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Alexander Harstrick
InvestorManaging Partner, Co-Founder at J2 Ventures
Boston, Massachusetts, United States
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About
Alexander Harstrick melds Army Reserve intelligence and special-operations experience with roles at Defense Innovation Unit and AFWERX—where he helped deploy nearly $2B—and translates between Silicon Valley and the Pentagon.
Contact· published on Alexander's own website
Invests in
AI & Machine LearningCybersecurityDefense TechHealthtechSpace Tech
Deals · 1
Code MetalBoard seat
via J2 Ventures · filed Jul 2026
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Investor
AalyriaAether BiomedicalApexArkenstone DefenseDruid SoftwareElevateLightSourceMeta PlatformsMicron BiomedicalMusubiParavision
Sources: SEC Form D filings · curated public sources.
Colleagues at J2 Ventures
Network9
Investors connected to Alexander in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Alexander Harstrick?
- Alexander Harstrick melds Army Reserve intelligence and special-operations experience with roles at Defense Innovation Unit and AFWERX—where he helped deploy nearly $2B—and translates between Silicon Valley and the Pentagon.
- Where does Alexander Harstrick work?
- Alexander Harstrick is Managing Partner, Co-Founder at J2 Ventures.
- What does Alexander Harstrick invest in?
- Alexander Harstrick invests in AI & Machine Learning, Cybersecurity, Defense Tech, Healthtech, Space Tech.
- What boards does Alexander Harstrick sit on?
- Alexander Harstrick holds tracked board seats at Code Metal.
- What companies has Alexander Harstrick invested in?
- Investments tracked here include Aalyria, Aether Biomedical, Apex, Arkenstone Defense, Code Metal, Druid Software, Elevate, LightSource, Meta Platforms, Micron Biomedical, Musubi, Paravision.
About this profile. Compiled from public sources — J2 Ventures's own website, regulatory filings 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