Moonfire Ventures

Moonfire Ventures is a London-based early-stage venture firm founded by Mattias Ljungman of Atomico fame, with a thesis built around using data and machine learning to source, screen, and back European seed-stage companies. The firm’s positioning as a tech-enabled seed investor is genuine, and the partner team carries strong institutional pedigree. Healthcare exposure is selective rather than thematic; the mandate is generalist consumer and software with healthcare appearing where the company is fundamentally a software business with strong scaling potential, particularly in digital health, behavioral health, and AI-native consumer health. AI focus is real and central to both the firm’s investing thesis and its sourcing methodology, with strong interest in AI-native applications across categories. Stage is Seed, with check sizes plausibly in the USD 1M to USD 4M range as a lead or strong co-investor, with capacity for follow-on. This is the wrong door for therapeutics, devices, or hospital enterprise plays where deep clinical and regulatory expertise is the unlock. It is a strong fit for European seed-stage healthcare software founders who want a sophisticated, data-driven partner with broad consumer and AI experience. Entry path is the firm’s website application, which is unusually well-organized, supplemented by warm introductions through the European seed ecosystem. Founders should bring crisp metrics; Moonfire’s data-driven posture means the firm reads numbers carefully.