Symbrosia key facts
as of Oct 2026- Producer of feed additives intended to reduce livestock methane emissions.
- Symbrosia is valued at approximately $37.0M as of Oct 2026 (last reported valuation).
- It has raised $14.2M; the latest was Later Stage VC ($5.8M) in Dec 2025.
- Notable investors include US National Science Foundation, E8 (Seattle), United States Department of Agriculture, Hatch Blue, Massachusetts Institute of Technology Endowment — 18 tracked in total.
- Status: Privately Held (backing).
Symbrosia's last reported valuation, Jun 2022. Nothing priced has surfaced since.
- ·The complete investor list: 18 names
- ·Watch Symbrosia: the Monday email on marks, rounds and moves
Symbrosia funding rounds
No funding rounds for Symbrosia are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
Who backs Symbrosia
18+Symbrosia valuation
Symbrosia's last reported valuation was $37 million in Jun 2022. No priced round, secondary trade or fund mark has surfaced since.
Symbrosia investors
18 investors are on record for Symbrosia, including US National Science Foundation, E8 (Seattle), United States Department of Agriculture and Hatch Blue.
About Symbrosia
Producer of feed additives intended to reduce livestock methane emissions. The company offers a proprietary seaweed-based product developed from fast-growing asparagopsis strains, enabling ranchers and livestock producers to significantly cut greenhouse gas emissions.
- Sector
- Consumer Products and Services (B2C)
- HQ
- Kailua-Kona, HI, United States
- Founded
- 2018
- Employees
- 27
- Website
- symbrosia.co/
- Ownership
- Privately Held (backing)
Is this your company? Sign in with your work email to keep it current, or tell us what's wrong.