# Heartwood Biomass funding: rounds and investors

> Heartwood Biomass has raised $2.2M across 1 round since 2025. Every round with its source.

Source: https://millionrounds.com/company/heartwood-biomass (Millionrounds; every figure on the page links to its filing or article)

United States · [Funded startup](https://millionrounds.com/companies)

# 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

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Funding summary Updated 15 Nov 2026

**$2.2M** raised across 1 round since 2025, from 1 source

- **Latest round:** Round, $2.2M Oct 2025
- **Investors:** 0

See who backed them

## The rounds

- **Oct 2025** Round **$2.2M** No investor was named in the report. Filed with the SEC (Form D); no report of this raise yet SEC 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.

- Oct 2025 **$2.2M** 10 investors of $3.0M offered SEC Form D
- Jun 2023 **$2.3M** 12 investors equity of $2.5M offered SEC Form D
- Mar 2021 **$1.9M** 25 investors equity of $2.0M offered SEC 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.

## Companies like Heartwood Biomass

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

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