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US Department of Energy — Portfolio, Page 4

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

629
Companies
$65.5B
Total invested
$130.5M
Avg. check
46
Industries
Energy 9Renewable Energy 6Energy Storage 5Clean Energy 4Manufacturing 4Solar 4+40 more
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Portfolio companies

Showing 7396 of 629
EarthEn
August 2025

EarthEn works on technology to provide a carbon-negative, climate-positive long-duration energy storage solution.

Electrical Distribution · PhoenixNon-equity Assistance
Marathon Fusion
August 2024

Marathon Fusion designs, engineers and scales next-generation technologies to enable the deployment of fusion power plants.

San FranciscoGrant
Power to Hydrogen
August 2024

Power to Hydrogen develops advanced AEM electrolyzers that integrate with renewables while eliminating precious, expensive metals.

Clean Energy · Columbus$18.0M Series A
Wright Electric
August 2024

Wright Electric is a leader in the future of sustainable, lower emissions air travel.

Aerospace · AlbanyGrant
Baryon
August 2021

Baryon develops energy efficiency technologies with applications in building cooling, water production, cold chain, and others.

Energy Efficiency · Wilmington$2.1M Grant
Tyfast
August 2025

Tyfast is a battery manufacturing company that develops fast-charging batteries and technologies for heavy-duty vehicles.

Advanced Materials · San Diego$100K Grant
Cypienta
August 2023

Alerts, events, and logs, RULE-LESS correlation & contextualization made instant, scalable, & explainable, right in your SIEM/SOAR.

Artificial Intelligence (AI) · San FranciscoNon-equity Assistance
Element 16 Technologies
August 2021

Element 16 is a developer of energy storage system.

Energy · Arcadia$1.4M Grant
Ampaire
August 2025

Ampaire's mission is to be the world's most trusted developer of practical, compelling electric aircraft.

Aerospace · Long BeachNon-equity Assistance
The Appalachian Regional Clean Hydrogen Hub
July 2024

The Appalachian Regional Clean Hydrogen Hub's mission is to provide an interconnected, full value chain H2Hub solution.

Commercial · Morgantown$925.0M Grant
Planted
July 2025

Smarter Solar Deployment—From Planning to Power

Clean Energy · Oakland$12.0M Series A
AeroShield
July 2024

AeroShield is a B2B startup that develops super-insulating transparent materials.

Consumer · Cambridge$5.0M Seed
Thea Energy
July 2026

Thea Energy is an energy company that develops fusion energy technology to simplify the construction and operation of fusion power systems.

Clean Energy · Kearny$20.0M Grant
Pacific Northwest Hydrogen Association
July 2024

Pacific Northwest Hydrogen Association aims to enhance lives by establishing a clean hydrogen ecosystem throughout the Pacific Northwest.

Clean Energy · Seattle$27.5M Grant
EVgo
July 2025

EVgo provides fast charging networks for private and public electric vehicles.

Automotive · Los Angeles$225.0M Post-IPO Debt
BlueQubit
July 2026

BlueQubit is a quantum software platform that offers software library for enterprise, defense, and academic customers.

Computer · Los Angeles$1.5M Grant
Sensible Photonics
July 2024

Sensible Photonics develops low-cost fiber optic sensing technologies for the monitoring of grid equipment and energy storage solutions.

Electronics · Pittsburgh$600K Grant
Sofab
July 2026

SoFab develops and manufactures nanoparticle materials for perovskite solar cells.

Industrial · Louisville$6.0M Seed
EELI Technology
July 2026

Enables economic lithium production from low-grade resources previously considered infeasible, leveraging applied electrochemistry.

CleanTech · San Leandro$2.0M Pre-Seed
polySpectra
July 2022

PolySpectra is an advanced materials company that transforms 3D printing from a prototyping aid into a production manufacturing tool.

3D Printing · BerkeleyGrant
Latimer Controls
July 2024

Latimer Controls provides an embedded control software solution for power controls.

Electrical Distribution · DenverNon-equity Assistance
AtmosZero
July 2024

AtmosZero is a modular electrified boiler that converts the heat already present in the air into decarbonized steam.

Electronics · Fort Collins$250K Grant
Smartville
July 2024

Circularity platform that streamlines electric vehicle battery assessment, integration, and reuse.

Battery · Carlsbad$10.0M Grant
Nanoionix
July 2023

Nanoionix develops engineered materials that protect the environment and enhance our quality of life.

Advanced Materials · Farmington$200K Grant

Where US Department of Energy invests

Energy9
Renewable Energy6
Energy Storage5
Clean Energy4
Manufacturing4
Solar4

About US Department of Energy's portfolio

How many companies has US Department of Energy invested in?

US Department of Energy has invested in 629 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, Energy Storage, Clean Energy, Manufacturing. The firm invests across 46 different industry categories.

What is US Department of Energy's largest investment?

Among tracked funding rounds, The Appalachian Regional Clean Hydrogen Hub received $925.0M in a Grant round. US Department of Energy's total known invested capital is $65.5B.

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

US Department of Energy's average investment size is $130.5M across its portfolio of 629 companies.

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

Recent US Department of Energy portfolio additions include EarthEn, Marathon Fusion, Power to Hydrogen, Wright Electric, Baryon. These companies were founded in 2020 or later.

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