Hidden Level
22 jobsSeries C+ · Syracuse, NY
Detects drones through passive radio-frequency airspace sensing.
$138.5M raisedFunded Feb 2025
Real-time AI that detects emerging risks and threats from public data.
$1.5B raisedFunded Aug 2025
Improves kinetic weapon precision.
$7.1M raisedFunded May 2024
Distributed Spectrum
9 jobsSeries A · New York, NY
Monitors real-time RF environments.
$30.6M raisedFunded Mar 2025
Automates radio-frequency spectrum coordination for federal and commercial operators.
$5M raisedFunded Mar 2026
Nidus Technologies
2 jobsNew York, NY
Applied AI for defense manufacturing at scale.
How this list is built
BuildList includes active companies with a canonical sector and headquarters metro. Hiring counts come from verified openings collected directly from company applicant-tracking systems.