# US Department of Energy's Energy Investments: 69 Startups in Its Portfolio (2026) > The 69 Energy startups US Department of Energy has backed, by stage: $14B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/u-s-department-of-energy-energy-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Stage not reported 60 - [StarPlus Energy](https://millionrounds.com/company/starplus-energy) - [Wabash Valley Resources](https://millionrounds.com/company/wabash-valley-resources) - [Technip Energies](https://millionrounds.com/company/technip-energies) - [Howard Energy Partners](https://millionrounds.com/company/howard-energy-partners) - [California Resources](https://millionrounds.com/company/california-resources) - [Nostromo](https://millionrounds.com/company/nostromo) - [Heliogen](https://millionrounds.com/company/heliogen) - [Solid Power](https://millionrounds.com/company/solid-power) - [Anovion Battery Materials](https://millionrounds.com/company/anovion-battery-materials) - [American Battery Technology Company](https://millionrounds.com/company/american-battery-technology-company) - [Xcimer Energy](https://millionrounds.com/company/xcimer-energy) - [Rye Development](https://millionrounds.com/company/rye-development) - [Hydrostor](https://millionrounds.com/company/hydrostor) - [Solidion Technology](https://millionrounds.com/company/solidion-technology) - [Anthro Energy](https://millionrounds.com/company/anthro-energy) - [Realta Fusion](https://millionrounds.com/company/realta-fusion) - [Foro Energy](https://millionrounds.com/company/foro-energy) - [Imagen Energy](https://millionrounds.com/company/imagen-energy) - [FESCO Energy](https://millionrounds.com/company/fesco-energy) - [Tandem PV](https://millionrounds.com/company/tandem-pv) - [Quino Energy](https://millionrounds.com/company/quino-energy) - [Inlyte Energy](https://millionrounds.com/company/inlyte-energy) - [Li-Cycle](https://millionrounds.com/company/li-cycle) - [pH Matter](https://millionrounds.com/company/ph-matter) +36 more ## Series B 6 - [Nth Cycle](https://millionrounds.com/company/nth-cycle) - [Thea Energy](https://millionrounds.com/company/thea-energy) - [Koloma](https://millionrounds.com/company/koloma) - [Mitra Chem](https://millionrounds.com/company/mitra-chem) - [Element Energy](https://millionrounds.com/company/element-energy) - [Innowatts](https://millionrounds.com/company/innowatts) ## Series A 3 - [RedoxBlox](https://millionrounds.com/company/redoxblox) - [Swift Solar](https://millionrounds.com/company/swift-solar) - [EvolOH](https://millionrounds.com/company/evoloh) ## Segment by segment ### Stage not reported 60 startups · $13B raised - [**StarPlus Energy**](https://millionrounds.com/company/starplus-energy) StarPlus Energy Revolutionizes EV Battery Manufacturing. United States $7.5B - [**Wabash Valley Resources**](https://millionrounds.com/company/wabash-valley-resources) Wabash Valley Resources develops innovative and effective solutions to manufacture, store, and deliver hydrogen energy worldwide. United States $1.5B - [**Technip Energies**](https://millionrounds.com/company/technip-energies) Technip Energies is a engineering & technology company for the energy transition. France $1.4B - [**Howard Energy Partners**](https://millionrounds.com/company/howard-energy-partners) Howard Energy Partners offers an integrated midstream platform that includes infrastructure and services from wellhead to market. United States $750M - [**California Resources**](https://millionrounds.com/company/california-resources) California Resources is an oil and natural gas company that focuses on energy transition in the sector. United States $550M - [**Nostromo**](https://millionrounds.com/company/nostromo) Nostromo Energy designed a water-based energy storage system that is challenging the current BTM energy storage landscape. - $306M - [**Heliogen**](https://millionrounds.com/company/heliogen) Heliogen is a renewable energy technology company unlocking the power of sunlight to replace fossil fuels. United States $165M - [**Solid Power**](https://millionrounds.com/company/solid-power) Solid 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 - [**Nth Cycle**](https://millionrounds.com/company/nth-cycle) Nth Cycle is a metal processing technology company working with battery recyclers and miners to recover production-grade critical minerals. United States $137M - [**Thea Energy**](https://millionrounds.com/company/thea-energy) Thea Energy is a fusion energy startup focused on commercializing scalable and zero-emission power through advanced stellarator technology. United States $120M - [**Koloma**](https://millionrounds.com/company/koloma) Koloma is a geologic hydrogen company that leverages technology and data to identify and commercialize geologic hydrogen resources. United States $111M - [**Mitra Chem**](https://millionrounds.com/company/mitra-chem) Mitra Chem is an AI-native manufacturer of lithium-ion battery materials, founded in 2021 and headquartered in Mountain View, California. United States $91M - [**Element Energy**](https://millionrounds.com/company/element-energy) Element Energy is a energy consulting firm that offers rooftop solar system services. United States $73M - [**Innowatts**](https://millionrounds.com/company/innowatts) Innowatts is now a part of GridX. United States $18M ### Series A 3 startups · $87M raised - [**RedoxBlox**](https://millionrounds.com/company/redoxblox) RedoxBlox is a post-Series A startup based in San Diego, California, focused on transforming the energy sector with its innovative United States $40M - [**Swift Solar**](https://millionrounds.com/company/swift-solar) Swift Solar is a U.S.-based solar technology company founded in 2017, emerging from collaborations with MIT, Stanford University, United States $27M - [**EvolOH**](https://millionrounds.com/company/evoloh) EVOLOH 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. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **US Department of Energy's Cleantech portfolio** 43 startups · $3.0B](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-cleantech-portfolio)[Sector portfolio **US Department of Energy's Chemicals & Materials portfolio** 32 startups · $1.0B](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-chemicals-materials-portfolio)[Sector portfolio **US Department of Energy's Manufacturing portfolio** 17 startups · $2.6B](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-manufacturing-portfolio)[Sector portfolio **US Department of Energy's Big Data & Analytics portfolio** 16 startups · $19M](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-big-data-analytics-portfolio)[Sector portfolio **US Department of Energy's AI portfolio** 13 startups · $457M](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-ai-portfolio)[Sector portfolio **US Department of Energy's Biotech portfolio** 13 startups · $109M](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-biotech-portfolio) ## Raising from investors like US Department of Energy? 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