# Top 50 Energy Startups in the United States by Funding (2026)

> The 50 best-funded energy startups in the United States, ranked by total funding raised: $110B combined.

Source: https://millionrounds.com/top-lists/energy-startups-united-states (Millionrounds; every figure on the page links to its filing or article)

- 1 [**Crusoe Energy Systems** Crusoe Energy Systems provides solutions for the energy industry helping them to reduce routine flaring of natural gas.](https://millionrounds.com/company/crusoe-energy-systems) Crusoe Energy Systems provides solutions for the energy industry helping them to reduce routine flaring of natural gas. *Founded* 2018 Arvada, United States **$12B** last round May 2025
- 2 [**Crusoe** Crusoe is an energy-first AI infrastructure company that develops and operates large-scale, AI-optimized data centers powered by clean energy sources.](https://millionrounds.com/company/crusoe) Crusoe is an energy-first AI infrastructure company that develops and operates large-scale, AI-optimized data centers powered by clean energy sources. *Founded* 2018 Denver, United States **$9.9B** last round Sept 2026
- 3 [**StarPlus Energy** StarPlus Energy Revolutionizes EV Battery Manufacturing.](https://millionrounds.com/company/starplus-energy) StarPlus Energy Revolutionizes EV Battery Manufacturing. *Founded* 2022 Kokomo, United States **$7.5B** last round Dec 2024
- 4 [**VoltaGrid** VoltaGrid is ushering in a new era of power generation and permanently changing the landscape of mobile power.](https://millionrounds.com/company/voltagrid) VoltaGrid is ushering in a new era of power generation and permanently changing the landscape of mobile power. *Founded* 2020 Bellaire, United States **$5.8B** last round May 2026
- 5 [**MidOcean Energy** MidOcean Energy is an LNG company formed by EIG to build a diversified, resilient, cost and carbon competitive LNG portfolio.](https://millionrounds.com/company/midocean-energy) MidOcean Energy is an LNG company formed by EIG to build a diversified, resilient, cost and carbon competitive LNG portfolio. *Founded* - Washington, United States **$5.4B** last round Oct 2026
- 6 [**Williams** Find out how Williams is providing infrastructure that safely delivers natural gas products to fuel a clean energy economy.](https://millionrounds.com/company/williams) Find out how Williams is providing infrastructure that safely delivers natural gas products to fuel a clean energy economy. *Founded* - Palmetto, United States **$5.3B** last round Aug 2026
- 7 [**Vistra** Vistra is a retail electricity and power generation company that owns and operates power plants and supplies electricity to customers.](https://millionrounds.com/company/vistra) Vistra is a retail electricity and power generation company that owns and operates power plants and supplies electricity to customers. *Founded* 2016 Irving, United States **$4.0B** last round Apr 2026
- 8 [**Cypress Creek Renewables** Cypress Creek Renewables is a national provider of local solar.](https://millionrounds.com/company/cypress-creek-renewables) Cypress Creek Renewables is a national provider of local solar. *Founded* 2014 Durham, United States **$3.5B** last round Jun 2026
- 9 [**NextDecade** NextDecade is an LNG development company focusing on LNG export projects and associated pipelines.](https://millionrounds.com/company/nextdecade) NextDecade is an LNG development company focusing on LNG export projects and associated pipelines. *Founded* 2014 Houston, United States **$3.5B** last round Jun 2026
- 10 [**Clenera** Clenera is a privately-held renewable energy company acquires, develops, builds and manages utility-scale solar farms and energy storage.](https://millionrounds.com/company/clenera) Clenera is a privately-held renewable energy company acquires, develops, builds and manages utility-scale solar farms and energy storage. *Founded* 2013 Boise, United States **$2.9B** last round Jun 2026
- 11 [**New Fortress Energy** New Fortress Energy is an energy infrastructure company.](https://millionrounds.com/company/new-fortress-energy) New Fortress Energy is an energy infrastructure company. *Founded* 2014 New York, United States **$2.7B** last round Oct 2024
- 12 [**EVgo** EVgo provides fast charging networks for private and public electric vehicles.](https://millionrounds.com/company/evgo) EVgo provides fast charging networks for private and public electric vehicles. *Founded* 2010 Los Angeles, United States **$2.5B** last round Jul 2025
- 13 [**Ultium Cells** Ultium Cells uses technologically advanced methods in the industry to produce the battery cells.](https://millionrounds.com/company/ultium-cells) Ultium Cells uses technologically advanced methods in the industry to produce the battery cells. *Founded* 2020 Warren, United States **$2.5B** last round Jul 2022
- 14 [**Base Power**](https://millionrounds.com/company/base-power) *Founded* - United States **$2.2B** last round Aug 2026
- 15 [**VAST Data** VAST Data offers a unified data platform that integrates storage, database, and compute capabilities into a single software platform.](https://millionrounds.com/company/vast-data) VAST Data offers a unified data platform that integrates storage, database, and compute capabilities into a single software platform. *Founded* 2016 New York, United States **$2.0B** last round Apr 2026
- 16 [**Form Energy** Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration.](https://millionrounds.com/company/form-energy) Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration. *Founded* 2017 Somerville, United States **$2.0B** last round Sept 2026
- 17 [**Commonwealth Fusion Systems**](https://millionrounds.com/company/commonwealth-fusion-systems) *Founded* - United States **$1.9B** last round Jul 2026
- 18 [**Joulent**](https://millionrounds.com/company/joulent) *Founded* - United States **$1.8B** last round Jul 2026
- 19 [**SILA**](https://millionrounds.com/company/sila) *Founded* - United States **$1.7B** last round Aug 2026
- 20 [**Valar Atomics** Valar Atomics is a U.S.-based advanced nuclear energy startup founded in 2023 and headquartered in El Segundo, California.](https://millionrounds.com/company/valar-atomics) Valar Atomics is a U.S.-based advanced nuclear energy startup founded in 2023 and headquartered in El Segundo, California. *Founded* 2023 El Segundo, United States **$1.6B** last round Aug 2026
- 21 [**X-energy** X-energy is delivering the next generation of carbon-free energy by reinventing nuclear power.](https://millionrounds.com/company/x-energy) X-energy is delivering the next generation of carbon-free energy by reinventing nuclear power. *Founded* 2009 Rockville, United States **$1.5B** last round May 2026
- 22 [**Wabash Valley Resources** Wabash Valley Resources develops innovative and effective solutions to manufacture, store, and deliver hydrogen energy worldwide.](https://millionrounds.com/company/wabash-valley-resources) Wabash Valley Resources develops innovative and effective solutions to manufacture, store, and deliver hydrogen energy worldwide. *Founded* 2016 West Terre Haute, United States **$1.5B** last round Oct 2025
- 23 [**MPLX** MPLX owns, leases or has ownership interest in approximately 2,900 miles of pipeline across nine states.](https://millionrounds.com/company/mplx) MPLX owns, leases or has ownership interest in approximately 2,900 miles of pipeline across nine states. *Founded* 2012 Findlay, United States **$1.5B** last round Feb 2026
- 24 [**Dimension Energy**](https://millionrounds.com/company/dimension-energy) *Founded* - United States **$1.5B** last round Aug 2026
- 25 [**WaterBridge Resources** A midstream development company focused on developing, acquiring and operating flowback and produced water infrastructure](https://millionrounds.com/company/waterbridge-resources) A midstream development company focused on developing, acquiring and operating flowback and produced water infrastructure *Founded* 2015 Houston, United States **$1.4B** last round Sept 2025
- 26 [**Sunraycer** Sunraycer offers clean energy solutions and capital for renewable energy projects.](https://millionrounds.com/company/sunraycer) Sunraycer offers clean energy solutions and capital for renewable energy projects. *Founded* - Annapolis, United States **$1.4B** last round May 2026
- 27 [**Generate Capital** Generate Capital is an investment and operating platform for sustainable infrastructure.](https://millionrounds.com/company/generate-capital) Generate Capital is an investment and operating platform for sustainable infrastructure. *Founded* 2014 San Francisco, United States **$1.3B** last round Sept 2026
- 28 [**Redwood Materials** Redwood Materials is an American company based in Carson City, Nevada, focused on creating a sustainable supply chain for lithium-ion batteries.](https://millionrounds.com/company/redwood-materials) Redwood Materials is an American company based in Carson City, Nevada, focused on creating a sustainable supply chain for lithium-ion batteries. *Founded* 2017 Carson City, United States **$1.2B** last round Jan 2026
- 29 [**EnergyRe** EnergyRe is at the center of the clean energy future.](https://millionrounds.com/company/energyre) EnergyRe is at the center of the clean energy future. *Founded* 2020 New York, United States **$1.2B** last round Oct 2026
- 30 [**Electra** Electra is decarbonizing ironmaking for green steel production using intermittent renewable energy and low-grade iron ores.](https://millionrounds.com/company/electra) Electra is decarbonizing ironmaking for green steel production using intermittent renewable energy and low-grade iron ores. *Founded* 2020 Boulder, United States **$1.1B** last round Mar 2026
- 31 [**Fervo Energy** Fervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems.](https://millionrounds.com/company/fervo-energy) Fervo Energy develops clean energy technology to generate carbon-free energy from geothermal systems. *Founded* 2017 Houston, United States **$1.1B** last round Sept 2026
- 32 [**SunEdison** SunEdison is the largest global renewable energy development company.](https://millionrounds.com/company/sunedison) SunEdison is the largest global renewable energy development company. *Founded* 1959 United States **$1.1B** last round Jun 2015
- 33 [**Solar Landscape** Solar Landscape is an installer and operator of solar energy systems.](https://millionrounds.com/company/solar-landscape) Solar Landscape is an installer and operator of solar energy systems. *Founded* 2012 Asbury Park, United States **$900M** last round Jun 2026
- 34 [**Pacific Fusion** Pacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes.](https://millionrounds.com/company/pacific-fusion) Pacific Fusion was founded in 2023 to deliver commercial fusion energy to power cities, businesses and homes. *Founded* 1997 Fremont, United States **$900M** last round Nov 2024
- 35 [**MACH Resources** Mach Resources is an independent oil and natural gas producer & fast-paced and growth-oriented company.](https://millionrounds.com/company/mach-resources) Mach Resources is an independent oil and natural gas producer & fast-paced and growth-oriented company. *Founded* 2017 Oklahoma City, United States **$868M** last round Apr 2026
- 36 [**Tallgrass Energy** Tallgrass Energy is a family of companies formed to own, operate, acquire and develop midstream energy assets in North America.](https://millionrounds.com/company/tallgrass-energy) Tallgrass Energy is a family of companies formed to own, operate, acquire and develop midstream energy assets in North America. *Founded* 2012 Leawood, United States **$843M** last round Aug 2024
- 37 [**Blue Energy** Blue Energy is a nuclear energy company that designs and manufactures modular nuclear power plants.](https://millionrounds.com/company/blue-energy) Blue Energy is a nuclear energy company that designs and manufactures modular nuclear power plants. *Founded* - Plainfield, United States **$805M** last round Jul 2026
- 38 [**Avantus** Avantus develops large-scale solar and solar-plus-storage projects to drive the adoption of zero-emission energy.](https://millionrounds.com/company/avantus) Avantus develops large-scale solar and solar-plus-storage projects to drive the adoption of zero-emission energy. *Founded* 2019 El Dorado Hills, United States **$800M** last round Sept 2026
- 39 [**Madison Energy Infrastructure** Madison Energy Infrastructure is a platform that creates, owns, and manages renewable energy projects.](https://millionrounds.com/company/madison-energy-infrastructure) Madison Energy Infrastructure is a platform that creates, owns, and manages renewable energy projects. *Founded* 2019 New York, United States **$800M** last round Sept 2025
- 40 [**Panamint Capital** Panamint Capital is an energy investment firm that focuses on developing electric transmission and optimizing power generation.](https://millionrounds.com/company/panamint-capital) Panamint Capital is an energy investment firm that focuses on developing electric transmission and optimizing power generation. *Founded* 2019 United States **$769M** last round Nov 2026
- 41 [**Primergy Solar** Primergy Solar is a developer, owner and operator focused on both distributed and utility scale solar PV and battery storage projects.](https://millionrounds.com/company/primergy-solar) Primergy Solar is a developer, owner and operator focused on both distributed and utility scale solar PV and battery storage projects. *Founded* 2019 Oakland, United States **$760M** last round Mar 2026
- 42 [**Maxwell Power** Maxwell Power is a renewable energy company that installs solar panels.](https://millionrounds.com/company/maxwell-power) Maxwell Power is a renewable energy company that installs solar panels. *Founded* - San Diego, United States **$750M** last round Jun 2026
- 43 [**Howard Energy Partners** Howard Energy Partners offers an integrated midstream platform that includes infrastructure and services from wellhead to market.](https://millionrounds.com/company/howard-energy-partners) Howard Energy Partners offers an integrated midstream platform that includes infrastructure and services from wellhead to market. *Founded* 2011 San Antonio, United States **$750M** last round Aug 2025
- 44 [**Alpha Generation** Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable.](https://millionrounds.com/company/alpha-generation) Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable. *Founded* 2016 Houston, United States **$750M** last round Oct 2025
- 45 [**Moda Midstream** Moda Midstream provides terminal, storage, and distribution solutions to bulk liquid producers.](https://millionrounds.com/company/moda-midstream) Moda Midstream provides terminal, storage, and distribution solutions to bulk liquid producers. *Founded* 2015 United States **$750M** last round Mar 2015
- 46 [**X-Energy Reactor Company**](https://millionrounds.com/company/x-energy-reactor-company) *Founded* 2018 United States **$700M** last round Nov 2025
- 47 [**Lydian Energy** Lydian Energy is a independent power producer specializing in the development, construction, and operation of utility-scale solar.](https://millionrounds.com/company/lydian-energy) Lydian Energy is a independent power producer specializing in the development, construction, and operation of utility-scale solar. *Founded* - Washington, United States **$689M** last round Feb 2026
- 48 [**MN8 Energy** MN8 Energy is an energy company that provides renewable energy and services to enterprise customers.](https://millionrounds.com/company/mn8-energy) MN8 Energy is an energy company that provides renewable energy and services to enterprise customers. *Founded* 2022 New York, United States **$663M** last round May 2026
- 49 [**TerraPower** TerraPower is a nuclear energy technology firm that focuses on developing a sustainable and economic nuclear energy system.](https://millionrounds.com/company/terrapower) TerraPower is a nuclear energy technology firm that focuses on developing a sustainable and economic nuclear energy system. *Founded* 2006 United States **$650M** last round Jun 2025
- 50 [**Group14 Technologies** Group14 Technologies is a leading manufacturer of advanced silicon battery materials, based in Woodinville, Washington.](https://millionrounds.com/company/group14-technologies) Group14 Technologies is a leading manufacturer of advanced silicon battery materials, based in Woodinville, Washington. *Founded* 2015 Woodinville, United States **$632M** last round Oct 2026

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: Millionrounds

Companies whose funding rounds we classed as this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

## Who backed them?

Open any company for its rounds and investors, or search the investors who back energy startups in the United States in the app, with filters, lists and exports.

[Find their investors](https://millionrounds.com/login?join=1&next=/app/investors)[All top lists](https://millionrounds.com/top-lists)

## More energy lists

[See all](https://millionrounds.com/top-lists?t=Energy)

[*CE* *C* *SE* **Energy startups worldwide** 1,800 companies · $129B](https://millionrounds.com/top-lists/energy-startups)[*N* *V* *S* **Energy startups in Europe** 607 companies · $39B](https://millionrounds.com/top-lists/energy-startups-europe)[*C* *ME* *W* **Energy startups that raised in 2026** 429 companies · $73B in 2026](https://millionrounds.com/top-lists/energy-startups-raised-2026)[*S* *RS* *C* **Energy startups in the United Kingdom** 206 companies · $15B](https://millionrounds.com/top-lists/energy-startups-united-kingdom)[*C* *ME* *W* **Energy startups in the United States that raised in 2026** 194 companies · $63B in 2026](https://millionrounds.com/top-lists/energy-startups-united-states-raised-2026)[*AE* *TE* *RS* **Energy startups founded in 2021** 111 companies · $8.5B](https://millionrounds.com/top-lists/energy-startups-founded-2021)[*V* *UC* *E* **Energy startups founded in 2020** 105 companies · $15B](https://millionrounds.com/top-lists/energy-startups-founded-2020)[*AP* *CP* *CM* **Energy startups in Canada** 103 companies · $6.1B](https://millionrounds.com/top-lists/energy-startups-canada)

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