# Natural Fiber Welding funding: rounds and investors

> Natural Fiber Welding has raised $7.0M across 1 round since 2026. Investors include National Science Foundation, Gaingels and Collaborative Fund.

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

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

# Who invested in *Natural Fiber Welding*

One round we have observed, with the 4 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.

Cleantech

Raised 10 months ago

Funding summary Updated 26 Oct 2026

**$7.0M** raised across 1 round since 2026, from 1 source

- **Latest round:** Growth, $7.0M Jan 2026
- **Investors:** 4

See who backed them

## The rounds

- **Jan 2026** Growth **$7.0M** [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Gaingels](https://millionrounds.com/fund/gaingels) [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) [Scrum Ventures](https://millionrounds.com/fund/scrum-ventures) Source recorded SEC filing: $7.0M sold, first sale Dec 2025

## Everyone who backed them

[National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round

[Gaingels](https://millionrounds.com/fund/gaingels) Private equity **1** round

[Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) VC firm **1** round

[Scrum Ventures](https://millionrounds.com/fund/scrum-ventures) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=natural-fiber-welding).

## Also claim to have backed them

These 2 firms list Natural Fiber Welding as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[BMW i Ventures](https://millionrounds.com/fund/bmw-i-ventures) Corporate VC Per its own site

[For Good Ventures](https://millionrounds.com/fund/for-good-ventures) VC firm Per its own site

## Quick answers about Natural Fiber Welding

### Who invested in Natural Fiber Welding?

Natural Fiber Welding's investors include National Science Foundation, Gaingels, Collaborative Fund and Scrum Ventures.

### How much has Natural Fiber Welding raised?

Natural Fiber Welding has raised $7.0M across 1 round since 2026.

### When did Natural Fiber Welding last raise?

Natural Fiber Welding's most recent round was a Growth of $7.0M in Jan 2026.

### What was Natural Fiber Welding's biggest round?

Its most recent round, $7.0M in Jan 2026, is also its largest on record.

### Who backed Natural Fiber Welding first?

Natural Fiber Welding's first round on record, in Jan 2026, was backed by National Science Foundation, Gaingels and Collaborative Fund and 1 others.

### What stage is Natural Fiber Welding at?

Natural Fiber Welding's latest named round is a Growth, in Jan 2026.

### Where is Natural Fiber Welding based?

Natural Fiber Welding is based in the United States.

## Companies like Natural Fiber Welding

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

[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Renew** $207M · Oct 2026](https://millionrounds.com/company/renew)[**Optivolt** $37M · Oct 2026](https://millionrounds.com/company/optivolt)

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