Startups building military technology are pulling in money at a record pace. According to data from PitchBook, reported by the Financial Times, defense tech companies have raised $12.3 billion across 175 deals so far in 2026.

That figure has already passed the total for all of 2025, when the same kind of companies raised $9.95 billion across 158 deals. In other words, investors have put more money into the sector in part of one year than they did in the entirety of the previous one.

The companies drawing this funding are working on technologies like drones and battlefield artificial intelligence — tools aimed at modern warfare rather than traditional heavy hardware.

But the rapid run-up comes with a warning. The Financial Times reports that soaring valuations are fueling fears of a hype cycle, the pattern in which excitement and investment race ahead of what a technology can actually deliver. When that happens, valuations can become detached from real-world results, setting the stage for a painful correction.

The surge reflects a broader moment: heightened global security concerns and a wave of investor interest have made defense one of the hottest corners of the startup world, after years in which many venture firms avoided weapons-related businesses entirely.

Why it matters: A flood of private capital is reshaping who builds the tools of modern war — and whether this is a durable shift or an inflating bubble will affect both investors' returns and the technologies that end up on real battlefields.