European defence tech gets a reality check

We have spent the last two years listening to venture capitalists talk about the 'great pivot' toward defense tech. The narrative was simple: Europe woke up, realized it couldn't rely solely on others for security, and decided that startups were the answer to outdated military hardware. But at the recent Resilience Conference in London, that rosy picture hit a wall of reality.

As a founder, you have to learn to distinguish between enthusiasm and actual movement. Right now, the European defense sector is full of the former, but remarkably light on the latter. The 'defense tech' label has become a convenient way for hardware startups to chase higher valuations, yet the actual mechanisms for buying and deploying this tech remain stuck in the twentieth century.

The Sovereignty Problem

The core issue in Europe isn't a lack of engineering talent or even a lack of capital; it is the fundamental friction of sovereign borders. In the U.S., a defense startup sells to the Department of Defense. It’s one massive, albeit bureaucratic, customer. In Europe, a builder is looking at a fragmented market where every nation wants to protect its own 'national champions.'

Investors are starting to realize that the 'Scale-up Europe' dream doesn't easily apply to munitions, drones, or AI-driven surveillance. When a French startup builds a superior sensor, the German procurement office doesn't automatically line up to buy it. They want a German solution. This creates a ceiling for growth that most VC models aren't built to handle. If you are building in this space, you aren't just fighting incumbents; you are fighting centuries of protectionist industrial policy.

Dual-Use is a Double-Edged Sword

For a long time, the advice given to founders was to build 'dual-use' technology—products that work for both commercial logistics and battlefield coordination. The idea was that if the military takes too long to sign a contract, you can always sell to Amazon or Maersk. That sounds great on a slide deck, but the reality is that trying to serve two masters often results in a product that serves neither well.

Military requirements are brutal. They need hardware that works in electronic warfare environments, with zero connectivity, and under extreme physical stress. Commercial markets want cost-efficiency and ease of use. At the London conference, the quiet admission among insiders was that the most successful companies are likely the ones that pick a side early. Trying to be everything to everyone is a recipe for burning through your Seed round without finding product-market fit in either sector.

The Funding Gap Beyond the Seed Stage

We are seeing a lot of activity at the early stages. Governments are setting up innovation hubs, and smaller funds are writing checks. But there is a massive 'valley of death' waiting for these companies once they need Series B or C funding. Large institutional investors in Europe still have internal mandates—often driven by ESG (Environmental, Social, and Governance) criteria—that prevent them from touching anything that looks like a weapon.

This creates a strange paradox. We have political leaders screaming about the need for technological autonomy, while the pension funds and large banks in those same countries are barred from investing in the tech that would provide it. For a founder, this means your exit strategy is either a miracle IPO or getting swallowed by a legacy prime contractor like BAE Systems or Rheinmetall for a fraction of what you’re worth.

What Builders Should Actually Do

If you are a founder entering the defense or resilience space, you need to stop thinking like a SaaS founder. The 'move fast and break things' mantra will get you laughed out of a procurement meeting. Here is the skeptical founder’s playbook for the current European landscape:

• Focus on the boring stuff. Drones are flashy, but the real bottlenecks are in secure communications, battery density, and edge computing. The companies that solve the plumbing of modern warfare will be more resilient than those building the faucets.
• Understand the procurement cycle before you write code. If you don't know what a 'Program of Record' is, you aren't ready to sell to the military. You need to map out the 24-to-36-month timeline and ensure you have the runway to survive it.
• Don't rely on political rhetoric. Just because a politician says Europe needs more AI in the trenches doesn't mean there is a budget line item for it. Follow the money, not the speeches.

The AI Trap

Every defense startup now claims to be an AI startup. This is the biggest red flag in the industry. Real military AI isn't about generative chat; it’s about sensor fusion and autonomous navigation in GPS-denied environments. The hype cycle in AI is currently masking the technical debt that many of these new defense firms are carrying. Founders who can prove their tech works without a cloud connection will be the ones standing when the AI hype bubble eventually deflates.

The biggest risk to European defense tech isn't a lack of innovation; it's the assumption that the market will behave rationally. It won't.

We are entering a period of consolidation. The initial excitement of 2022 and 2023 is giving way to the hard work of testing and evaluation. For the builders who are serious, this is actually good news. The tourists will leave as the capital gets tighter and the requirements get harder. What’s left will be a smaller group of companies that actually understand how to bridge the gap between a silicon chip and a sovereign border.

Europe has the talent to build world-class defense tech. Whether it has the political will to actually buy it from startups—and the financial ecosystem to support it—remains a very open question. Don't build based on hope. Build based on the reality of the bureaucracy.

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