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Data as of 28 October 2026

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Stark (SKD SE)

Germany Germany · Loitering munitions / unmanned systems · private

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Summary

Software-defined, mass-producible unmanned strike systems for NATO allies, spanning loitering munitions, uncrewed surface vessels and multi-domain command software. Flagship is the Virtus eVTOL one-way effector (>130 km range, 75 min endurance), alongside Cascade, Gambit, the Vanta USV family and the Minerva swarm-control software.

Notable

Went from founding to frontline relevance in roughly 13 months. Raised a €500M Series C in June 2026 co-led by Sequoia Capital and Founders Fund at a ~€3.2-3.5B valuation. Co-founded by Quantum Systems founder Florian Seibel; CEO Uwe Horstmann joined from Project A. Holds a ~€269M share of a ~€540M Bundeswehr loitering-munition package split with Helsing.

Key facts

Headquarters
Berlin
Founded
2024
Role
builder
Category
Defense
Sector
Loitering munitions / unmanned systems
Status
private
Employees
~300-450
CEO
Uwe Horstmann
Founders
Florian Seibel, Johannes Schaback
Funding
~$670M total
Valuation
~€3.2-3.5B

Virtus (OWE-V)

Vanta 12 (USV)

Photos

Virtus (OWE-V)
Virtus (OWE-V)Credit: STARK · Source · Rendering
Cascade (OWE-T)
Cascade (OWE-T)Credit: STARK · Source · Rendering
Gambit (OWE-Q)
Gambit (OWE-Q)Credit: STARK · Source · Rendering

Software and autonomy

Minerva

Multi-domain C2 / swarm command software

Source