All Industries

Top Oil & Gas Companies

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

Ecolectro Inc.

Ecolectro develops stable, low-cost alkaline exchange materials that reduce electrolyzer stack co...

ITHACA, United States11–50Climate Tech, Clean Tech
Series ATotal funding$12.2MNov 2024
Tema India

Tema India designs and manufactures process equipment for industrial applications involving high ...

Energy, Manufacturing
Venture RoundTotal funding$12.0MApr 2005
PayGo EnergyAcquired

PayGo Energy was a Nairobi-based technology company that built hardware and software solutions to...

Nairobi, Kenya11–50Clean Energy, Oil & Gas
Venture RoundTotal funding$11.4MApr 2017
SOUTHWEST SCIENCES INC

R&D company with 35 SBIR/STTR awards from National Aeronautics and Space Administration, Departme...

SANTA FE, United States11–50Hardware, Oil & Gas
GrantTotal funding$10.7MApr 2024
Cold Pad

Non-intrusive adhesive bonding and fastening solution for construction and structural works.

Paris, FranceConstruction, Maritime
Venture RoundTotal funding$10.4MJan 2023
Graphite Innovation and Technologies

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

Dartmouth, CanadaClean Tech, Climate Tech
Series ATotal funding$10.2MApr 2023
ENDURALOCK LLC

R&D company with 12 SBIR/STTR awards from Department of Defense.

Lenexa, United States11–50Aerospace, Manufacturing
GrantTotal funding$10.0MMay 2025
PARAGON SPACE DEVELOPMENT CORPORATION

R&D company with 40 SBIR/STTR awards from Department of Defense, National Aeronautics and Space A...

TUCSON, United States51–200Aerospace, Manufacturing
GrantTotal funding$10.0MJul 2025
Interface Fluidics

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

Calgary, Canada11–50Clean Tech, Nanotechnology
Series BTotal funding$9.9MNov 2021
PAULSSON, INC.

R&D company with 18 SBIR/STTR awards from Department of Energy, Department of Transportation.

Van Nuys, United States11–50Industrials, Oil & Gas
GrantTotal funding$9.7MAug 2023
Teverra LLC

R&D company with 14 SBIR/STTR awards from Department of Energy, National Science Foundation.

Brookhaven, United States1–10Oil & Gas, Renewable Energy
GrantTotal funding$7.8MOct 2025
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 RoundTotal funding$7.7MJun 2018
MaverickX

Breakthrough chemical solutions for oil & gas, mining, metals, and water treatment.

11–50Advanced Materials, Oil & Gas
Venture RoundTotal funding$7.5MMay 2026
DISCOVERY MACHINE INC

R&D company with 9 SBIR/STTR awards from Department of Defense.

WILLIAMSPORT, United States11–50Artificial Intelligence, Oil & Gas
GrantTotal funding$7.4MJun 2024
TVP Solar
Manufacturing, Oil & Gas
Extension RoundTotal funding$7.1MAug 2013
SEMPLASTICS EHC LLC

R&D company with 9 SBIR/STTR awards from Department of Energy, National Aeronautics and Space Adm...

Oviedo, United States11–50Manufacturing, Oil & Gas
GrantTotal funding$6.9MJul 2024
NOBLE GAS SYSTEMS INC.

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

Novi, United States1–10Energy, Energy Storage
GrantTotal funding$6.8MSep 2025
Atmio

Operating system for oil and gas methane emissions

Europe11–50Climate Tech, Oil & Gas
SeedTotal funding$5.5MJun 2024
Crimson Renewable
Energy, Oil & Gas
GrantTotal funding$5.1MMay 2023
aliciabots

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

Boston, United StatesArtificial Intelligence, Oil & Gas
SeedTotal funding$5.0MNov 2024
Noteworthy AI

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

Stamford, United States11–50Artificial Intelligence, Clean Tech
SeedTotal funding$4.7MApr 2025
OSCILLA POWER INC

R&D company with 8 SBIR/STTR awards from Department of Energy.

Seattle, United States1–10Energy, Oil & Gas
GrantTotal funding$4.5MSep 2024
Gopher App

Gophr is a delivery platform that gives teams in the field instant quotes, live tracking, and vet...

Lake Charles, United StatesArtificial Intelligence, Industrials
Series ATotal funding$4.5MFeb 2021
Rotoliptic
Industrials, Oil & Gas
GrantTotal funding$4.4MApr 2019
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 RoundTotal funding$4.0M