Unclassified // open-source data on European defence tech
Space & ISR sector
Joensuu, Finland

Kelluu

Operates autonomous hydrogen-powered airships providing persistent aerial surveillance between satellites and drones.

Italy at night, seen from the International Space Station. Photo: NASA, Public domain (PD-USGov-NASA-AP).

Latest round€15MSeries A, 14 Apr 2026
Total raisedUndisclosedNot disclosed

Round details

Series A, €15M, 14 Apr 2026.

Why it matters

NIF's first direct Finnish investment; NATO DIANA since 2024; Maven Smart System integration at Steadfast Dart 26; Ottawa office.

Key figures confirmed by multiple sourcesLast checked 21 October 2026

Kelluu: key questions

What does Kelluu do?

Operates autonomous hydrogen-powered airships providing persistent aerial surveillance between satellites and drones.

Where is Kelluu based?

Kelluu is headquartered in Joensuu, Finland. It was founded in 2018.

How much funding has Kelluu raised?

A cumulative total is not disclosed. The latest round was: Series A, €15M, 14 Apr 2026.

Who are Kelluu's investors?

Notable investors include NATO Innovation Fund, Keen Venture Partners, Tesi.

Sources

  1. nif.fund/news/the-nato-innovation-fund-leads-e15mn-series-a-in-kelluu-to-build-europes-per
  2. dronelife.com/2026/04/14/kelluu-raises-15m-airship-funding-nato/

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

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