United States · Funded startup

Who invested in Heartwood Biomass

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.

Chemicals & Materials

Funding summaryUpdated 15 Nov 2026

$2.2Mraised across 1 round since 2025, from 1 source

Latest round
Round, $2.2MOct 2025
Investors
0
See who backed them

The rounds

  1. Oct 2025
    Round$2.2M

    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

Funding filed with regulators

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.

  1. Oct 2025$2.2M10 investorsof $3.0M offeredSEC Form D
  2. Jun 2023$2.3M12 investorsequityof $2.5M offeredSEC Form D
  3. Mar 2021$1.9M25 investorsequityof $2.0M offeredSEC Form D

Quick answers about Heartwood Biomass

How much has Heartwood Biomass raised?

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

When did Heartwood Biomass last raise?

Heartwood Biomass's most recent round, $2.2M, was in Oct 2025.

What was Heartwood Biomass's biggest round?

Its most recent round, $2.2M in Oct 2025, is also its largest on record.

Where is Heartwood Biomass based?

Heartwood Biomass is based in the United States.

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In the same sector, and raised in the last eighteen months.

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