Geordie AI raises $30M Series A led by Balderton for AI agent security
What's the deal? London-based Geordie AIDealroom has a profile for this one. Try Dealroom → has raised a $30 million Series A led by Balderton Capital, valuing the company at $155 million post-money. It is believed to be the largest Series A for a cybersecurity startup in Europe to date.
The round includes new investment from Crosspoint Capital and follow-on funding from General Catalyst and Ten Eleven Ventures, bringing total funding to $36.5 million. The company emerged from stealth less than a year ago with a $6.5 million seed round.
Geordie builds security and governance tools for AI agents — the autonomous software programmes that companies increasingly deploy to handle tasks. Its platform discovers agents across an enterprise, maps what data and tools each agent can access, and flags risks in real time. A separate module called Beam uses "context engineering" to constrain agent behaviour on the fly.
The company was cofounded by Henry Comfort, former COO for the Americas at Darktrace; Hanah Darley, Darktrace's former director of security and AI strategy; and Benji Weber, former senior director of engineering at Snyk. It now has 37 employees across London and New York, with plans to reach 50 within three months.
Why now? Enterprises are adopting AI agents at speed — and security teams need visibility. Geordie is already deployed across roughly 30 customer environments, including AlphaSense, where it covers "tens of thousands of agents," and biotech firm Owkin, which runs hundreds of agents across more than 50 petabytes of data.
The startup won the 2026 RSAC Innovation Sandbox contest in March, a closely watched cybersecurity competition whose past finalists include Wiz and SentinelOne. That visibility helped fuel investor interest.
What could go wrong? Geordie faces a crowded field. Microsoft offers Agent 365, ServiceNow has its AI Control Tower, and OpenAI has built governance features into its Frontier enterprise platform. All bundle agent oversight into broader software packages.
Comfort argues those offerings fall short for enterprises running agents across multiple model providers. "We're playing a different game to those guys," he said, noting that vendors selling AI models also have incentives to lock customers into their own ecosystems.
The signal: Balderton Capital leading what is reportedly Europe's largest cybersecurity Series A underscores how quickly "agent security" is crystallising as a standalone investment category, much as cloud adoption a decade ago spawned dedicated security players. The involvement of Crosspoint Capital — a specialist cybersecurity and infrastructure fund — alongside generalist General Catalyst suggests both domain experts and broad-mandate investors view autonomous-agent governance as a durable, not cyclical, market opportunity.
Read more: Fortune
