Circle Rock is a London-based venture capital syndicate investing globally from the UK and Ireland in seed, Series A and Series B technology companies. It typically invests alongside venture firms, does not lead deals or take board seats, and targets defensible technology businesses in internationally scalable markets. Relevant sectors include AI, developer tools, enterprise software, climate, construction, materials, cybersecurity, FinTech and SaaS. Typical ticket size is €500k to €5 million+.