SIIF Impact Capital

SIIF Impact Capital

SIIF Impact Capital was founded in September 2022 by Kazuhiro Umeda and Reiri Miura under the thesis that wellness literacy and social capital are the missing infrastructure for equity in Japan. The firm registered in Shibuya, Tokyo, and structured itself as a venture capital company that practices what it calls purpose capital — a deliberate overlay of system thinking and global-standard impact management on conventional venture investing. The firm's investment strategy centers on early-stage startups across digital health, healthcare services, wellness, and agri-food. Its portfolio, held under the SIIFIC Wellness Fund, includes five disclosed positions: J-Pharma, a biotech pursuing novel SLC-transporter drugs; Orthorebirth, a medical-device company commercializing absorbable cotton-like artificial bone; Proximar, which operates a closed-containment recirculating aquaculture facility for Atlantic salmon near Mount Fuji; C-HAS Plus, a Kumamoto University spinout using nematodes for health-span analysis; and Personal Health Tech, a corporate health and preventive-medicine platform. Geographically, the firm focuses on Japan, though Proximar draws on Norwegian aquaculture IP, introducing a single cross-border technology link. SIIF Impact Capital operates with a small, senior team: its two representative directors, a single director, and an advisory group spanning AI, data science, and legal counsel. The firm has not publicly disclosed assets under management, total deployment, or its professionals count. In the absence of published numbers, the visible footprint — five portfolio companies and a deliberately lean leadership — suggests capital depth over breadth, with the Wellness Fund as the sole publicly listed vehicle. No philanthropic foundation or adjacent membership club is disclosed. What structurally distinguishes SIIF Impact Capital among Japanese VCs is its mandate: it writes equity checks but wraps them in a theory-of-change measurement system that mirrors the cadence of an impact foundation. The firm defines its success by a shift in wellness-capital formation — individual empowerment, community resilience, planetary health — rather than by internal rate of return alone. That posture, paired with a concentrated Japanese wellness thesis, provides a distinct sourcing lane in a market where impact is often bolted onto generalist strategies.