How much has Heartwood Biomass raised?
Heartwood Biomass has raised $2.2M across 1 round since 2025.

United States · Funded startup
One round we have observed, with the 0 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Funding summaryUpdated 15 Nov 2026
$2.2Mraised across 1 round since 2025, from 1 source
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $2.2M sold, first sale Oct 2025
Heartwood Biomass filed 3 raises, $6.5M in all. Filings say how much was sold and to how many investors; they never name the investors.
Heartwood Biomass has raised $2.2M across 1 round since 2025.
Heartwood Biomass's most recent round, $2.2M, was in Oct 2025.
Its most recent round, $2.2M in Oct 2025, is also its largest on record.
Heartwood Biomass is based in the United States.
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