Epirus, founded in 2018 and based in Torrance, California, makes Leonidas, a high-power microwave system that disables drone swarms. It raised a $250 million Series D in March 2025.
At a glance
| Price from | Custom |
| Best for | Bases defending against drone swarms |
From Epirus's own website.
What stands out
- One system stops many drones at once
- Delivered to the US Army
Worth knowing
- Army prototype buys capped at six so far
- Short engagement range
How it ranks
Epirus is ranked 9th of 10 in Best Defense Tech Startups (Lister Score 87.6).
#9 in Best Defense Tech Startups · Lister Score 87.6
Epirus received a $43.5 million US Army contract for second-generation Leonidas systems, adding to prototypes the Army has fielded since 2023..
| Rank | Best Defense Tech Startups | Score |
|---|---|---|
| 1 | Anduril Industries | 97.3 |
| 2 | Shield AI | 96.1 |
| 3 | Helsing | 95.0 |
| 4 | Saronic Technologies | 93.8 |
| 5 | Castelion | 92.6 |
| 6 | Quantum Systems | 91.4 |
| 7 | Hadrian | 90.1 |
| 8 | CHAOS Industries | 88.9 |
| 9 | Epirus | 87.6 |
| 10 | Mach Industries | 86.3 |
Frequently asked questions
How does Epirus rank on Lister?
Epirus is ranked 9th of 10 in Best Defense Tech Startups (Lister Score 87.6).
Appears in
Add this badge to your site
If you work at Epirus, paste this code into your website to show where it ranks on Lister. The badge links to the ranking and updates within a day when the rank changes.