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Top Oil & Gas Companies

113 Oil & Gas companies, sorted by total funding raised.

113

Companies

$3.2B

Combined Funding

1

Funded (Last 60d)

Seed

Top Stage

Indexed tracks 113 Oil & Gas companies that have collectively raised $3.2B in documented funding. The most-funded oil & gas companies tracked include Venture Global and Elk Range Royalties. 1 company closed a new round in the last 60 days, with Seed being the most common funding stage.

Venture GlobalIPO

Liquefied natural gas company building large-scale LNG export facilities in Louisiana

Arlington, United States501–1000Energy, Infrastructure
Private Equity·$2.1B·Aug 2019
Elk Range Royalties

Active buyer of producing mineral and royalty interests

Dallas, United StatesAsset Management, Oil & Gas
Venture Round·$550.0M·Jun 2026
Axia Energy

Focused on acquisition and development of oil and gas assets

Highlands Ranch, United States11–50Oil & Gas
Series D·$200.0M
Aspen Energy Partners

Invests in small- to mid-cap oilfield services and technology companies

Arvada, United StatesEnergy, Oil & Gas
Seed·$100.0M·Jan 2016
Clean Energy Fuels Corp.IPO

North America's largest provider of natural gas fueling infrastructure and renewable natural gas ...

Newport Beach, United States501–1000Clean Energy, Energy
Corporate Round·$83.4M·Jun 2016
CarbonextClosed

At Carbonext Inc., we are developing a circularity strategy that retrofits existing architectures...

Houston, United States1–10Clean Tech, Climate Tech
Grant·$50.9M·Jun 2023
Urban Sky

Developing stratospheric Microballoons to capture the freshest, high-res earth observation data.

Denver, United States11–50Artificial Intelligence, Climate Tech
Series B·$39.8M·Feb 2025
Battalion Oil CorporationIPO

Independent energy company focused on acquisition, production, and development of liquids-rich as...

Houston, United States51–200Energy, Oil & Gas
Venture Round·$15.0M·Jan 2026
Pretred

Pretred recycles waste tires and repurposes them into barriers/blocks that are green, competitive...

Aurora, United States11–50Clean Tech, Infrastructure
Grant·$14.2M·Feb 2024
Ecolectro Inc.

R&D company with 5 SBIR/STTR awards from Department of Energy, National Science Foundation.

Ithaca, United States11–50Climate Tech, Clean Tech
Series A·$12.2M·Nov 2024
Graphite Innovation and Technologies

Canada's leading protective marine coatings company specialized in high-performance coatings for ...

Dartmouth, CanadaClean Tech, Climate Tech
Series A·$10.2M·Apr 2023
Interface Fluidics

Extreme Condition Fluid analysis for Carbon Sequestration, Hydrogen, and Oil and Gas. We make fl...

Calgary, Canada11–50Clean Tech, Nanotechnology
Series B·$9.9M·Nov 2021
Pedevco Corp.IPO

Publicly traded energy company engaged in acquisition and development of strategic oil and gas pr...

Houston, United States1–10Energy, Oil & Gas
Corporate Round·$7.7M·Jun 2018
aliciabots

Robotics start-up building the cheapest and most effective autonomous, robotic hull cleaning solu...

Boston, United StatesArtificial Intelligence, Oil & Gas
Seed·$5.0M·Nov 2024
Noteworthy AI

Noteworthy provides vehicle mounted cameras and AI to help electric utilities collect and analyze...

Stamford, United States11–50Artificial Intelligence, Clean Tech
Seed·$4.7M·Apr 2025
Gopher App

Gophr is an innovative logistics and delivery service platform powered by advanced AI technology.

Lake Charles, United StatesArtificial Intelligence, Industrials
Series A·$4.5M·Feb 2021
Petra Power

Petra Power is a manufacturing company that focuses on Solid Oxide Fuel Cells (SOFC) for APU syst...

Solon, United States11–50Clean Tech, Climate Tech
Venture Round·$4.0M
SATIM

Providing satellite radar-based intelligence for decision makers.

Kraków, Poland11–50Infrastructure, Insurtech
Series A·$4.0M·Sep 2024
Deepflow AI

Deepflow is a visual inspection platform that empowers industrial manufacturers to automate quali...

Bordeaux, France1–10Artificial Intelligence, Infrastructure
Seed·$3.5M·May 2025
EnviCore

EnviCore aspires to revolutionize current tailings mitigation practices and promote a circular ec...

Calgary, CanadaClean Tech, Climate Tech
Seed·$3.0M·Oct 2024
Ellipsis Drive

Ellipsis Drive is a cloud native plug and play solution for collaborating, sharing, and selling s...

Ede, Netherlands11–50Artificial Intelligence, Data & Analytics
Seed·$2.7M·Feb 2021
OffGridBox

The world's most powerful modular and compact unit that provides renewable energy and clean water...

Somerville, United States11–50Clean Tech, Fintech
Seed·$2.2M·Dec 2018
Cnergreen

Enhanced oil recovery and CO2 storage efficiency via resilient nanoparticle-based foam technology

Calgary, Canada1–10Climate Tech, Oil & Gas
Seed·$2.0M·Jan 2024
Partsimony

Partsimony is your manufacturing supply chain superpower in a world of uncertainty.

New York, United States11–50AR/VR, Artificial Intelligence
Seed·$2.0M·Oct 2021
Eskuad

A mobile-first data platform that empowers field workers, by providing a user-friendly interface ...

Portland, United States11–50Artificial Intelligence, Clean Tech
Seed·$1.8M·May 2023

Frequently Asked Questions

How many Oil & Gas companies are tracked on Indexed?

Indexed tracks 113 Oil & Gas companies, sorted by total funding raised.

How much funding have Oil & Gas companies raised in total?

The Oil & Gas companies tracked by Indexed have collectively raised $3.2B in documented funding.

What are the top-funded Oil & Gas companies?

The most-funded Oil & Gas companies tracked include Venture Global, Elk Range Royalties, Axia Energy.

Who are the top investors in Oil & Gas?

Leading investors active in Oil & Gas include Chevron Technology Ventures, NGP Energy Capital, Old Ironsides Energy.

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