European AI agent startups raised €6.2 billion across 429 deals in 2025, an increase from the prior year, according to data published by Sifted on Tuesday. The European tech publication also released a VC-curated list of 19 agent startups that investors expect to matter in 2026.
The figures put a number on what has been largely anecdotal: AI agent infrastructure is a serious VC thesis in Europe, not just in Silicon Valley. €6.2 billion across 429 deals means an average round size of roughly €14.5 million, suggesting institutional capital is flowing at scale rather than concentrating in a handful of mega-rounds.
The 19 companies were sourced directly from VCs, making the list a credible signal of where institutional money expects returns in the European agent ecosystem. Startup Networks noted the list spans multiple categories including enterprise automation, developer tooling, and vertical-specific agent platforms.
For builders watching the agent market through a US lens, the data suggests a parallel market of comparable scale. The question is whether these European startups stay regional or cross the Atlantic to compete directly with US-based agent platforms.