# Fracsun funding: rounds and investors

> Fracsun has raised $1.0M across 1 round since 2021. Investors include US Department of Energy. Every round with its source.

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

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

# Who invested in *Fracsun*

One round we have observed, with the one investor 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.

Hardware & Electronics

Funding summary Updated 26 Oct 2026

**$1.0M** raised across 1 round since 2021, from 1 source

- **Latest round:** Series A, $1.0M Sept 2021
- **Investors:** 1

See who backed them

## The rounds

- **Sept 2021** Series A **$1.0M** [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) Source recorded

## Everyone who backed them

[US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) Government **1** round

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

## Quick answers about Fracsun

### Who invested in Fracsun?

Fracsun's investors include US Department of Energy.

### How much has Fracsun raised?

Fracsun has raised $1.0M across 1 round since 2021.

### When did Fracsun last raise?

Fracsun's most recent round was a Series A of $1.0M in Sept 2021.

### What was Fracsun's biggest round?

Its most recent round, $1.0M in Sept 2021, is also its largest on record.

### Who backed Fracsun first?

Fracsun's first round on record, in Sept 2021, was backed by US Department of Energy.

### What stage is Fracsun at?

Fracsun's latest named round is a Series A, in Sept 2021.

### Where is Fracsun based?

Fracsun is based in the United States.

## Companies like Fracsun

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

[**Optivolt** $37M · Oct 2026](https://millionrounds.com/company/optivolt)[**Tenstorrent** $3.0B · Oct 2026](https://millionrounds.com/company/tenstorrent)[**Sabi** $50M · Oct 2026](https://millionrounds.com/company/sabi)[**Ringon** $70K · Oct 2026](https://millionrounds.com/company/ringon)[**Relay** $207M · Oct 2026](https://millionrounds.com/company/relay)[**SiMa.ai** $235M · Sept 2026](https://millionrounds.com/company/sima-ai)

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