Martlet Capital provides early-stage patient capital to IP-rich, deep technology and life science B2B startups with high growth potential, primarily focusing on the Cambridge technology cluster.
About Martlet Capital
Martlet Capital is a Cambridge, UK-based early-stage investor specializing in deep tech, life sciences, and engineering-led startups with a strong tilt toward Cambridge University spinouts. Stage focus is pre-seed through Series A, with checks typically in the GBP 250k to 2M range and the capacity to lead seed rounds. Healthcare exposure runs through life sciences, medical devices, diagnostics, and selectively digital health where the foundation is novel science or engineering rather than commercial-only software. Physician founders with academic ties to Cambridge or other UK research institutions, particularly those commercializing IP-heavy diagnostics, devices, or therapeutics platforms, are the natural fit. Founders building pure-play consumer brands, US-only digital health products, or scaled growth-stage rounds should pitch elsewhere. Geographic posture is UK-anchored with a strong Cambridge ecosystem tilt. The realistic entry path is a warm introduction from a Cambridge University commercialization office, an existing portfolio founder, or a co-investing UK deep-tech fund; the firm is well known to the Cambridge ecosystem and prefers referred deals. Founders should arrive with defended IP, a credible scientific narrative, and an articulated commercial development plan. Treat Martlet as one of the most relevant early-stage partners for UK deep-tech and life-sciences founders with academic roots, and an engaged investor that will participate actively in early company building.
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