# Caribou Biofuels funding: rounds and investors

> Caribou Biofuels has raised $256K across 1 round since 2021. Investors include National Science Foundation. Every round with its source.

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

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

# Who invested in *Caribou Biofuels*

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.

Cleantech

Funding summary Updated 26 Oct 2026

**$256K** raised across 1 round since 2021, from 1 source

- **Latest round:** Grant, $256K Apr 2021
- **Investors:** 1

See who backed them

## The rounds

- **Apr 2021** Grant **$256K** [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Source recorded

## Founders and team

From Caribou Biofuels's own website: 2 founders, 1 on the team.

**Blake Simmons** Founder

**Kieran Mitchell** Founder

- **David Roland-Holst** Chief Economist

## Everyone who backed them

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

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

## Quick answers about Caribou Biofuels

### Who invested in Caribou Biofuels?

Caribou Biofuels's investors include National Science Foundation.

### How much has Caribou Biofuels raised?

Caribou Biofuels has raised $256K across 1 round since 2021.

### When did Caribou Biofuels last raise?

Caribou Biofuels's most recent round was a Grant of $256K in Apr 2021.

### What was Caribou Biofuels's biggest round?

Its most recent round, $256K in Apr 2021, is also its largest on record.

### Who backed Caribou Biofuels first?

Caribou Biofuels's first round on record, in Apr 2021, was backed by National Science Foundation.

### What stage is Caribou Biofuels at?

Caribou Biofuels's latest named round is a Grant, in Apr 2021.

## Companies like Caribou Biofuels

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

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