ExDECS completes factory acceptance and government acceptance testing; additional testing and evaluation of HPM system funded by ONR PEGASUS contract
Los Angeles, Calif—April 29, 2025— Epirus announced today the delivery of an Expeditionary Directed Energy Counter-Swarm (ExDECS) system to Naval Surface Warfare Center Dahlgren to support the U.S. Marine Corps. ExDECS, a derivative of the company’s Leonidas Expeditionary system, is an energy-based, high-power microwave (HPM) counter-drone capability.
The mobile, solid-state HPM system was developed as part of a contract awarded by the U.S. Navy’s Office of Naval Research (ONR). ONR awarded Epirus an additional follow-on contract in September 2024 to support further testing and evaluation of the system as part of the Preliminary Evaluation of Ground-based Anti-Swarm UAS System (PEGASUS) program.
Upon signing of the Department of Defense Form DD250, which documents Factory Acceptance Testing, the ExDECS prototype was shipped to Naval Surface Warfare Center Dahlgren Division earlier this year where it completed Government Acceptance Testing. The system will support the U.S. Marine Corps’ experimentation objectives to evaluate the benefits of HPM to the Low Altitude Air Defense (LAAD) mission and enhance Ground Based Air Defense (GBAD) capabilities.
Leonidas Expeditionary was introduced in 2024 and is the latest addition to the company’s suite of scalable high-power microwave systems for counter-electronics applications. The system leverages the scalable Leonidas energy-based HPM technology platform and is designed to integrate with light tactical vehicles, companion trailers and other platforms to strengthen expeditionary short range air defense capabilities.
“Drone warfare is changing the fight — fast. Systems like ExDECS give Marines a decisive advantage by neutralizing multiple electronic threats at once with a single system — what we call a one-to-many capability,” said Andy Lowery, CEO of Epirus. “This delivery is a critical step toward fielding non-kinetic counter-swarm solutions that enhance the mobility, survivability, and lethality of our Marine forces.”
About Epirus:
Epirus is a high-growth technology company dedicated to overcoming the asymmetric challenges inherent to the future of national security. Epirus' flagship technology, Leonidas, is a software-defined, high-energy, high-power microwave platform, built using intelligent power management techniques which allow power- hungry systems to do more with less. For more information on Epirus’ solutions or to request an interview with subject matter experts, please contact media@epirusinc.com.
To learn more about Leonidas Expeditionary and Epirus’ suite of scalable high-energy HPM systems, visit Booth 1413 at Modern Day Marine in Washington, D.C.
