# Ambient Fuels funding: rounds and investors

> Ambient Fuels has raised $250M across 1 round since 2023. Investors include Contour Venture Partners and SJF Ventures. Every round with its source.

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

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

# Who invested in *Ambient Fuels*

One round we have observed, with the 2 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.

Energy

Funding summary Updated 26 Oct 2026

**$250M** raised across 1 round since 2023, from 1 source

- **Latest round:** Growth, $250M May 2023
- **Investors:** 2

See who backed them

## The rounds

- **May 2023** Growth **$250M** [Contour Venture Partners](https://millionrounds.com/fund/contour-venture-partners) [SJF Ventures](https://millionrounds.com/fund/sjf-ventures) Source recorded

## Founders and team

From Ambient Fuels's own website: 3 founders, 6 on the team.

**Raffi Garabedian** CEO and Co-founder

**David Eaglesham** CTO and Founder

**Derek Warnick** CFO and Co-founder

- **Beth Deane** Chief Legal Officer
- **Renata Naoumov** Chief People Officer
- **Chris Shugart** VP Development
- **Yang Liu** VP Power and Infrastructure
- **Michael Leskinen** Team
- **United Airlines** Team

## Everyone who backed them

[Contour Venture Partners](https://millionrounds.com/fund/contour-venture-partners) VC firm **1** round

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

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

## Quick answers about Ambient Fuels

### Who invested in Ambient Fuels?

Ambient Fuels's investors include Contour Venture Partners and SJF Ventures.

### How much has Ambient Fuels raised?

Ambient Fuels has raised $250M across 1 round since 2023.

### When did Ambient Fuels last raise?

Ambient Fuels's most recent round was a Growth of $250M in May 2023.

### What was Ambient Fuels's biggest round?

Its most recent round, $250M in May 2023, is also its largest on record.

### Who backed Ambient Fuels first?

Ambient Fuels's first round on record, in May 2023, was backed by Contour Venture Partners and SJF Ventures.

### What stage is Ambient Fuels at?

Ambient Fuels's latest named round is a Growth, in May 2023.

### Where is Ambient Fuels based?

Ambient Fuels is based in the United States.

## Companies like Ambient Fuels

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)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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