23 Best Fuel Startups to Watch in 2025

The Definitive Seedtable Ranking of Fuel Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 23 start-ups with an aggregate funding of $915.1m. The average funding per company in this subset is $39.8m.

Last update to the database: Feb 18, 2025. See changelog.

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Orbit Fab logo

Orbit Fab

Orbit Fab is a space industry startup developing in-space refueling services founded in 2018 by Daniel Faber.

1

Funding Rounds

$6.0m

Money raised

SkyNRG logo

SkyNRG

A company making Sustainable Aviation Fuel (SAF) as an alternative to using fossil fuels for air crafts. It was founded in 2008 and is located in Amsterdam, the Netherlands.

1

Funding Rounds

$190.0m

Money raised

Firehawk Aerospace logo

Firehawk Aerospace

Firehawk Aerospace is a company that develops 3D printers of rocket fuel.

1

Funding Rounds

$2.0m

Money raised

Booster logo

Booster

Booster is an on demand gas delivery company founded in 2014 by Diego Netto.

3

Funding Rounds

$149.0m

Money raised

LS9 Inc logo

LS9 Inc

Uses synthetic biology to develop biofuels from traditional feedstocks

5

Funding Rounds

$105.0m

Money raised

Bio Architecture Lab logo

Bio Architecture Lab

Bio Architecture Lab is a company and pioneer in the application of synthetic biology.

8

Funding Rounds

$39.7m

Money raised

Gas Pos logo

Gas Pos

Gas Pos is a company founded in 2015 by Joshua Smith, Nannette Smith and Cameron Hogan.

1

Funding Rounds

$1.0m

Money raised

OKTA logo

OKTA

Oil company of the republic of macedonia

1

Funding Rounds

$25.0m

Money raised

FILLD logo

FILLD

FILLD is a Mountain View, California-based company founded in 2015 by Scott Hempy.

3

Funding Rounds

$39.7m

Money raised

Propel Biofuels logo

Propel Biofuels

Propel Biofuels is a sells biodiesel and E85 ethanol blends founded in 2004 by Rob Elam.

1

Funding Rounds

$11.0m

Money raised

Refueler logo

Refueler

Refueler is a company founded in 2017 by Luigi Antonuccio.

1

Funding Rounds

$35.6k

Money raised

Compañía Logística de Hidrocarburos logo

Compañía Logística de Hidrocarburos

Compañía Logística de Hidrocarburos is a Madrid-based company founded in 1927.

1

Funding Rounds

Slick Energy, Inc. logo

Slick Energy, Inc.

Slick Energy, Inc. is a Newburyport, Massachusetts-based company founded in 2016 by Matt Millar.

3

Funding Rounds

$380.0k

Money raised

Simple-Fill logo

Simple-Fill

Simple-Fill is changing the way vehicles are fueled with an innovative technology that compresses natural gas in a more affordable, reliable and efficient way.

1

Funding Rounds

$1.7m

Money raised

OXCCU logo

OXCCU

OXCCU is a converting CO2 into fuels founded in 2021.

1

Funding Rounds

$23.0m

Money raised

ShaMaran Petroleum logo

ShaMaran Petroleum

ShaMaran Petroleum is a Vancouver-based company.

1

Funding Rounds

$30.5m

Money raised

Nadel and Gussman logo

Nadel and Gussman

For five generations, Nadel and Gussman has invested in the oil and gas business. Nadel and Gussman, headquartered in Tulsa, OK.

1

Funding Rounds

$100.0m

Money raised

Silentsoft logo

Silentsoft

Silentsoft is a company developing a smart, eco-friendly tank and meter monitoring system.

2

Funding Rounds

$4.1m

Money raised

1

Funding Rounds

$5.0m

Money raised

Site Fuel Usa logo

Site Fuel Usa

Site Fuel Usa is a California-based fuel company founded in 2015.

1

Funding Rounds

$5.0m

Money raised

GridIron Systems logo

GridIron Systems

GridIron Systems is a fuel company.

1

Funding Rounds

$13.0m

Money raised

Native Exploration Holdings logo

Native Exploration Holdings

Native Exploration Holdings is an Oklahoma City-based company.

1

Funding Rounds

$140.0m

Money raised

FirstElement Fuel logo

FirstElement Fuel

FirstElement Fuel is an Irvine, California-based fuel company.

1

Funding Rounds

$24.0m

Money raised