Climate & Energy Funding May–June 2026: Fusion, Grids, and the Physical Economy
Helion's $465M fusion round and Gigascale Capital's $250M fund show climate capital in 2026 favoring hard energy infrastructure with a path to cheaper, cleaner output.
Climate tech venture capital spans renewable energy, grid modernization, carbon capture, sustainable materials, and software for emissions tracking. Our climate-tech coverage tracks the funds and rounds addressing the energy transition and decarbonization economy.
Browse climate tech venture capital articles below.
Helion's $465M fusion round and Gigascale Capital's $250M fund show climate capital in 2026 favoring hard energy infrastructure with a path to cheaper, cleaner output.
Helion Energy raised $465M at a $15.5B valuation in June 2026, pushing total funding near $1.5B as fusion moves from physics to power-plant construction.
Ex-Meta CTO Mike Schroepfer's Gigascale Capital closed its first institutional fund at $250M in June 2026 to back energy, materials, and grid infrastructure.
Boston Metal raised $75M to deploy its MOE platform for critical metals production — industrial climate deals still close in May 2026.
Equal Ventures co-led Texture’s $12.5M Series A operating system for energy companies and led Chord Commerce’s $7M AI commerce financing.
Collaborative Fund announced Collab SOS, a $200M fund for Series A/B sustainable companies in materials, energy, and supply chains, after leading Cambiotics’ seed.