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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
Circ2023Series B$25.0MDanville
LuxWall2025Series C$77.0MYpsilanti
Fleetzero2026Series A$43.0MAuburn
Malta2026Venture - Series Unknown$24.0MCambridge
Sortera Technologies2025Venture - Series Unknown$45.0MFort Wayne
Mantle82026Grant$2.4MSassenage
RIFT2026Series B$97.2MEindhoven
Litherm Technologies2026Seed$7.6MWernigerode
MacroCycle Technologies2026Seed$3.0MCambridge
Data Blanket2026GrantUndisclosedBellevue

Complete List of Breakthrough Energy Ventures Portfolio Companies (128)

Export
#CompanyStageAmountLocation
51CircSeries B$25.0MDanville, United States
52LuxWallSeries C$77.0MYpsilanti, United States
53FleetzeroSeries A$43.0MAuburn, United States
54MaltaVenture - Series Unknown$24.0MCambridge, United States
55Sortera TechnologiesVenture - Series Unknown$45.0MFort Wayne, United States
56Mantle8Grant$2.4MSassenage, France
57RIFTSeries B$97.2MEindhoven, The Netherlands
58Litherm TechnologiesSeed$7.6MWernigerode, Germany
59MacroCycle TechnologiesSeed$3.0MCambridge, United States
60Data BlanketGrantUndisclosedBellevue, United States
RecyclingService IndustrySustainability

Circ helps industries meet consumer expectations for sustainability without compromises in quality, price, or convenience.

Danville, United States
March 2023
$25.0M
Series B

Founder Contacts

19,000+ verified contacts

Building MaterialConstructionManufacturingSustainability

LuxWall is a building materials manufacturer that innovates the design and production of vacuum-insulated glass.

Ypsilanti, United States
December 2025
$77.0M
Series C

Founder Contacts

19,000+ verified contacts

BatteryFreight ServiceMarine Transportation

Fleetzero is building battery electric cargo ships to affordably decarbonize ocean freight.

Auburn, United States
January 2026
$43.0M
Series A

Founder Contacts

19,000+ verified contacts

EnergyRenewable EnergySolar

Malta is a provider of industrial-grade, grid-scale energy storage, and electro-thermal energy storage solutions for energy industry.

Cambridge, United States
January 2026
$24.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)Information TechnologyManufacturing

Sortera Alloys manufactures low-cost, high-quality metal alloys for domestic manufacturing using its artificial intelligence technology.

Fort Wayne, United States
November 2025
$45.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

ManufacturingNatural ResourcesSustainability

Mantle8 is a natural hydrogen exploration company.

Sassenage, France
March 2026
$2.4M
Grant

Founder Contacts

19,000+ verified contacts

Clean EnergyRenewable Energy

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

Eindhoven, The Netherlands
March 2026
$97.2M
Series B

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

AerospaceArtificial Intelligence (AI)Real TimeSoftware

Data Blanket develops drone swarm hardware and AI-driven software designed to support wildfire response teams.

Bellevue, United States
January 2026
Grant

Founder Contacts

19,000+ verified contacts

DeliveryLogisticsSupply Chain ManagementTransportation

Max addresses the last-mile delivery and online-retail problems by using mobile and web platforms.

Lagos, Nigeria
January 2026
$24.0M
Series B

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
January 2026
$85.0M
Debt Financing

Founder Contacts

19,000+ verified contacts

Clean EnergyEnergyNuclear

Stellarator technology to transform energy markets with fusion power.

Oak Ridge, United States
January 2026
$87.0M
Convertible Note

Founder Contacts

19,000+ verified contacts

AerospaceAir TransportationCleanTechIndustrial

ZeroAvia develops hydrogen-electric powertrains for zero-emission aviation solutions.

Hollister, United States
December 2025
Series Unknown

Founder Contacts

19,000+ verified contacts

Animal FeedCleanTechFood ProcessingRecyclingSustainabilityWaste Management

Mill offers a kitchen bin that dries, shrinks, and de-stinks leftover food, eliminating food waste.

San Bruno, United States
December 2025
Series Unknown

Founder Contacts

19,000+ verified contacts

Advanced MaterialsIndustrial EngineeringManufacturingMechanical EngineeringSemiconductor

Boston Materials is a manufacturer of advanced materials for semiconductors and aerospace platforms.

Billerica, United States
December 2025
Series Unknown

Founder Contacts

19,000+ verified contacts

Carbon CaptureMineralMining TechnologySustainability

Heirloom is a provider of direct air capture technology to enhance the natural process of CO2 absorption from the atmosphere.

Brisbane, United States
December 2025
Undisclosed

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)MineralMiningSoftware

KoBold Metals is an AI-powered critical mineral startup that discovers essential materials for electric vehicles and renewable energy.

Berkeley, United States
November 2025
$280.0M
Series C

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

AutomotiveElectric VehicleMachine LearningRenewable EnergySoftwareTransportation

WeaveGrid develops electrification software for the scalable deployment of electric vehicles on the electric grid.

San Francisco, United States
September 2025
Series Unknown

Founder Contacts

19,000+ verified contacts

BatteryEnergyRenewable Energy

Fourth Power is an energy storage startup that uses thermal batteries.

Cambridge, United States
September 2025
$20.0M
Series A

Founder Contacts

19,000+ verified contacts

Consumer GoodsElectronicsEnergyEnergy StorageHeatingVentilationand Air Conditioning (HVAC)

Blue Frontier specializes in air conditioning systems designed for sustainability, comfort, and energy storage.

Boca Raton, United States
September 2025
Non Equity Assistance

Founder Contacts

19,000+ verified contacts

BiotechnologyManufacturingSustainabilityWaste Management

Bloomlabs provides a method to catalyze waste value by regenerating it as adaptable and appealing bio-plastics and textile fibers.

New York, United States
August 2025
$7.5M
Seed

Founder Contacts

19,000+ verified contacts

Carbon CaptureCleanTechEnvironmental EngineeringSustainability

Mission Zero is an Electrochemical that removes carbon dioxide from the air and concentrates it for a variety of sequestration pathways.

London, United Kingdom
August 2025
Non Equity Assistance

Founder Contacts

19,000+ verified contacts

Showing 51-75 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 Sustainability, Manufacturing, Renewable Energy, CleanTech, Energy. The firm invests across 51 different industry categories.

What is Breakthrough Energy Ventures's largest investment?

Among tracked funding rounds, KoBold Metals received $280.0M in a Series C 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 Circ, LuxWall, Fleetzero, Malta, Sortera Technologies. These companies were founded in 2020 or later.

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