Unclassified // open-source data on European defence tech
Autonomy & AI sector
Helsinki, Finland

NestAI

Defence AI lab building NestOS, a modular battlefield operating system and physical AI for unmanned vehicles and C2.

Lithuanian soldier with Raven drone and ground station, Hohenfels. Photo: U.S. Army photo by Cpl. Eric Perez, Public domain (PD-USGov-Military-Army).

Latest round€100MVC round, Nov 2025
Total raised~€100M~€100M

Round details

VC round, €100M, Nov 2025.

Why it matters

Opened a Tallinn R&D office in Sep 2026 after a letter of intent with Finnish and Estonian Defence Forces; headcount near 180.

Key figures confirmed by multiple sourcesLast checked 21 October 2026

NestAI: key questions

What does NestAI do?

Defence AI lab building NestOS, a modular battlefield operating system and physical AI for unmanned vehicles and C2.

Where is NestAI based?

NestAI is headquartered in Helsinki, Finland. It was founded in 2024.

How much funding has NestAI raised?

Total funding is ~€100M, based on announced and reported rounds. Latest round: VC round, €100M, Nov 2025.

Who are NestAI's investors?

Notable investors include Nokia, Tesi, PostScriptum.

Sources

  1. resiliencemedia.co/finlands-nestai-expands-to-estonia/
  2. yle.fi/a/74-20214896
  3. caplight.com/company/nestai

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

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