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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
474
Total Invested
$17.3B
Average Investment
$74.7M

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

Company NameFoundedFunding StageAmountCity
Alphacore Inc2024Grant$1.1MAzusa
HighRI Optics2024Grant$1.1MOakland
Celadyne Technologies2024Seed$4.5MChicago
Zeta Energy2024Grant$4.0MHouston
Bullard Center for Environmental and Climate Justice2024GrantUndisclosedHouston
Cinco Research2024Grant$250KElizabethton
X-ScaleSolutions2024Grant$207KColumbus
IonicScale2024Grant$250KAtlanta
Recon-RF2024Grant$206KSan Diego
RadiaSoft2024Grant$206KBoulder

Complete List of US Department of Energy Portfolio Companies (474)

Export
#CompanyStageAmountLocation
376Alphacore IncGrant$1.1MAzusa, United States
377HighRI OpticsGrant$1.1MOakland, United States
378Celadyne TechnologiesSeed$4.5MChicago, United States
379Zeta EnergyGrant$4.0MHouston, United States
380Bullard Center for Environmental and Climate JusticeGrantUndisclosedHouston, United States
381Cinco ResearchGrant$250KElizabethton, United States
382X-ScaleSolutionsGrant$207KColumbus, United States
383IonicScaleGrant$250KAtlanta, United States
384Recon-RFGrant$206KSan Diego, United States
385RadiaSoftGrant$206KBoulder, United States
ConsultingElectronicsSemiconductor

Alphacore is a leading-edge process technology nodes for demanding conventional and harsh-environment applications.

Azusa, United States
February 2024
$1.1M
Grant

Founder Contacts

19,000+ verified contacts

Nanotechnology

HighRI Optics, Inc. is a spin-off company of aBeam Technologies, headquartered in Oakland, CA.

Oakland, United States
February 2024
$1.1M
Grant

Founder Contacts

19,000+ verified contacts

ChemicalEnergy StorageIndustrial

Celadyne Technologies develops membranes for use in electrolyzers and fuel cells that require minimal heat and water management.

Chicago, United States
February 2024
$4.5M
Seed

Founder Contacts

19,000+ verified contacts

BatteryEnergyEnergy EfficiencyRenewable Energy

Zeta Energy develop and commercialize safe rechargeable batteries that are higher performing, lower cost and sustainably manufactured.

Houston, United States
February 2024
$4.0M
Grant

Founder Contacts

19,000+ verified contacts

Environmental Consulting

Bullard Center for Environmental and Climate Justice is connecting the dots on environmental, transportation, climate, energy.

Houston, United States
January 2024
Grant

Founder Contacts

19,000+ verified contacts

ConsultingManufacturingService Industry

Cinco Research focuses on research & development in the defense, energy, and environmental industries.

Elizabethton, United States
January 2024
$250K
Grant

Founder Contacts

19,000+ verified contacts

AnalyticsBig DataCloud ComputingInformation Technology

X-ScaleSolutions is an IT company specialized in providing solutions for HPC, big data, deep learning and cloud computing.

Columbus, United States
January 2024
$207K
Grant

Founder Contacts

19,000+ verified contacts

Market ResearchService Industry

IonicScale is an operator of a research and development firm that focuses on the development of tiny mass spectrometer technology.

Atlanta, United States
January 2024
$250K
Grant

Founder Contacts

19,000+ verified contacts

Machinery ManufacturingManufacturingProduct Design

Recon-RF designs and manufactures MMICs, integrated microwave assemblies, and RF modules.

San Diego, United States
January 2024
$206K
Grant

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)Cloud ComputingMachine LearningOpen SourceProduct ResearchSoftware

RadiaSoft is a R&D company that provides software development, COMSOL, science consulting and machine learning services.

Boulder, United States
January 2024
$206K
Grant

Founder Contacts

19,000+ verified contacts

ConsultingEnvironmental EngineeringIndustrial

Subsurface Insights is a geophysical research and development company.

Hanover, United States
January 2024
$250K
Grant

Founder Contacts

19,000+ verified contacts

BiotechnologyDeveloper ToolsLife ScienceProduct Research

Mimetics is a technology and science company that specializes in biological processes through computational and mathematical tools.

Durham, United States
January 2024
$178K
Grant

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)Software

MyZeus.ai provides AI models that turn Earth observation data into environmental and weather insights for decision-makers.

Cambridge, United States
January 2024
$250K
Grant

Founder Contacts

19,000+ verified contacts

AnalyticsCloud StorageSoftware

AirMettle develops a real-time smart data lake solution that simplifies big data analytics and accelerates processing.

Houston, United States
January 2024
$207K
Grant

Founder Contacts

19,000+ verified contacts

Health CareMachinery ManufacturingManufacturingMedical Device

Sigray is a sceintific instrument manufacturing company that develops X-ray microscopes, optics and detector technologies.

Concord, United States
January 2024
$250K
Grant

Founder Contacts

19,000+ verified contacts

Image RecognitionLife Science

Mizar Imaging is a light sheet illumination system that is modular and designed for high-resolution imaging.

Woods Hole, United States
January 2024
$257K
Grant

Founder Contacts

19,000+ verified contacts

Manufacturing

Manufacturer of Green Surfactants and Specialty Chemicals.

Salt Lake City, United States
January 2024
$206K
Grant

Founder Contacts

19,000+ verified contacts

AnalyticsBiotechnologyConsulting

Verinomics is a consultancy that offers data analysis, genomic and computational services for product development and trait discovery.

New Haven, United States
January 2024
$250K
Grant

Founder Contacts

19,000+ verified contacts

AnalyticsArtificial Intelligence (AI)Cloud ComputingInformation TechnologyMachine LearningSoftware

Visimo provides AI solutions, data science tools, cloud-based software, BI dashboards, analytics, prototyping, and web application services.

Coraopolis, United States
January 2024
$207K
Grant

Founder Contacts

19,000+ verified contacts

ElectronicsIndustrial EngineeringManufacturingMechanical Engineering

Sentek Instrument manufactures a range of fiber optic sensing solutions and sensor systems for various industries.

Blacksburg, United States
January 2024
$200K
Grant

Founder Contacts

19,000+ verified contacts

IndustrialSensorTest and Measurement

Nikira Labs provides natural gas leak detectors, computational microscopy and visibility sensors.

Mountain View, United States
January 2024
$257K
Grant

Founder Contacts

19,000+ verified contacts

Carbon CaptureChemical EngineeringOil and GasRenewable Energy

Susteon to develop a direct air capture (DAC) technology for capturing and converting carbon dioxide directly.

Cary, United States
December 2023
$200K
Grant

Founder Contacts

19,000+ verified contacts

Environmental EngineeringWaste ManagementWater

Savengy Technologies develops and delivers solutions for the thermal desalination and distillation industries.

Orlando, United States
December 2023
$200K
Grant

Founder Contacts

19,000+ verified contacts

BatteryManufacturingRenewable EnergySemiconductor

Element Energy is a startup with technology that significantly improves the performance, reliability and cost of large battery packs.

Menlo Park, United States
November 2023
$73.0M
Series B

Founder Contacts

19,000+ verified contacts

EnergyEnvironmental ConsultingOil and GasRenewable EnergySustainability

Marin Clean Energy is an energy-based firm that offers renewable local electricity services by reducing greenhouse emissions.

San Rafael, United States
November 2023
$1.0M
Grant

Founder Contacts

19,000+ verified contacts

Showing 376-400 of 474 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 474 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 Manufacturing, Consulting, Renewable Energy, Analytics, Software. The firm invests across 44 different industry categories.

What is US Department of Energy's largest investment?

Among tracked funding rounds, Element Energy received $73.0M in a Series B 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 474 companies.

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

Recent US Department of Energy portfolio additions include Alphacore Inc, HighRI Optics, Celadyne Technologies, Zeta Energy, Bullard Center for Environmental and Climate Justice. These companies were founded in 2020 or later.

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