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US Department of Energy Portfolio Companies

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

Last updated: July 2026

US Department of Energy Investment Overview

Portfolio Companies
434
Total Invested
$17.3B
Average Investment
$74.7M

US Department of Energy's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
NanoSieve2025GrantUndisclosedMiami Beach
6K2024Series EUndisclosedNorth Andover
Accelerate Wind2025SeedUndisclosedSt Louis
CorePower Magnetics2024GrantUndisclosedPittsburgh
Zap Energy2024Series DUndisclosedEverett
Manta Biofuel2023Equity CrowdfundingUndisclosedOwings Mills
Orbital Composites2023GrantUndisclosedCampbell
NanoGraf Corporation2024GrantUndisclosedChicago
Sylvatex, Inc.2022Series AUndisclosedSan Francisco
Operant Networks2022SeedUndisclosedRohnert Park

Complete List of US Department of Energy Portfolio Companies (434)

Export
#CompanyStageAmountLocation
1NanoSieveGrantUndisclosedMiami Beach, United States
26KSeries EUndisclosedNorth Andover, United States
3Accelerate WindSeedUndisclosedSt Louis, United States
4CorePower MagneticsGrantUndisclosedPittsburgh, United States
5Zap EnergySeries DUndisclosedEverett, United States
6Manta BiofuelEquity CrowdfundingUndisclosedOwings Mills, United States
7Orbital CompositesGrantUndisclosedCampbell, United States
8NanoGraf CorporationGrantUndisclosedChicago, United States
9Sylvatex, Inc.Series AUndisclosedSan Francisco, United States
10Operant NetworksSeedUndisclosedRohnert Park, United States
CleanTechHardwareSensor

Disruptive gas safety technology to remediate flammable & toxic gases in utilities, energy, oil&gas, maritime, C&I, and transportation

Miami Beach, United States
September 2025
Grant

Founder Contacts

19,000+ verified contacts

BiotechnologyIndustrial ManufacturingInformation TechnologyMachinery ManufacturingMarket ResearchNanotechnology

6K develops materials into products for the manufacturing, renewable energy, aerospace, and consumer electronics industries.

North Andover, United States
September 2024
Series E

Founder Contacts

19,000+ verified contacts

EnergyEnvironmental EngineeringIndustrialRenewable Energy

Accelerate Wind provides wind energy generation for the commercial and industrial spaces.

St Louis, United States
September 2025
Seed

Founder Contacts

19,000+ verified contacts

Advanced MaterialsElectronicsManufacturing

CorePower Magnetics’ patented combination of advanced manufacturing processes and novel materials increases electric vehicle ranges.

Pittsburgh, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

Clean EnergyCleanTechEnergyNuclearRenewable Energy

Zap Energy is developing compact fusion power that doesn't require magnets or lasers.

Everett, United States
September 2024
Series D

Founder Contacts

19,000+ verified contacts

AgricultureEnergyOil and GasRenewable Energy

Manta Biofuel produces cost-effective renewable fuel oil from algae.

Owings Mills, United States
September 2023
Equity Crowdfunding

Founder Contacts

19,000+ verified contacts

3D PrintingAdvanced MaterialsHardwareRobotics

Orbital Composites specializes in the fields of 3D printing, Composites, robotics automation, and carbon fiber.

Campbell, United States
September 2023
Grant

Founder Contacts

19,000+ verified contacts

Advanced MaterialsBatteryEnergySmall and Medium Businesses

NanoGraf is a battery development company researching ways to improve battery life and charging time.

Chicago, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

Advanced MaterialsBatteryClean EnergyEnergy StorageNanotechnology

SVX is future-proofing manufacturing of cathode active materials for lithium-ion batteries in electric vehicles and energy storage systems.

San Francisco, United States
September 2022
Series A

Founder Contacts

19,000+ verified contacts

Cyber SecurityEnergyInformation TechnologyNetwork Hardware

Operant Networks is a data-centric networking & cybersecurity technology provider

Rohnert Park, United States
September 2022
Seed

Founder Contacts

19,000+ verified contacts

ElectronicsEnergy EfficiencyHome Improvement

Harvest Thermal develops a control system for home use that integrates heating, hot water, and cooling with thermal storage.

Berkeley, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

ElectronicsHardwareLightingManufacturingSoftware

LUXTECH is an innovative led company focusing on specification-grade led modules for architectural lighting manufacturers.

Philadelphia, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

ComputerConsumer ElectronicsLightingManufacturingProduct DesignProduct Search

BIOS, a company bringing you better light through science.

Melbourne, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

Advanced MaterialsElectronicsEnergyEnergy EfficiencyEnergy StorageIncubatorsInnovation ManagementMachinery ManufacturingRenewable Energy

NETenergy is a thermal energy storage company that is creating a thermal battery designed to offset peak electricity load.

Chicago, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

CleanTechManufacturing

Evari is a clean-tech firm developing next-generation tiny, oil-free turbocompressors for heating and cooling applications.

Peterborough, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

Advanced MaterialsBatteryElectric VehicleElectronicsEnergy Storage

Eonix reduces the time and cost to design materials for lithium ion batteries that solve application specific pain points.

Knoxville, United States
September 2021
Grant

Founder Contacts

19,000+ verified contacts

AnalyticsClean EnergyEnergyInsurTechRenewable EnergySolar

kWh Analytics provides climate insurance and portfolio analytics for the solar industry.

Beaverton, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

Energy EfficiencyReal EstateRenewable Energy

FRAM Energy provides energy efficiency and renewable solutions for rental homes, focusing on de-risking energy retrofits.

New York, United States
September 2024
Grant

Founder Contacts

19,000+ verified contacts

AnalyticsArtificial Intelligence (AI)ConsumerEnergyEnergy ManagementSoftware

Innowatts uses AI to unlock meter-level data and provide consumer and business insights to energy retailers, utilities and grid operators.

Houston, United States
September 2023
Grant

Founder Contacts

19,000+ verified contacts

HardwareSoftwareSolar

Fracsun offers complete PV soiling monitoring solutions for solar array owners, operators, and developers.

San Luis Obispo, United States
September 2021
Series A

Founder Contacts

19,000+ verified contacts

AutomotiveElectric Vehicle

Inventev delivers mobile power generation using an innovative Plug-in Hybrid Electric Vehicle (PHEV) commercial truck architecture.

Detroit, United States
August 2022
Grant

Founder Contacts

19,000+ verified contacts

EnergyNatural ResourcesOil and Gas

Howard Energy Partners offers an integrated midstream platform that includes infrastructure and services from wellhead to market.

San Antonio, United States
August 2025
Debt Financing

Founder Contacts

19,000+ verified contacts

Energy Management

SkyNano is a science-based technology company focused on commercializing a free-market solution to carbon pollution.

Knoxville, United States
August 2024
Grant

Founder Contacts

19,000+ verified contacts

Customer ServiceEnergyRenewable Energy

CalWave Inc offer provides manufacturing and services in the ocean energy sector.

Berkeley, United States
August 2024
Grant

Founder Contacts

19,000+ verified contacts

BatteryCleanTechEnergyManufacturingTransportation

EnPower is developing fast charge Lithium-ion batteries to accelerate the adoption of electric vehicles.

Indianapolis, United States
August 2024
Grant

Founder Contacts

19,000+ verified contacts

Showing 1-25 of 434 portfolio companies

Frequently Asked Questions About US Department of Energy

How many companies has US Department of Energy invested in?

US Department of Energy has invested in 434 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does US Department of Energy invest in?

US Department of Energy's top investment sectors include Energy, Renewable Energy, Advanced Materials, Electronics, Manufacturing. The firm invests across 49 different industry categories.

What is the average investment size for US Department of Energy?

US Department of Energy's average investment size is $74.7M across its portfolio of 434 companies.

What are US Department of Energy's most recent investments?

Recent US Department of Energy portfolio additions include NanoSieve, 6K, Accelerate Wind, CorePower Magnetics, Zap Energy. These companies were founded in 2020 or later.

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