Perseus Defense

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.

High-Level Overview

Perseus Defense is a defense technology startup focused on developing affordable, scalable, and mass-producible guided micro-missile systems designed to neutralize hostile drones. Their flagship product is a 15-inch guided missile pod system that provides rapid, precise kinetic counter-unmanned aircraft system (Counter-UAS) capabilities. Perseus primarily serves U.S. government agencies such as the Department of Defense and Homeland Security, addressing the urgent need for effective drone defense to protect critical infrastructure, military convoys, and forward bases. Their solution is positioned as "America’s Iron Dome for drones," offering a low-cost alternative to existing expensive and slow counter-UAS technologies, with missiles costing less than $10,000 each—significantly cheaper than current options[1][2][3][4][5].

Origin Story

Founded in 2025 by aerospace engineers Jason Cornelius and Steve Messinger, Perseus Defense emerged from their shared expertise in aerospace and autonomous systems. Jason, with a background at NASA leading advanced aerospace vehicle design and teaching at Stanford, and Steve, a swarm robotics expert with experience at Boeing, combined their skills to tackle the growing threat of drone warfare. The idea was born from recognizing the inadequacies of existing counter-UAS solutions, particularly their cost, speed, and scalability. Since incorporation in May 2025, Perseus has rapidly developed functional prototypes, engaged in over 60 discovery calls with defense stakeholders, and joined Y Combinator’s Summer 2025 batch, signaling strong early traction and validation from the defense community[3][4][5].

Core Differentiators

• Affordable, Mass-Produced Micro-Missiles: Perseus focuses on producing guided micro-missiles that cost less than $10,000 each, making them 10x cheaper than current solutions[4][5].
• High-Velocity Kinetic Interceptors: Their 15-inch missiles use kinetic impact to neutralize drones quickly and precisely, optimized for rapid deployment and layered airspace defense[1][2].
• Scalable and Flexible Deployment: The system can be deployed on trucks, boats, UAVs, or fixed installations, supporting diverse operational environments including convoys and critical infrastructure protection[3][4].
• Advanced Guidance and Control: Incorporates sophisticated guidance algorithms for accurate threat engagement, enabling defense against single drones and coordinated swarms[2][4].
• Strong Government Collaboration: Close partnerships with U.S. defense agencies ensure alignment with national security needs and integration into existing defense frameworks[1][3].

Role in the Broader Tech Landscape

Perseus Defense is riding the critical trend of escalating drone threats in modern warfare and homeland security. As drones become cheaper and more accessible, traditional counter-UAS systems have struggled with cost, speed, and scalability. The timing is crucial as the U.S. military urgently seeks low-cost, rapid-response solutions to protect troops and infrastructure from swarming and high-speed drone attacks. Perseus’s approach of mass-produced, affordable guided micro-missiles addresses these market forces by enabling widespread deployment and operational readiness. Their innovation could reshape force protection strategies and influence the broader defense ecosystem by setting new standards for cost-effectiveness and scalability in counter-drone technology[1][3][5].

Quick Take & Future Outlook

Looking ahead, Perseus Defense is poised to scale manufacturing and deployment, potentially becoming a mandatory defense component for U.S. military convoys, bases, and critical infrastructure. The ongoing evolution of drone warfare and the increasing reliance on unmanned systems will likely drive demand for their solutions. Trends such as swarm drone tactics and asymmetric aerial threats will shape their product development and market expansion. Perseus’s influence may extend beyond military applications into homeland security and allied defense markets, solidifying its role as a cornerstone in America’s layered drone defense strategy—truly embodying the vision of an "Iron Dome" for the drone era[3][5][6].