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Jason Cornelius

Founder

CEO at Perseus Defense

San Francisco, California, United States

FoundedPerseus Defense · YC

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About

Jason Cornelius co-founded Perseus Defense. He worked on the NASA Titan Dragonfly rotorcraft program and led an advanced concepts team on Mars helicopter design using AI and supercomputing. He teaches aerospace engineering at Stanford.

CEO at Perseus DefenseYC S25

Intro paths

YC

Jason went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Tyler Bosmeny, General Partner at Y Combinator — the partner who ran Perseus Defense's batch and knows the company first-hand. YC profile ↗

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In turn, Jason can intro founders to Perseus Defense's investors below.

Perseus Defense's investors · 24

Alumni VenturesManchester · $100K – $10M checks · since 2025Batch VenturesBlast.Club$5.5M checksBow CapitalMenlo Park · $5M checks · since 2025Calm VenturesSan FranciscoGaingelsNew York · $200K – $500K checksGlobal Founders CapitalBerlin · $1M checksKarman VenturesAustin · $100K – $500K checksLobster CapitalSan Francisco · since 2025Maiora Rebel VenturesMetsu CapitalOlive Tree CapitalBostonOurCrowdJerusalemPhosphor CapitalPioneerToronto, OntarioPrincipal Venture PartnersPalo AltoRebel FundSan Francisco · $100K – $5M checks · since 2025Remagine VenturesTel AvivRice CapitalCovinaSparkwave Capitalsince 2025Tekedia CapitalLagos · $1K checksWefunderSan FranciscoWhat If VenturesFriscoY CombinatorSan Francisco · $500K checks · since 2025

Co-founders at Perseus Defense

SMSteve Messinger
Steve MessingerCTO
JC
Jason Cornelius Steve MessingerFounder

Frequently asked questions

Who is Jason Cornelius?
Jason Cornelius co-founded Perseus Defense. He worked on the NASA Titan Dragonfly rotorcraft program and led an advanced concepts team on Mars helicopter design using AI and supercomputing. He teaches aerospace engineering at Stanford.
Where does Jason Cornelius work?
Jason Cornelius is CEO of Perseus Defense.
What companies did Jason Cornelius found?
Jason Cornelius founded Perseus Defense.

Founder mafias

About this profile. Compiled from public sources — Perseus Defense'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