Fundraising Fox
John M. Jack
InvestorBoard Partner at Andreessen Horowitz · CEO Partner at Harmonic Growth Partners · Venture Partner at Shield Capital
San Francisco, California
Writes $100K – $5M checks · typically $1.5M
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About
Former CEO of Fortify (acquired by HP).
Invests in
AI & Machine LearningCybersecurityDefense TechRoboticsSpace Tech
Investments
Per curated public sources.
Colleagues at Andreessen Horowitz
Network2
Investors connected to John in public investor directories — a warm-intro map.
Frequently asked questions
- Who is John M. Jack?
- Former CEO of Fortify (acquired by HP).
- Where does John M. Jack work?
- John M. Jack is Board Partner at Andreessen Horowitz and CEO Partner at Harmonic Growth Partners and Venture Partner at Shield Capital.
- What does John M. Jack invest in?
- John M. Jack invests in AI & Machine Learning, Cybersecurity, Defense Tech, Robotics, Space Tech.
- What check size does John M. Jack write?
- John M. Jack typically writes checks of $100K – $5M.
- What companies has John M. Jack invested in?
- Investments tracked here include Armorcode, CipherCloud, Illumio, Oak9, ZeroFox.
Founder mafias
University of California, Berkeley mafia1,342
Also came through, then founded or led a company.
Andreessen Horowitz mafia93
Also came through, then founded or led a company.
Shield Capital mafia7
Also came through, then founded or led a company.
Illumio mafia6
Also came through, then founded or led a company.
Contrast Security mafia3
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Andreessen Horowitz's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights