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US Department of Energy — Portfolio

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

629
Companies
$50.0B
Total invested
$94.3M
Avg. check
50
Industries
Energy 9Renewable Energy 8Advanced Materials 5Electronics 5Manufacturing 4Clean Energy 4+44 more
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Portfolio companies

Showing 124 of 629
NanoSieve
September 2025

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

CleanTech · Miami Beach$100K Grant
6K
September 2024

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

Biotechnology · North Andover$82.0M Series E
Blue Biofuels
September 2024

Blue Biofuels is a technology company that specializes in renewable energy, biofuels, and new technologies sectors

Biofuel · Palm Beach Gardens$1.1M Grant
Maine Ocean Farms
September 2024

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

Aquaculture · Freeport$1.0M Grant
Accelerate Wind
September 2025

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

Energy · St LouisSeed
CorePower Magnetics
September 2024

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

Advanced Materials · Pittsburgh$1.2M Grant
Zap Energy
September 2024

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

Clean Energy · Everett$130.0M Series D
Sunwealth Power
September 2025

Sunwealth Power is a renewable energy investment firm that manages and finances solar and storage installations.

Clean Energy · Cambridge$20.0M Debt Financing
Sunnova
September 2023

Sunnova is an Energy as a Service (EaaS) company that offers residential solar power and energy storage solutions.

Clean Energy · Houston$400.0M Post-IPO Debt
Manta Biofuel
September 2023

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

Agriculture · Owings Mills$531K Equity Crowdfunding
Orbital Composites
September 2023

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

3D Printing · Campbell$2.0M Grant
Blue Whale Materials
September 2024

Blue Whale Materials is an li-ion recycling solution.

Recycling · Washington$55.0M Grant
NanoGraf Corporation
September 2024

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

Advanced Materials · Chicago$60.0M Grant
South32 Hermosa
September 2024

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

Mining · Patagonia$166.0M Grant
Sylvatex, Inc.
September 2022

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

Advanced Materials · San Francisco$8.4M Series A
Operant Networks
September 2022

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

Cyber Security · Rohnert Park$3.8M Seed
Harvest Thermal
September 2024

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

Electronics · Berkeley$2.0M Grant
BIOS
September 2024

BIOS, a company bringing you better light through science.

Computer · Melbourne$1.0M Grant
LUXTECH
September 2024

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

Electronics · Philadelphia$1.0M Grant
Stepwise
September 2024

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

Electrical Distribution · Buffalo$1.4M Grant
NETenergy
September 2024

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

Advanced Materials · Chicago$2.0M Grant
Evari
September 2024

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

CleanTech · Peterborough$1.7M Grant
Barrio Eléctrico
September 2024

Barrio Eléctrico offers residential solar-plus-storage leases, relying on community engagement to support the systems.

Renewable Energy · San Juan$21.0M Grant
Effecterra
September 2024

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

Consulting · Reno$1.2M Grant

Where US Department of Energy invests

Energy9
Renewable Energy8
Advanced Materials5
Electronics5
Manufacturing4
Clean Energy4

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, Advanced Materials, Electronics, Manufacturing. The firm invests across 50 different industry categories.

What is US Department of Energy's largest investment?

Among tracked funding rounds, Sunnova received $400.0M in a Post-IPO Debt round. US Department of Energy's total known invested capital is $50.0B.

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

US Department of Energy's average investment size is $94.3M across its portfolio of 629 companies.

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

Recent US Department of Energy portfolio additions include NanoSieve, 6K, Blue Biofuels, Maine Ocean Farms, Accelerate Wind. These companies were founded in 2020 or later.

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