Sector portfolio · Government fund · United States
National Science Foundation's Energy portfolio
National Science Foundation has backed 52 Energy startups in rounds we track, $505M between them, shown by the stage each has reached. The best-funded is Sila.
National Science Foundation's whole portfolioNational Science Foundation's profile
Solid Power
XL Batteries
Darcy Solutions
Elementium Materials
Imagen Energy
Tandem PV
Nohms Technologies
South 8 Technologies
pH Matter
ReJoule
RePurpose Energy
Skip Technology
Thiozen
Sironix Renewables
Marel Power Solutions
SkyNano
Arctura
NextGen Battery Technologies
Altect
COnovate
Valgotech
Piersica
Tibbar Plasma Technologies
Millimeter Wave Systems
+21 more
Funding by segment
- Stage not reported$274M45
- Pre-seed and seed$8.2M3
- Series A$33M2
- Series B$191M2
Where they are based
- United States48$502M
United StatesFounded
4 without a founding year on record.
Total raised
- Under $1M25
- $1M to $10M17
- $10M to $50M7
- $50M to $250M3
- $250M to $1B0
- $1B and over0
Each dot is a startup: the year it was founded across, the total it has raised up (each line is ten times the one below). Pick a segment to pick it out.
46 of 52 startups shown; the rest have no founding year or amount on record.
- 1 to 2
- 3 to 7
- 8 to 24
- 25 to 99
- 100 and more
- United States48
Startups by country, 1 country in all.
Segment by segment
Stage not reported
45 startups · $274M raised
- Solid PowerSolid Power is a developer of all-solid-state battery cells that provide enhancements over traditional lithium-ion batteries.United States$130M
- XL BatteriesXL Batteries develops a technology platform to reduce waste formation.United States$21M
- Darcy SolutionsDarcy Solutions is a renewable energy equipment manufacturer and geothermal technology company founded in 2018.United States$15M
- Elementium MaterialsElementium Materials is a technology company.United States$13M
- Imagen EnergyImagen Energy offers a compact integrated modular inverter/energy storage system.United States$12M
- Tandem PVTandem PV provides a unique opportunity for solar to reach new heights.United States$12M
- Nohms TechnologiesNohms Technologies specializes in battery solution, providing Lithium Ion Battery and NanoLyte Electrolyte Solutions.United States$11M
- South 8 TechnologiesSouth 8 sells LiGas®, a liquefied gas electrolyte for Lithium-ion batteries.United States$9.2M
Pre-seed and seed
3 startups · $8.2M raised
AirLoom EnergyAirLoom Energy offers wind energy harvesting services.United States$7.5M
Carnot CompressionCarnot maintains an isothermal compression process that functions as an optimized air and gas compression method.United States$533K
AdnovivAdnoviv specializes in the development and commercialization of intelligent sensors and systems for industrial and security applications.United States$175K
Series A
2 startups · $33M raised
Swift SolarSwift Solar is a U.S.-based solar technology company founded in 2017, emerging from collaborations with MIT, Stanford University, United States$27M
VirridyVirridy is an environmental technology company based in Boulder, Colorado.United States$5.5M
Series B
2 startups · $191M raised
Nth CycleNth Cycle is a metal processing technology company working with battery recyclers and miners to recover production-grade critical minerals.United States$137M
Coreshell TechnologiesCoreshell Technologies is a nanotechnology company that is a developer of nanolayer coating technology for rechargeable batteries.United States$54M
How this map is made. Every startup here works in Energy and has raised money in a round we track that names National Science Foundation as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.
More portfolio maps
All portfoliosRaising from investors like National Science Foundation?
Find the investors who back startups like yours, with their cheques, rounds and partners, in the app with filters, lists and exports.