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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
First Light Solutions2024Grant$400K
Prometheus Materials2024Grant$10.0MBoulder
Relevate Power2024Grant$4.9MNew York
Hempitecture2024Grant$8.4MKetchum
Spruce Root2024Grant$5KJuneau
Energetic Capital2024Series UnknownUndisclosedBoston
Sparkz2024Grant$9.8MKnoxville
LongPath Technologies2024Debt Financing$162.4MBoulder
Sironix Renewables2024Series Unknown$3.0MSeattle
HiT Nano2024Grant$75KBordentown

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

Export
#CompanyStageAmountLocation
226First Light SolutionsGrant$400K
227Prometheus MaterialsGrant$10.0MBoulder, United States
228Relevate PowerGrant$4.9MNew York, United States
229HempitectureGrant$8.4MKetchum, United States
230Spruce RootGrant$5KJuneau, United States
231Energetic CapitalSeries UnknownUndisclosedBoston, United States
232SparkzGrant$9.8MKnoxville, United States
233LongPath TechnologiesDebt Financing$162.4MBoulder, United States
234Sironix RenewablesSeries Unknown$3.0MSeattle, United States
235HiT NanoGrant$75KBordentown, United States
Advanced MaterialsArtificial Intelligence (AI)Carbon CaptureIndustrialManufacturing

AI powered discovery of breakthrough materials for industrial process cost reduction

November 2024
$400K
Grant

Founder Contacts

19,000+ verified contacts

Advanced MaterialsCleanTechGreen BuildingSustainability

Prometheus Materials develops bio-cement with zero carbon emissions to reduce the global CO2 emissions.

Boulder, United States
November 2024
$10.0M
Grant

Founder Contacts

19,000+ verified contacts

Renewable Energy

Relevate Power restores local dams, preserving history and enhancing clean energy.

New York, United States
November 2024
$4.9M
Grant

Founder Contacts

19,000+ verified contacts

Building MaterialConstructionGreen BuildingGreenTechManufacturingSustainability

Hempitecture develops sustainable materials, equipment, and systems for constructing buildings.

Ketchum, United States
November 2024
$8.4M
Grant

Founder Contacts

19,000+ verified contacts

CommunitiesCreditFinancial Services

Spruce Root is a non-profit community development financial institution that provides financing services, assistance, and business coaching.

Juneau, United States
October 2024
$5K
Grant

Founder Contacts

19,000+ verified contacts

Big DataClean EnergyCleanTechCreditEnergy EfficiencyFinTechInsuranceRenewable EnergyRisk ManagementSoftware

Energetic Capital provides renewable energy financing services for commercial and industrial projects.

Boston, United States
October 2024
Series Unknown

Founder Contacts

19,000+ verified contacts

Renewable EnergySoftware

Sparkz is a renewable energy company that develops electrochemical energy storage solutions.

Knoxville, United States
October 2024
$9.8M
Grant

Founder Contacts

19,000+ verified contacts

IndustrialInfrastructureLaserOil and Gas

LongPath Technologies provides continuous emissions monitoring solutions across the oil and gas supply chain.

Boulder, United States
October 2024
$162.4M
Debt Financing

Founder Contacts

19,000+ verified contacts

EnergyEnvironmental ConsultingRenewable Energy

Sironix Renewables is a seed-stage company that develops environmentally friendly and safe chemicals.

Seattle, United States
October 2024
$3.0M
Series Unknown

Founder Contacts

19,000+ verified contacts

BatteryManufacturingNanotechnology

Battery Cathode Manufacturing Technology, Cathode Supplier

Bordentown, United States
October 2024
$75K
Grant

Founder Contacts

19,000+ verified contacts

EnergyEnergy EfficiencyRenewable Energy

Koloma is a geologic hydrogen company that leverages technology and data to identify and commercialize geologic hydrogen resources.

Denver, United States
October 2024
$50.0M
Series B

Founder Contacts

19,000+ verified contacts

EnergyEnergy StorageRenewable Energy

Clean Flexible Energy is a renewable energy company that focuses on the projects to accelerate the transition to renewable energy.

San Juan, Puerto Rico
October 2024
$861.3M
Debt Financing

Founder Contacts

19,000+ verified contacts

Advanced MaterialsBuilding MaterialConstructionRenewable Energy

C-Crete Technologies is a technology development company building and commercializing technological paradigm shifts of the future.

San Leandro, United States
October 2024
$10.4M
Grant

Founder Contacts

19,000+ verified contacts

Advanced MaterialsBatteryChemicalClean EnergyElectronicsFuel CellInformation TechnologyRenewable EnergyWaterWater Purification

Ionomr makes Aemion™ & Pemion™, next-gen ion-exchange materials for breakthrough clean technology applications involving electrochemistry.

Vancouver, Canada
October 2024
Series Unknown

Founder Contacts

19,000+ verified contacts

EnergyManufacturingRenewable Energy

Verdagy enables the large-scale production of green hydrogen by innovating water electrolysis technology.

Moss Landing, United States
October 2024
Series Unknown

Founder Contacts

19,000+ verified contacts

ElectronicsIndustrialSmart BuildingWireless

Enables safe, effective and customizable transmission of power over-the-air using proprietary mmWave and Smart RF Lensing technology

Pasadena, United States
October 2024
Grant

Founder Contacts

19,000+ verified contacts

AquacultureFood and BeverageSeafood

Maine Ocean Farms sustainably grows premium oysters, honoring coastal heritage and nurturing a strong ocean connection.

Freeport, United States
September 2024
$1.0M
Grant

Founder Contacts

19,000+ verified contacts

Recycling

Blue Whale Materials is an li-ion recycling solution.

Washington, United States
September 2024
$55.0M
Grant

Founder Contacts

19,000+ verified contacts

Advanced MaterialsEnergySmall and Medium Businesses

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

Chicago, United States
September 2024
$60.0M
Grant

Founder Contacts

19,000+ verified contacts

Mining

South32's Hermosa project is the only advanced mine development project in the United States.

Patagonia, United States
September 2024
$166.0M
Grant

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
$2.0M
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
$1.7M
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
$1.0M
Grant

Founder Contacts

19,000+ verified contacts

Electrical DistributionElectronicsRenewable Energy

Stepwise provides home electrification services for EV charger and heat pump installations

Buffalo, United States
September 2024
$1.4M
Grant

Founder Contacts

19,000+ verified contacts

ConsultingEnvironmental ConsultingInformation Services

Effecterra is a talent and technology organization that helps to develop, commercialize, deploy and scale climate solutions.

Reno, United States
September 2024
$1.2M
Grant

Founder Contacts

19,000+ verified contacts

Showing 226-250 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 Renewable Energy, Manufacturing, Advanced Materials, Energy, Electronics. The firm invests across 53 different industry categories.

What is US Department of Energy's largest investment?

Among tracked funding rounds, Clean Flexible Energy received $861.3M in a Debt Financing round. US Department of Energy's total known invested capital is $17.3B.

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 First Light Solutions, Prometheus Materials, Relevate Power, Hempitecture, Spruce Root. These companies were founded in 2020 or later.

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