who does Holly Ventures co-invest with?
Holly Ventures's most frequent co-investors on AI Lounge are SVCI (1 deal) and AlphaDrive Ventures (1 deal).
How can founders reach Holly Ventures?
Founders on AI Lounge can see Holly Ventures's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add Holly Ventures to their Investor Pipeline to track the conversation.