Sector portfolio · Government fund · United States

US Department of Energy's Energy portfolio

US Department of Energy has backed 69 Energy startups in rounds we track, $14B between them, shown by the stage each has reached. The best-funded is Starplus Energy.

69startups backed
3stages
$14Braised between them
Stage not reportedbiggest stage

US Department of Energy's whole portfolioUS Department of Energy's profile

Stage not reported

60

+36 more

Series B

6

Series A

3

Segment by segment

Stage not reported

60 startups · $13B raised

  1. StarPlus EnergyStarPlus Energy Revolutionizes EV Battery Manufacturing.United States$7.5B
  2. Wabash Valley ResourcesWabash Valley Resources develops innovative and effective solutions to manufacture, store, and deliver hydrogen energy worldwide.United States$1.5B
  3. Technip EnergiesTechnip Energies is a engineering & technology company for the energy transition.France$1.4B
  4. Howard Energy PartnersHoward Energy Partners offers an integrated midstream platform that includes infrastructure and services from wellhead to market.United States$750M
  5. California ResourcesCalifornia Resources is an oil and natural gas company that focuses on energy transition in the sector.United States$550M
  6. NostromoNostromo Energy designed a water-based energy storage system that is challenging the current BTM energy storage landscape.-$306M
  7. HeliogenHeliogen is a renewable energy technology company unlocking the power of sunlight to replace fossil fuels.United States$165M
  8. Solid PowerSolid Power is a developer of all-solid-state battery cells that provide enhancements over traditional lithium-ion batteries.United States$130M

Series B

6 startups · $551M raised

  1. Nth CycleNth Cycle is a metal processing technology company working with battery recyclers and miners to recover production-grade critical minerals.United States$137M
  2. Thea EnergyThea Energy is a fusion energy startup focused on commercializing scalable and zero-emission power through advanced stellarator technology.United States$120M
  3. KolomaKoloma is a geologic hydrogen company that leverages technology and data to identify and commercialize geologic hydrogen resources.United States$111M
  4. Mitra ChemMitra Chem is an AI-native manufacturer of lithium-ion battery materials, founded in 2021 and headquartered in Mountain View, California.United States$91M
  5. Element EnergyElement Energy is a energy consulting firm that offers rooftop solar system services.United States$73M
  6. InnowattsInnowatts is now a part of GridX.United States$18M

Series A

3 startups · $87M raised

  1. RedoxBloxRedoxBlox is a post-Series A startup based in San Diego, California, focused on transforming the energy sector with its innovativeUnited States$40M
  2. Swift SolarSwift Solar is a U.S.-based solar technology company founded in 2017, emerging from collaborations with MIT, Stanford University, United States$27M
  3. EvolOHEVOLOH is a cleantech company based in Santa Clara, California, founded in April 2020.United States$20M

How this map is made. Every startup here works in Energy and has raised money in a round we track that names US Department of Energy as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

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Sector portfolioUS Department of Energy's Cleantech portfolio43 startups · $3.0BSector portfolioUS Department of Energy's Chemicals & Materials portfolio32 startups · $1.0BSector portfolioUS Department of Energy's Manufacturing portfolio17 startups · $2.6BSector portfolioUS Department of Energy's Big Data & Analytics portfolio16 startups · $19MSector portfolioUS Department of Energy's AI portfolio13 startups · $457MSector portfolioUS Department of Energy's Biotech portfolio13 startups · $109M

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