Stark raises €500M: defense drones valued at €3.5B

What happened?

Berlin-based startup Stark Defence has closed a €500 million funding round led by Sequoia Capital and Founders Fund, according to company confirmation to Sifted and Bloomberg. The deal values the company at over €3.5 billion, tripling the €1 billion it reached in early 2026. Founded in 2024, Stark develops strike drones for military use, positioning itself as a key European player in autonomous defense. The round also includes participation from undisclosed institutional investors, bringing the company's total capital raised to over €700 million since its founding.

Why is it important?

This round is the largest ever by a European defense startup, far exceeding the €100 million raised by Helsing in 2024 or the €150 million by MT Aerospace. It reflects growing US venture capital interest in European military tech, driven by the war in Ukraine and the need to reduce reliance on non-autonomous systems. Moreover, Stark's valuation (over €3.5 billion) places it among Europe's most valuable unicorns, behind only companies like Celonis (€13 billion) or Revolut (€33 billion). For context, global investment in defense startups was just $1.2 billion in 2021, while in 2025 it exceeded $8 billion, according to PitchBook. This accelerated growth signals a structural shift in the arms industry, where tech startups are displacing traditional contractors.

Consequences for the sector

• Boost to defense investment: More European defense startups are expected to attract Silicon Valley capital, increasing competition with traditional manufacturers like Rheinmetall or BAE Systems. According to Sifted data, European defense startups raised €1.2 billion in 2025, up 40% year-on-year. The entry of Sequoia and Founders Fund—experienced in scaling tech companies—could catalyze an ecosystem similar to the US, where Anduril and Palantir have already reached billion-dollar valuations.
• Ethical and regulatory debate: Massive funding for autonomous drones reignites debate over lethal autonomous weapons systems (LAWS) and the need for international regulation. The UN has been discussing a binding treaty for years without concrete progress. The EU, for its part, published a defense strategy in 2024 promoting strategic autonomy but does not specifically address LAWS. Organizations like Amnesty International have warned about the risks of delegating life-and-death decisions to machines, especially in asymmetric conflicts.
• Tech job creation: Stark plans to expand its engineering team in Berlin, attracting talent in AI, robotics, and embedded systems. The company currently has 120 employees and expects to double its workforce in the next 12 months. This will help position Berlin as a defense tech hub, competing with cities like Munich (home to Airbus Defence) or Paris (Dassault).

What should readers know?

Stark is not publicly traded and its technology is classified, but its drones are known to incorporate AI for autonomous navigation and target recognition, using neural networks trained on real combat data (provided by undisclosed government partners). The company has received orders from several European governments, though it has not disclosed specific contracts. According to sources close to the company, Stark's drones can operate in coordinated swarms and evade electronic warfare systems through dynamic frequency hopping. The round includes new investors, but full names have not been disclosed. The founders are former engineers from Airbus and DLR (German Aerospace Center), with experience in programs like the Eurofighter and the nEUROn combat drone. Notably, Stark has not yet completed live-fire tests in combat conditions, so part of its valuation is based on future expectations.

“Europe needs to build its own autonomous defense capability. Stark is at the forefront of that transformation,” a Sequoia spokesperson said. “We believe the combination of AI, robotics, and agile manufacturing can redefine the battlefield, and Stark has the team and vision to lead this change in Europe.”

Compared to previous events, this round echoes the $450 million investment Anduril received in 2022, which catapulted it to an $8.5 billion valuation. However, the European context is different: EU defense spending has increased 20% since 2022 but remains fragmented across countries. Stark could benefit from initiatives like the European Defence Fund (€8 billion by 2027) and the EDIRPA project for joint military procurement. Nevertheless, reliance on US investors raises questions about European tech sovereignty, a sensitive topic in Brussels.

For readers, the key takeaway is that Stark is not just another startup but a symptom of a profound transformation: the convergence of Silicon Valley and the military industry, which promises to accelerate innovation but also poses unprecedented ethical and regulatory dilemmas. In the coming months, Stark is expected to announce new contracts and possibly an additional funding round before an eventual IPO, though timelines are uncertain.