Quadsat
Provides RF detection and geolocation of emitters and jammers, UAV-borne EW payloads and spectrum operations software.
Patriot air-defence radar forward deployed in Poland, 2019. Photo: U.S. Army 10th AAMDC photo by Sgt. 1st Class Christopher Smith, Public domain (PD-USGov-Military-Army).
Round details
Series A extension, €5M, Jul 2025.
Why it matters
Pivoted from satellite antenna testing to defence spectrum intelligence; detects signals up to 150 km across 2 to 18 GHz.
Key figures confirmed by multiple sourcesLast checked 21 October 2026
Quadsat: key questions
What does Quadsat do?
Provides RF detection and geolocation of emitters and jammers, UAV-borne EW payloads and spectrum operations software.
Where is Quadsat based?
Quadsat is headquartered in Odense, Denmark. It was founded in 2017.
How much funding has Quadsat raised?
Total funding is ~$18.7M, based on announced and reported rounds. Latest round: Series A extension, €5M, Jul 2025.
Who are Quadsat's investors?
Notable investors include Join Capital, North Ventures, Seraphim Space.
Sources
- tech.eu/2025/07/17/quadsat-raises-eur5m-to-advance-defence-grade-rf-geolocation-technology
- quadsat.com/
- caplight.com/company/quadsat
Figures come from company announcements and press reports. Spot an error? Send a correction. Nothing here is investment advice.
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