Unclassified // open-source data on European defence tech
Electronic Warfare sector
Stockholm, Sweden

TERASi

KTH spinout building millimetre-wave AirCore radios that form narrow, hard to detect and hard to jam links for tactical communications.

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).

Latest round€11MSeed, Sep 2026
Total raisedUndisclosedNot disclosed

Round details

Seed, €11M, Sep 2026.

Why it matters

NATO Innovation Fund's first direct investment in Sweden; RU1 radio selected as secure backbone in the Swedish Armed Forces Tactical 2.0 project.

Key figures confirmed by multiple sourcesLast checked 21 October 2026

TERASi: key questions

What does TERASi do?

KTH spinout building millimetre-wave AirCore radios that form narrow, hard to detect and hard to jam links for tactical communications.

Where is TERASi based?

TERASi is headquartered in Stockholm, Sweden. It was founded in 2020.

How much funding has TERASi raised?

A cumulative total is not disclosed. The latest round was: Seed, €11M, Sep 2026.

Who are TERASi's investors?

Notable investors include NATO Innovation Fund, JOIN Capital, In-Q-Tel.

Sources

  1. tectonicdefense.com/terasi-raises-e11m-12-5m-seed-led-by-nif-and-join/
  2. terasi.io/
  3. nif.fund/portfolio

Figures come from company announcements and press reports. Spot an error? Send a correction. Nothing here is investment advice.