Mike Kruzeniski

Mike Kruzeniski is an Investment Partner at Climate Capital based in the United States. In this role, he deploys capital into pre-seed through Series B climate technology companies, typically writing initial checks between $25,000 and $50,000 per deal. His firm has backed over 400 startups since 2015, including investments in recognizable entities such as BeeHero, Medium, and Turing.com. Kruzeniski recently participated in a $6 million seed round for Transition Metal Solutions in January 2026 and a $21 million Series A for Sphere in November 2025. Prior to his current institutional role, he operated personal investment vehicles like the Un Fund I and built a track record as an active angel investor within the broader technology sector. His current focus centers on financing early-stage ventures across energy generation, climate adaptation, and advanced AI-enabled computing.