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Windfall Bio is actively raising a Series B round to further develop its waste methane to organic fertilizer technology after raising $37 million from Prelude Ventures and Amazon.
PRIVATEMay 26, 2026•2 months ago
Amount Raised
$37 Million
Round Type
Series B
Menlo ParkBiotechnologyAgriculture and Farming
Investors
Amazon’s Climate Pledge FundPrelude Ventures
Description
Windfall Bio, a California-based startup, is currently raising a Series B round after successfully raising $37 million in previous funding rounds. The company focuses on converting waste methane from farms and landfills into organic fertilizer. Founded in 2022, Windfall began the construction of its demo plant last fall. Investors include Prelude Ventures and Amazon’s Climate Pledge Fund.
Company Information
Company
Windfall Bio
Location
Menlo Park, California, United States
About
Windfall Bio is a nature-based agricultural technology company that harnesses methane-eating microbes to transform harmful methane into organic soil nutrients on site. Windfall Bio will drastically reduce the carbon footprint of the Earth’s food system, increasing profits for the farmers that feed our communities without increasing costs to consumers. Windfall Bio provides microbes, digestors, and associated services that allow for the capture and transformation of methane from a variety of sources, including direct capture of methane carbon from the atmosphere.
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Menlo ParkBiotechnologyAgriculture and Farming