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Breakthrough Energy Ventures Portfolio Companies

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

Last updated: June 2026

Breakthrough Energy Ventures Investment Overview

Portfolio Companies
128
Total Invested
$4.3B
Average Investment
$42.6M

Breakthrough Energy Ventures's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
Barocal2026SeedUndisclosedLondon
Terra CO2 Technologies2026Venture - Series Unknown$82.0MGolden
GridCARE2026Series A$13.5MRedwood City
Mantle82026Series A$2.4MSassenage
IonQ2026GrantUndisclosedCollege Park
Aeroseal2026Series B$67.0MMiamisburg
Fervo Energy2026Grant$421.0MHouston
Mangrove Lithium2026Grant$35.0MDelta
Litherm Technologies2026Seed$7.6MWernigerode
MacroCycle Technologies2026Seed$3.0MCambridge

Complete List of Breakthrough Energy Ventures Portfolio Companies (128)

Export
#CompanyStageAmountLocation
1BarocalSeedUndisclosedLondon, United Kingdom
2Terra CO2 TechnologiesVenture - Series Unknown$82.0MGolden, United States
3GridCARESeries A$13.5MRedwood City, United States
4Mantle8Series A$2.4MSassenage, France
5IonQGrantUndisclosedCollege Park, United States
6AerosealSeries B$67.0MMiamisburg, United States
7Fervo EnergyGrant$421.0MHouston, United States
8Mangrove LithiumGrant$35.0MDelta, Canada
9Litherm TechnologiesSeed$7.6MWernigerode, Germany
10MacroCycle TechnologiesSeed$3.0MCambridge, United States
EnergyEnergy EfficiencyEnergy ManagementHeatingVentilationand Air Conditioning (HVAC)Information Technology

Barocal is a refrigeration technology company that develops solid-state cooling and heating systems for efficient cooling.

London, United Kingdom
May 2026
Seed

Founder Contacts

19,000+ verified contacts

Building MaterialCleanTechConstructionIndustrial Engineering

Terra CO2 Technologies specializes in the production of low-carbon alternatives for cement replacement.

Golden, United States
May 2026
$82.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

AnalyticsArtificial Intelligence (AI)Data CenterEnergySoftware

GridCARE provides AI software for electrical grid capacity planning.

Redwood City, United States
May 2026
$13.5M
Series A

Founder Contacts

19,000+ verified contacts

EnergyManufacturingNatural ResourcesSustainability

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

Sassenage, France
May 2026
$2.4M
Series A

Founder Contacts

19,000+ verified contacts

ComputerElectronicsFinanceInformation ServicesInformation TechnologyMobile AppsQuantum ComputingSoftware

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

College Park, United States
April 2026
Grant

Founder Contacts

19,000+ verified contacts

CleanTechGreen BuildingGreenTechIndustrial EngineeringMechanical Engineering

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

Miamisburg, United States
April 2026
$67.0M
Series B

Founder Contacts

19,000+ verified contacts

EnergyEnergy EfficiencyEnergy ManagementGeothermal EnergyNuclearRenewable Energy

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

Houston, United States
April 2026
$421.0M
Grant

Founder Contacts

19,000+ verified contacts

BatteryElectric VehicleRenewable Energy

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

Delta, Canada
April 2026
$35.0M
Grant

Founder Contacts

19,000+ verified contacts

CleanTechManufacturingRenewable Energy

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

Wernigerode, Germany
March 2026
$7.6M
Seed

Founder Contacts

19,000+ verified contacts

CleanTechPlastics and Rubber ManufacturingRecycling

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

Cambridge, United States
March 2026
$3.0M
Seed

Founder Contacts

19,000+ verified contacts

AerospaceEnergyHardwareSolar

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

South San Francisco, United States
March 2026
$4.0M
Seed

Founder Contacts

19,000+ verified contacts

Environmental EngineeringGreenTechOil and Gas

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

Rockledge, United States
March 2026
$20.3M
Series Unknown

Founder Contacts

19,000+ verified contacts

ForestrySustainability

Restoring forests for future generations

Sonora, United States
October 2025
$7.0M
Seed

Founder Contacts

19,000+ verified contacts

Biotechnology

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

Charlestown, United States
September 2025
$7.0M
Series A

Founder Contacts

19,000+ verified contacts

EnergyPower GridRenewable Energy

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

Newark, United States
July 2025
$18.7M
Seed

Founder Contacts

19,000+ verified contacts

EnergyHydroelectricRenewable EnergySupply Chain Management

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

Alameda, United States
July 2025
$15.4M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

EnergyManufacturingPrecious Metals

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

Conroe, United States
July 2025
$17.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

EnergyEnterprise SoftwareSoftware

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

Calgary, Canada
July 2025
$44.0M
Series B

Founder Contacts

19,000+ verified contacts

Electrical Distribution

Heron Power is an energy technology startup focused on developing power electronics for the modern electrical grid.

Santa Cruz, United States
May 2025
$38.0M
Series A

Founder Contacts

19,000+ verified contacts

Animal FeedBiotechnologyLife ScienceLivestock

Hoofprint Biome is a biotechnology company that develops probiotics that improve the sustainability of ruminant livestock production.

Raleigh, United States
April 2025
$15.0M
Series A

Founder Contacts

19,000+ verified contacts

EnergySolar

Aetherflux develops a novel design for space.

San Carlos, United States
April 2025
$50.0M
Series A

Founder Contacts

19,000+ verified contacts

Biomass EnergyBiopharmaChemicalCleanTechEnergySustainability

Bloom Biorenewables is making biomass a true alternative to petroleum.

Fribourg, Switzerland
April 2025
$14.7M
Series A

Founder Contacts

19,000+ verified contacts

EnergySoftwareSolar

Terabase Energy is a web-based tool that reduces cost and deployment timelines by digitalizing the solar power plant.

Berkeley, United States
March 2025
$130.0M
Series C

Founder Contacts

19,000+ verified contacts

CommercialEnergyPower Grid

Equilibrium Energy is a Climate Generation power company focused on the creation and proliferation of clean energy.

San Francisco, United States
March 2025
$28.0M
Series B

Founder Contacts

19,000+ verified contacts

AgricultureBiotechnologyIndustrial Engineering

Decibel Bio operates as a plant biotechnology company.

Berkeley, United States
March 2025
$12.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

Showing 1-25 of 128 portfolio companies

Frequently Asked Questions About Breakthrough Energy Ventures

How many companies has Breakthrough Energy Ventures invested in?

Breakthrough Energy Ventures has invested in 128 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, CleanTech, Renewable Energy, Software, Industrial Engineering. The firm invests across 55 different industry categories.

What is Breakthrough Energy Ventures's largest investment?

Among tracked funding rounds, Fervo Energy received $421.0M in a Grant round. Breakthrough Energy Ventures's total known invested capital is $4.3B.

What is the average investment size for Breakthrough Energy Ventures?

Breakthrough Energy Ventures's average investment size is $42.6M across its portfolio of 128 companies.

What are Breakthrough Energy Ventures's most recent investments?

Recent Breakthrough Energy Ventures portfolio additions include Barocal, Terra CO2 Technologies, GridCARE, Mantle8, IonQ. These companies were founded in 2020 or later.

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