Key facts
- It has raised $37.0M; the latest was Early Stage VC in Nov 2025.
- Notable investors include SOSV, Global Brain, Bessemer Venture Partners, HAX, Breakthrough Energy — 17 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 17 names
- ·Watchlist + deal alerts for Windfall Bio
- ·The full record, as it builds
Funding rounds
No funding rounds for Windfall Bio are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Windfall Bio
Developer of a nature-based agricultural technology designed to transform harmful methane into organic soil nutrients on-site. The company's technology provides microbes, digestors and associated services to capture and transform methane from a variety of sources, including direct capture of methane carbon from the atmosphere, enabling farmers of all sizes to be a part of the methane transformation and reduce their reliance on synthetic fertilizers.
- Sector
- Materials and Resources
- HQ
- San Mateo, CA, United States
- Founded
- 2022
- Employees
- 47
- Website
- windfall.bio/
- Ownership
- Privately Held (backing)
Windfall Bio doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Windfall Bio shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Windfall Bio in its N-PORT filings yet. We sweep new filings monthly.