UK-based AI security platform Geordie AI has secured $30 million in a Series A funding round, achieving a post-money valuation of $155 million. The round was led by Balderton Capital, with participation from Crosspoint Capital, General Catalyst, and Ten Eleven Ventures. This marks the largest Series A round for a European cybersecurity startup. Geordie AI, co-founded by former executives from Darktrace and Snyk, specializes in real-time monitoring and risk detection of AI agents within enterprises. The platform is already operational in about 30 customer environments, including AlphaSense and Owkin.