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Breakthrough Energy Ventures — Portfolio, Page 2

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

174
Companies
$6.1B
Total invested
$35.2M
Avg. check
55
Industries
Energy 9Renewable Energy 8Manufacturing 5CleanTech 4GreenTech 3Sustainability 2+49 more
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Portfolio companies

Showing 2548 of 174
Mantle8
May 2026

Mantle8 develops natural hydrogen exploration technology focused on identifying and evaluating underground hydrogen reservoirs.

Energy · Sassenage$36.4M Series A
Cowboy Space
May 2026

Cowboy Space is a space technology company developing solar-powered orbital data centers for AI computing infrastructure.

Aerospace · San Carlos$275.0M Series B
IonQ
April 2026

IONQ offers enterprise-grade quantum systems designed for businesses seeking to harness the power of quantum computing in their operations.

Computer · College Park$20.0M Grant
Aeroseal
April 2026

Aeroseal is a climate tech company with a mission to shrink carbon emissions from buildings — as much as 1 gigaton of CO2 annually.

CleanTech · Miamisburg$20.0M Series B
Verdox
April 2022

Verdox develops an electric carbon removal technology designed to eliminate emissions from aluminum production.

CleanTech · WoburnGrant
Fervo Energy
April 2026

Fervo Energy develops and operates clean energy technology to generate carbon-free energy from geothermal systems.

Energy · Houston$494K Grant
Mangrove Lithium
April 2026

Mangrove Lithium is a lithium refining and materials technology company that produces battery-grade lithium hydroxide and lithium carbonate.

Battery · Delta$16.0M Grant
Baseload Capital
April 2025

Baseload Capital is a Specialized Investment Entity investing in Heat Power.

Banking · StockholmCorporate Round
ClearFlame Engines
March 2023

ClearFlame decarbonizes heavy-duty engines while reducing operating costs, to protect the future from the challenge of diesel fuel.

Automotive · Geneva$30.0M Series B
Our Next Energy
March 2025

Our Next Energy is a developer of energy storage technology to expand access to sustainable power.

Battery · NoviVenture - Series Unknown
MacroCycle Technologies
March 2026

MacroCycle Technologies is a cleantech company that develops sustainable and zero-carbon plastic upcycling solutions.

CleanTech · Cambridge$3.0M Seed
RIFT
March 2026

RIFT is a startup on a mission towards a sustainable future that is powered by clean and renewable energy.

Clean Energy · Eindhoven$97.2M Series B
Litherm Technologies
March 2026

Litherm Technologies is a German deep‑tech startup focused on decarbonizing lime and cement production using fully electric kiln technology.

CleanTech · Wernigerode$7.6M Seed
Arinna
March 2026

Arinna builds ultra-light, flexible high-power solar tech to energize space infrastructure and next-gen power systems.

Aerospace · South San Francisco$4.0M Seed
Rumin8
March 2026

Rumin8 develops a feed supplement that reduces methane emissions in livestock.

AgTech · Perth$3.0M Venture - Series Unknown
HyperHeat
March 2025

Climate Tech // Industrial Heat

Manufacturing · OffenburgNon-equity Assistance
M2X Energy
March 2026

M2X Energy is a scalable methane conversion technology company that provides automated gas-to-product systems for methane conversion.

Environmental Engineering · Rockledge$20.3M Series Unknown
LanzaJet
February 2026

LanzaJet is a provider and producer of Sustainable Aviation Fuel (SAF) technology, dedicated to accelerating the transition to clean energy.

Air Transportation · Illinois City$34.0M Corporate Round
Kodama Systems
October 2025

Restoring forests for future generations

Forestry · Sonora$7.0M Seed
Arkea Bio
September 2025

Arkea Bio develops technology to cut greenhouse gas (GHG) emissions from the agricultural industry.

Biotechnology · Charlestown$7.0M Series A
Still Bright
July 2025

Still Bright has discovered transformative reaction chemistry to enable the rapid, clean, and complete recovery of copper.

Energy · Newark$18.7M Seed
Natel Energy
July 2025

Natel Energy is an engineering company working to support healthy rivers & a reliable grid by designing FishSafe™ hydroelectric turbines.

Energy · Alameda$15.4M Venture - Series Unknown
Hertha Metals
July 2025

Hertha Metals is a manufacturing industry that designs and manufactures steel from any grade of iron ore without the use of coal.

Energy · Conroe$17.0M Venture - Series Unknown
GeologicAI
July 2025

GeologicAI is a software company specializes in Oil and Gas software.

Energy · Calgary$44.0M Series B

Where Breakthrough Energy Ventures invests

Energy9
Renewable Energy8
Manufacturing5
CleanTech4
GreenTech3
Sustainability2

About Breakthrough Energy Ventures's portfolio

How many companies has Breakthrough Energy Ventures invested in?

Breakthrough Energy Ventures has invested in 174 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Breakthrough Energy Ventures invest in?

Breakthrough Energy Ventures's top investment sectors include Energy, Renewable Energy, Manufacturing, CleanTech, GreenTech. The firm invests across 55 different industry categories.

What is Breakthrough Energy Ventures's largest investment?

Among tracked funding rounds, Cowboy Space received $275.0M in a Series B round. Breakthrough Energy Ventures's total known invested capital is $6.1B.

What is the average investment size for Breakthrough Energy Ventures?

Breakthrough Energy Ventures's average investment size is $35.2M across its portfolio of 174 companies.

What are Breakthrough Energy Ventures's most recent investments?

Recent Breakthrough Energy Ventures portfolio additions include Mantle8, Cowboy Space, IonQ, Aeroseal, Verdox. These companies were founded in 2020 or later.

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