WattCarbon operates a marketplace for renewable energy, electrification, and demand response projects.
Founded in 2021, WattCarbon is based in San Francisco, US. Its marketplace connects buyers with projects that reduce energy emissions through renewable power, electrification, and demand response. Its customers include aggregators, energy developers, electrification companies, and energy retailers. In July 2025, it raised an undisclosed amount in Seed-1 funding from City Light Capital, Cerulean Ventures, True Ventures, an individual, and other unspecified investors.
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