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Perseus Defense

America's Golden Dome for Drones

Perseus Defense is building a mass-manufactured Counter UAS solution for the Department of Defense and Department of Homeland Security. Current solutions are one-to-one, too dangerous for use on U.S. soil, and orders of magntiude more expensive than the threats they defeat. Our self-guided missile platform is man-portable and multi-domain capable. It senses, engages, and eliminates threats with drastically reduced cost per engagement over existing kinetic solutions. Solving this critical national security problem requires understanding complex DoD needs along with actual rocket science including aerodynamics, guidance, navigation, control, and much more. Jason and Steve met at Penn State while they pursued their PhD and MS in aerospace engineering, respectively. Their past experiences designing space helicopters for NASA, making Boeing airliners land autonomously, controlling swarms of unmanned autonomous systems, teaching aerospace engineering at Stanford, winning multiple ONR and DOE engineering competitions, and founding an international drone competition makes them the perfect team to create transformative solutions protecting our service members. "If you build this, it will be mandatory equipment for every truck, boat, and convoy in the U.S. Military. We're talking thousands of units." - Former DoD Procurement Officer The White House just released Executive Order, "Unleashing American Drone Dominance" which adds billions of dollars, government support, and streamlined regulations to enable the development of our product. Traction: Jason and Steve used more than 100 end-user interviews across the DoD and DHS to shape the product to something of critical need to both boots on the ground and DoD purchasers. In 8 short weeks following a strict 2-week design-build-test cycle, the team has gone through 4 major guided missile iterations with over 30 live-fire flight tests. They were invited to Ft. Hood to present their platform to the 1st Cavalry Division, and also briefed the Pentagon and U.S. congressmen on current U.S. vulnerabilities to advanced drone technology. Perseus Defense is actively standing up cooperative research agreements with U.S. Army DEVCOM's Applied Research Laboratory, Aviation and Missile Center, Armaments Center, and High Performance Computing Modernization Program.
Active Founders
Jason Cornelius
Jason Cornelius
Co-founder & CEO
Co-founder & CEO of Perseus Defense. I helped lead major parts of the NASA Titan Dragonfly space helicopter. I also secured half a million of NASA HQ funding to lead an advanced concepts team using AI/ML/supercomputing to design next generation Mars helicopters. I teach aerospace engineering at Stanford, fly airplanes, have 7 scuba certifications, and speak four languages. I wrote a book in four months last fall, "Dare to Dream: A Small-town Kid's Journey to NASA."
Steve Messinger
Steve Messinger
Founder
Co-founder & CTO of Perseus Defense. Swarm robotics researcher focused on building and deploying real-world autonomy. I’ve won swarm robotics competitions, built autonomy that allows Boeing aircraft to land themselves, and developed collaborative behaviors for unmanned boats.
Company Launches
Perseus Defense 🚀 Building America's Iron Dome for Drones
See original launch post

Hey everyone 👋 Happy 4th of July!

We’re Jason from NASA and Steve from Boeing – and now, we’re co-founders of Perseus Defense.

TL;DR — We're building guided micro-missiles that shoot down drones in combat

Ask: Do you know end-users across the Department of Defense (DoD) and Department of Homeland Security (DHS) that could benefit from attritable anti-drone solutions?

https://youtu.be/o17lMdLuZWQ

❌ The Problem

Today’s Counter-Unmanned Aerial System (CUAS) solutions are too expensive, too heavy, too slow, and too ineffective.

  1. 70-80% of battlefield fatalities come from drone strikes
  2. $100,000+ kinetic solutions are used to counteract $500 drones
    • $500 drones are eliminating $100M assets
  3. Current solutions are easily defeated with fiber-optic, visual inertial odometry, or simple waypoint navigation missions

$500 Ukrainian drones decimate $100M Russian strategic bombers

🚀 ** Our Solution **

Perseus is creating the first affordable guided micro-missile pods to bolster American defense capabilities both at home and abroad.

Our micro-guided missiles detect, identify, and eliminate incoming threats before they can reach their intended target. They cost less than $10k, which is 2 orders of magnitude less than the current best solutions.

Steve and I felt we could create a better solution to the CUAS problem and decided we had a moral obligation to follow through on that belief. We quit our old jobs and put it all on the line to fast-track this capability for the U.S. and our allies.

Perseus Defense Mark-II Guided Missile Test (Prototyped in 1 week)

The Team

Jason and Steve studied aerospace engineering together at Penn State University and founded Perseus Defense in 2025.

Jason (CEO) designed NASA’s Titan Dragonfly space helicopter, led a NASA advanced projects team to design a next-generation Mars helicopter, and has contributed to multiple aerospace programs across NASA, the DoD, and commercial sectors. He holds a PhD in aerospace engineering with specializations in aircraft design, supercomputing, and machine learning. Jason also taught Aerodynamics at Stanford, speaks four languages, and founded an international drone competition.

Steve (CTO) has worked as a swarm robotics researcher focused on building and deploying real-world autonomy. He won swarm robotics competitions with the Office of Naval Research, built autonomy that allows commercial aircraft to land themselves at Boeing, and developed collaborative behaviors for Unmanned Surface Vehicles at Applied Intuition.

Prepping a UAS-mounted Missile (Prototyped in 1.5 weeks)

🙏 Our Ask:

If you answer “yes” to any of these, we’d love your help:

  • Have you been wondering how $500,000 CUAS solutions are supposed to combat $1,000 drones at scale?
  • Can you introduce us to end-users across the DoD or DHS that are looking for better solutions to protect our troops, our country, and our allies?

👉 Contact us at founders@perseusdefense.com

Your help can make a huge difference as we work to protect the folks we care about abroad and here at home. Thank you!

Jobs at Perseus Defense
Austin, TX, US
$110K - $180K
0.10% - 1.00%
1+ years
Austin, TX, US
$110K - $180K
0.10% - 1.00%
1+ years
Austin, TX, US
$110K - $180K
0.10% - 1.00%
1+ years
Austin, TX, US
$110K - $180K
0.10% - 1.00%
1+ years
Austin, TX, US
$110K - $180K
0.10% - 1.00%
1+ years
Perseus Defense
Founded:2025
Batch:Summer 2025
Team Size:3
Status:
Active
Primary Partner:Tyler Bosmeny