Balderton Capital, the London venture firm, led a $30m Series A into Geordie announced on 28 May, taking the company's total funding to $36.5m since a September 2025 seed1. The founders come from two British cybersecurity successes: chief executive Henry Comfort ran Americas operations at Darktrace, the Cambridge-founded AI security company, and chief technology officer Benji Weber was a senior engineering director at Snyk, the London developer-security firm. Crosspoint Capital joined as a new backer, with General Catalyst and Ten Eleven Ventures following on.
Geordie builds runtime security for AI agents, a category barely two years old. As enterprises let autonomous software agents act inside their systems, Geordie watches what each agent does and constrains risky actions without blocking the deployment, the same monitor-not-gate logic the Financial Conduct Authority (FCA), the UK markets regulator, is testing in its AI Live Testing cohort. The traction is steep: Geordie says revenue grew 1,300% in the first five months of 20262, across roughly 30 customer environments including market-intelligence platform AlphaSense and the biomedical firm Owkin, whose agents run across more than 50 petabytes of data. The company won the RSAC 2026 Innovation Sandbox award, the Headline prize at the RSA Conference, the industry's largest cybersecurity gathering.
For founders, the round matters beyond the cash. A UK fund led a genuinely new category at Series A, which means the next agent-security team can pitch a British lead rather than assume the cheque must come from California. The same week Orbital Industries' Series B closed with no UK lead at all, a contrast that frames Geordie precisely: domestic capital can still anchor a frontier round at Series A, yet thins out at the larger growth-stage cheques where the chequebook runs short.
