Marunouchi Innovation Partners is a Tokyo-based venture capital firm managing the Marunouchi Climate Tech Growth Fund L.P. and investing globally in startups advancing carbon neutrality. It focuses on later-stage venture rounds across climate tech, energy, industrial decarbonization, deep tech, materials, manufacturing and infrastructure, with activity in Japan, the United States and the United Kingdom. The firm has acted as a lead investor and backs companies including Boston Metal, Amogy and Fervo Energy.