Energy & Climate

105 companies

Energy sets the ceiling on civilization. These companies build infrastructure for power generation, storage, and delivery, from fusion and fission to batteries and the grid. Every industrial revolution was sparked by an energy transition. The next one starts here.

105 companies
Aalo Atomics logo

Delivers compact nuclear power.

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Series B
Founders
Matt Loszak
HQ City
Austin, TX
Founded
2023
Total Raised
$133.3M
Employees
51-200
Last Round Date
Aug 2025
Aepnus Technology logo

Electrifies chemical production.

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Seed
Founders
Lukas Hackl, Bilen Akuzum
HQ City
Oakland, CA
Founded
2021
Socials
Total Raised
$10.6M
Employees
21-50
Last Round Date
Jul 2025
Amperon logo

Optimizes grid data and analytics.

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Series B
Founders
Sean Kelly, Abe Stanway
HQ City
Houston, TX
Founded
2017
Total Raised
$35.7M
Employees
51-200
Last Round Date
Jul 2025
Ample logo

Scales battery swapping systems.

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Series C
Founders
Khaled Hassounah, John De Souza
HQ City
San Francisco, CA
Founded
2014
Total Raised
$275.7M
Employees
51-200
Last Round Date
Dec 2025
Antares logo

Deploys kilowatt-scale fission reactors.

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Series B
Founders
Jordan Bramble, Julia DeWahl
HQ City
Redondo Beach, CA
Founded
2023
Total Raised
$134.1M
Employees
51-200
Last Round Date
Dec 2025
Anthro Energy logo

Improves lithium-ion battery electrolytes.

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Seed
Founders
Jonathan Hes, David Mackanic, Joe Papp
HQ City
Alameda, CA
Founded
2021
Total Raised
$27.7M
Employees
21-50
Antora Energy logo

Stores zero-carbon industrial heat.

--
Series B
Founders
David Bierman, Andrew Ponec, Justin Briggs
HQ City
Sunnyvale, CA
Founded
2018
Total Raised
$309.1M
Employees
201-1,000
Last Round Date
Oct 2025
Arbor Energy logo

Generates energy while storing carbon.

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Seed
Founders
Brad Hartwig
HQ City
Los Angeles, CA
Founded
2022
Socials
Total Raised
$5M
Employees
1-20
Last Round Date
Oct 2019
Atmo logo

Delivers AI-driven weather intelligence.

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Seed
Founders
Alex Levy, Johan Mathe
HQ City
San Francisco, CA
Founded
2020
Total Raised
$17.7M
Employees
21-50
Last Round Date
Dec 2024
AtmoCooling logo

Turns deserts into commercial hubs.

--
Seed
Founders
Paul Mahacek, Paul-Emmanuel Herve
HQ City
Seattle, WA
Founded
2024
Total Raised
$2M
Employees
1-20
Last Round Date
Dec 2024
Avalanche Energy logo

Builds compact fusion reactors.

--
Seed
Founders
Robin Langtry, Brian Riordan
HQ City
Tukwila, WA
Founded
2018
Total Raised
$145.1M
Employees
21-50
Last Round Date
Jul 2025
Base Power logo

Modernizes electric power utilities.

--
Series A
Founders
Zach Dell, Justin Lopas
HQ City
Austin, TX
Founded
2023
Total Raised
$1.2B
Employees
201-1,000
Last Round Date
Oct 2025
Bedrock Energy logo

Advances geothermal drilling technology.

--
Series A
Founders
Joselyn Lai, Silviu Livescu
HQ City
Austin, TX
Founded
2022
Socials
Total Raised
$20.5M
Employees
21-50
Last Round Date
Jan 2025
Bedrock Materials logo

Builds next-gen grid battery materials.

--
Seed
Founders
Rafael A. Vilรก
HQ City
Chicago, IL
Founded
2023
Socials
Total Raised
$15M
Employees
21-50
Last Round Date
Apr 2025
Bedrock Ocean logo

Maps the ocean floor.

--
Seed
Founders
Charles Chiau, Anthony DiMare
HQ City
New York, NY
Founded
2019
Total Raised
$58.5M
Employees
21-50
Last Round Date
Apr 2025
Blumen Systems logo

Digitizes infrastructure development.

--
Seed
Founders
Hannes Boehning
HQ City
San Francisco, CA
Founded
2023
Total Raised
$6.4M
Employees
1-20
Last Round Date
Jan 2025
Breen Energy logo

Supplies sustainable aviation fuels.

--
Seed
Founders
Chris Ochoa, Renat Yusufov, Susannah Vickers
HQ City
Pittsburgh PA
Founded
2023
Socials
Total Raised
$3M
Employees
1-20
Charm Industrial logo

Sequesters carbon underground via bio-oil.

--
Series B
Founders
Shaun Meehan, Peter Reinhardt, James Tamplin, Kevin Meissner, Kelly Hering
HQ City
San Francisco, CA
Founded
2018
Total Raised
$125.5M
Employees
51-200
Last Round Date
May 2025
Climeworks logo

Removes COโ‚‚ directly from air.

--
Series D+
Founders
Jan Wurzbacher, Christoph Gebald
HQ City
Opfikon, Switzerland
Founded
2009
Total Raised
$960.5M
Employees
201-1,000
Last Round Date
Jul 2025
Commonwealth Fusion logo

Builds fusion energy systems.

--
Series C
Founders
Martin Greenwald, Dan Brunner, Robert Mumgaard
HQ City
Devens, MA
Founded
2018
Total Raised
$2.8B
Employees
1,001-5,000
Last Round Date
Jun 2025
Critical Loop logo

Reduces peak power demand on-site.

--
Seed
Founders
Lydia Maher, Andrew Grinalds
HQ City
Los Angeles, CA
Founded
2023
Socials
Total Raised
$3.8M
Employees
1-20
Last Round Date
Jan 2025
Crusoe Energy logo

Builds AI-scale data centers.

--
Series C
Founders
Chase Lochmiller, Cully Cavness
HQ City
Denver, CO
Founded
2018
Total Raised
$4.1B
Employees
201-1,000
Last Round Date
Nov 2025
CruxOCM logo

Automates heavy equipment operations.

--
Seed
Founders
Roger Shirt, Vicki Knott
HQ City
Calgary, Canada
Founded
2017
Total Raised
$26M
Employees
21-50
Last Round Date
Jan 2025
Dandelion Energy logo

Installs residential geothermal systems.

--
Series C
Founders
James Quazi
HQ City
Mount Kisco, NY
Founded
2017
Total Raised
$175.7M
Employees
51-200
Last Round Date
Sep 2024
David Energy logo

Delivers home battery power.

--
Series A
Founders
James McGinniss, Brian Maxwell, Ahmed Salman
HQ City
New York, NY
Founded
2019
Total Raised
$68.9M
Employees
21-50
Last Round Date
Oct 2024
Deep Isolation logo

Buries nuclear waste.

--
Series B
Founders
Richard Muller, Elizabeth Muller
HQ City
Berkeley, CA
Founded
2016
Total Raised
$70.7M
Employees
1-20
Last Round Date
Jul 2025
Determinant Materials logo

Recovers critical metals from waste.

--
Seed
Founders
Nikhil R. Gupta
HQ City
Pensacola, FL
Founded
2019
Total Raised
$1.1M
Employees
1-20
Last Round Date
Jan 2024
Dimensional Energy logo

Produces synthetic petroleum fuels.

--
Series A
Founders
Tobias Hanrath, Jason Salfi, David Erickson, Clayton D. Poppe
HQ City
Ithaca, NY
Founded
2016
Total Raised
$31.3M
Employees
21-50
Durin logo

Automates mineral exploration drilling.

--
Seed
Founders
Teddy Feldman
HQ City
El Segundo, CA
Founded
2024
Total Raised
$5M
Employees
1-20
Last Round Date
Apr 2025
Earth AI logo

Discovers and develops critical minerals.

--
Series A
Founders
Roman Teslyuk
HQ City
San Mateo, CA
Founded
2017
Total Raised
$32.1M
Employees
21-50
Last Round Date
Jun 2025
Eden Geopower logo

Modernizes resource recovery systems.

--
Series A
Founders
Paris Smalls, Ammar Alali
HQ City
Cambridge, MA
Founded
2017
Total Raised
$16M
Employees
21-50
Electio logo

Controls energy and transport networks.

--
HQ City
Houston, TX
Employees
1-20
Electric Air logo

Installs fast, transparent heat pumps.

--
Seed
Founders
Chris Mui, Jeremy Osbourne
HQ City
Denver, CO
Founded
2023
Socials
Total Raised
$3M
Employees
1-20
Last Round Date
Sep 2023
Electric Era logo

Builds nationwide EV fast charging.

--
Series A
Founders
Quincy Edmund Lee, Elliot Owen
HQ City
Seattle, WA
Founded
2019
Total Raised
$28.4M
Employees
21-50
Last Round Date
Aug 2025
ElectroFlow Technologies logo

Extracts battery materials from brine.

--
Seed
Founders
Eric McShane, Evan Gardner
HQ City
San Bruno, CA
Founded
2023
Socials
Total Raised
$10M
Employees
1-20
Last Round Date
Oct 2024
Equilibrium Energy logo

Optimizes electric grid performance.

--
Series A
Founders
Ryan Hanley, Alvin Henrick
HQ City
Boston, MA
Founded
2021
Socials
Total Raised
$100M
Employees
51-200
Last Round Date
Mar 2025
Exowatt logo

Delivers modular clean energy systems.

--
Seed
Founders
Hannan Parvizian, Jack Abraham
HQ City
Miami, FL
Founded
2023
Socials
Total Raised
$140M
Employees
21-50
Last Round Date
Nov 2025
Fervo Energy logo

Advances geothermal clean energy.

--
Series C
Founders
Jack Norbeck, David Danielson, Tim Latimer
HQ City
Houston, TX
Founded
2017
Total Raised
$1.6B
Employees
51-200
Last Round Date
Dec 2025
Floodbase logo

Delivers real-time flood intelligence.

--
Seed
Founders
Beth Tellman, Bessie Schwarz
HQ City
New York, NY
Founded
2015
Total Raised
$24.7M
Employees
21-50
Last Round Date
Feb 2025
Form Energy logo

Builds iron-air batteries.

--
Series D+
Founders
Mateo Jaramillo, Yet-Ming Chiang, William Woodford
HQ City
Weirton, WV
Founded
2017
Total Raised
$1.4B
Employees
201-1,000
Last Round Date
Dec 2024
Furno logo

Manufactures zero-emission concrete.

--
Series A
Founders
Gurinder Nagra
HQ City
Mountain View, CA
Founded
2020
Socials
Total Raised
$12.5M
Employees
1-20
Fuse logo

Builds pulsed fusion generators.

--
Series A
Founders
JC Btaiche
HQ City
Palo Alto, CA
Founded
2018
Socials
Total Raised
$48.3M
Employees
21-50
Last Round Date
Aug 2024
Fuse Energy logo

Delivers end-to-end renewable power.

--
Series D+
Founders
Alan Chang, Charles Orr
HQ City
London, United Kingdom
Founded
2022
Socials
Total Raised
$170M
Employees
51-200
Last Round Date
Dec 2025
Glimpse logo

Monitors battery quality in real time.

--
Seed
Founders
Eric Moch, Peter Attia, Patrick Herring, Owen Miles, Amariah Condon, Bailey Buscarino, Jim Sehnert
HQ City
Somerville, MA
Founded
2023
Socials
Total Raised
$5M
Employees
1-20
Last Round Date
Mar 2025
Gridware logo

Deploys remote grid sensors.

--
Series A
Founders
Abdulrahman Bin Omar, Timothy Barat, Hall Chen
HQ City
San Francisco, CA
Founded
2020
Total Raised
$104.5M
Employees
51-200
Last Round Date
Oct 2025
Helion Energy logo

Builds commercial fusion generators.

--
Series D+
Founders
David Kirtley, George Votroubek, Chris Pihl, John Slough
HQ City
Everett, WA
Founded
2010
Total Raised
$1B
Employees
201-1,000
Last Round Date
Jan 2025
Heron Power logo

Builds grid-scale power electronics.

--
Series A
Founders
Drew Baglino
HQ City
Scotts Valley, CA
Founded
2024
Total Raised
$43M
Employees
51-200
Last Round Date
Jan 2025
Hgen logo

Produces affordable green hydrogen.

--
Seed
Founders
Colin Ho, Molly Yang
HQ City
Hawthorne, CA
Founded
2021
Total Raised
$7M
Employees
1-20
Last Round Date
Sep 2024
Holocene logo

Scales direct air capture.

--
Seed
Founders
Anca Timofte, Keeton Ross, Tobias Ruesch
HQ City
San Francisco, CA
Founded
2022
Socials
Total Raised
$3M
Employees
1-20
Last Round Date
Apr 2025
Impulse Labs logo

Builds battery-backed electric stoves.

--
Series B
Founders
Sam D'Amico
HQ City
San Francisco, CA
Founded
2021
Total Raised
$25M
Employees
21-50
Last Round Date
Oct 2025
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