We are dedicated to overcoming the asymmetric challenges inherent to the future of national security.

Los Angeles, CA
On both sides of the Atlantic, the drone threat has become more sophisticated, more accessible & more urgent. To discuss the capabilities needed to meet this challenge across NATO states, we welcomed officials from the Hellenic Ministry of National Defence to Epirus HQ. And, yes, our Greek-inspired company name may have come up, too!
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Yesterday, Epirus high-power microwave was demonstrated to @SecWar & @USWREMichael. Its one-to-many capability pairs low-cost, low-collateral effects with an unlimited magazine to defeat swarms, fast-moving and fiber-optic-guided drones. HPM is effective, proven and ready to deploy at scale as part of a layered defense architecture.
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Time to scale.
Today, the first milestone test of Golden Dome for America (GDA) was a full mission success — and I was honored to witness it firsthand. Cutting edge directed energy was harnessed and the Dynamic Defense Autonomous Defeat (DDAD) system flawlessly and autonomously cued, targeted, and eliminated a multitude of incoming threats. This test was executed on schedule — and dynamically defeated every threat. I watched our elite warfighters integrate with next-generation technology to stop incoming drones and cruise missiles dead in their tracks. Traditional Primes and emerging Primes are competing, collaborating, and winning—delivering on President Trump’s priority. This historic milestone was only made possible by the One Big Beautiful Bill—giving us the funding to deliver on the ultimate shield to protect America. President Trump is making President Reagan’s Strategic Defense Initiative (SDI) vision a reality. With Golden Dome, the War Department will defend our homeland more powerfully than ever before. Golden Dome is real, powerful, and on track.
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Threats are scaling. So are we. As we enter a new phase of operational growth, we're pleased to welcome Mark Cuyler as COO and Mark Horton as CPO, two leaders who have built at this level before. Read more: epirusinc.com/press-releases… Welcome aboard, Mark & Mark.
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Capability proven. Contracts secured. Epirus is back on @SVDG_official's #NatSec100 for the fourth year in a row.
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"Epirus 100% could fry these and turn them off." @JTLonsdale
In this clip, Joe Lonsdale weighs in on the mysterious drone swarms that buzzed Barksdale Air Force Base for a full week and whether the incident at our nuclear B-52 base was a foreign adversary probing our nuclear infrastructure or a psyop. Joe, the founder of defense tech company Epirus, then takes on the China and Taiwan question: if Beijing seizes TSMC, can America still build drones and AI weapons systems? He explains why losing Taiwan could set AI back 5 to 10 years and exposes America's hidden dependence on China across rare earths, chips, and the global drone supply chain. @JTLonsdale
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The defense industrial base was built for a different era. Sixth Domain threats don't wait for five-year acquisition cycles. Neo-Prime + OEM partnerships are the fix. Epirus + @GD_LandSystems are proof. Read more: realcleardefense.com/article…
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Swarm defeat with Epirus HPM? "It all happens in less than a second." @ShawnRyan762
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Epirus retweeted
Could the Golden Dome Stop Drone Swarms? “Everything’s a target now. You can’t say anymore that you’re safe just because you’re offshore or away from the battlefield. It’s not improbable for even something like a carrier to become susceptible to a drone attack. Warfare is changing—it’s a completely new way of fighting.” @epirus
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Epirus retweeted
Andy Lowery joins me for an outdoor demo of cutting-edge defense technology, showcasing the Leonidas autonomous ground vehicle and its role in modern battlefield protection. Built through a collaboration between Epirus, General Dynamics Land Systems, and Kodiak Defense, this mobile system integrates advanced radar, autonomous navigation, and directed energy capabilities to detect, track, and neutralize drone threats in real time. I need one of these for the studio. 😂 @epirus
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Epirus retweeted
I’ve been waiting a long time to sit down with Andy Lowery, the CEO of Epirus, a defense tech company leading the charge in counter-drone warfare. We get into the development of their flagship Leonidas system, designed to neutralize drone swarms, and how this technology is changing modern combat. Andy shares his background as a U.S. Navy nuclear engineer serving aboard an aircraft carrier before transitioning into leadership roles at Raytheon and into the startup world. He also talks about bringing a Leonidas system out to Vigilance Ranch where he gave a complete breakdown of how it works. You can watch both his full episode and the Leonidas demo video now on the Shawn Ryan Show YouTube channel. @epirus
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Epirus retweeted
“We had 12 drones come and surveil a nuclear site multiple times, and there's a struggle. They got overflown by swarms—high-tech, with a much longer range, and totally impervious to jamming. A wave of 12 completely resistant. It flew over, surveilled everything, and flew back..." What do you think it was? @epirus
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Epirus retweeted
The OFFICIAL preview with my next guest, Andy Lowery, the CEO of Epirus. “We had 12 drones come and surveil a nuclear site multiple times..." @epirus
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Speed offers no sanctuary for drones operating against Leonidas' electromagnetic interference. Leonidas defeats fast-moving drone targets with high-power microwave energy enabled by its active electronically scanned array, high-speed gimbaling and real-time targeting software. Rapid maneuvers and complex flight patterns are no match for software-defined HPM.
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Epirus retweeted
Drone swarms are here. This technology could stop them.
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Epirus retweeted
The threat of drone swarms presents one of the biggest challenges to the modern battlefield. And the million dollar question (likely billion) is… how do you stop them? Well if you ask @epirus, they think they’ve found the solution. On the latest episode of Access Granted, we’re diving into the technology being developed to counter the threat of swarms and most importantly, we’re putting it to the test. 🎬 Full video out now. Link below.
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Epirus retweeted
As the U.S. prepares to host the 2026 World Cup, we face an unprecedented security challenge. The threat of drones is putting our soft targets at risk. We must get the right infrastructure and counter-drone systems in place now to protect the public. go.shr.lc/4sEsikQ - @washtimesoped
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