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Energy and climate startups in the United States that raised money in the last 12 months

90 energy and climate startups based in the United States announced or filed 102 venture rounds in the last 12 months, $6.4B of it stated. 19 of the rounds came in the last 90 days. The largest: Valar Atomics (Series B · $1.2B), Base Power (Venture round · $1B) and Antora Energy (Series C · $550M). 46 of these startups are hiring now, with 785 open roles.

Venture rounds of the last 12 monthsRebuilt 9 Nov 2026
rounds in 12 months
102
startups
90
stated
$6.4B
open roles at them
785

The newest rounds

StartupRoundDateOpen roles
Circularity FuelsTrucks Venture Capital, DCVCSeed · $7M5 Nov 2026–
Sarah247Venture round · $102kSEC Form D22 Oct 2026–
OptivoltSeries A · $32M21 Oct 20262
Velera EnergyVenture round · $551kSEC Form D12 Oct 2026–
Luminous Robotics, Inc.Convertible note · $2.4MSEC Form D7 Oct 2026–
Beyond Reach LabsVenture round · $10M6 Oct 20265
Type One EnergyVenture round · $200M6 Oct 202635
Kairos PowerVenture round · $100M21 Sep 202663
Adden EnergyVenture round · $16.9MSEC Form D18 Sep 20264
SerasVenture roundregistry filing11 Sep 20266
Bluecore EnergySeed · $50M8 Sep 20265
Kanin EnergyVenture round · $18.6MSEC Form D3 Sep 2026–
Circularity FuelsVenture round · $8.8MSEC Form D1 Sep 2026–
Molten Salt SolutionsVenture round · $7M31 Aug 2026–
Teragen EnergyBEVC, Energy CapPre-seed · $6M26 Aug 20263
Emerald AISeries A · $150M25 Aug 20266
Bluecore EnergyVenture round · $19.4MSEC Form D20 Aug 20265
Horne TechnologiesConvertible note · $500kSEC Form D17 Aug 2026–
Noteworthy AIVenture round · $15MSEC Form D12 Aug 2026–
Valar AtomicsSeries B · $1.2B10 Aug 2026100
ThermolicVenture round · $500kSEC Form D7 Aug 2026–
Solar LandscapeVenture round · $150M4 Aug 202622
Base PowerVenture round · $1B3 Aug 2026189
Antares NuclearVenture round · $60MSEC Form D3 Aug 202680
Antora EnergySeries C · $550M31 Jul 202637
NuclearnVenture round · $10.5M31 Jul 20261
GrittObvious VenturesVenture round · $32M21 Jul 202618
Emerald AIVenture round · $90.2MSEC Form D17 Jul 20266
NanoramicVenture round · $9MSEC Form D15 Jul 2026–
LevelTen EnergyVenture round · $2MSEC Form D14 Jul 20262
EnergyXVenture round · $225M10 Jul 2026–
Trico PowerConvertible note · $335kSEC Form D10 Jul 2026–
Antares NuclearVenture round · $320MSEC Form D8 Jul 202680
Quaise EnergySeries B · $134M7 Jul 20266
R3 LithiumVenture round · $5.3MSEC Form D6 Jul 20265
VLTRU TechnologiesVenture round · $600kSEC Form D6 Jul 2026–
XL BatteriesVenture round · $13MSEC Form D30 Jun 20263
Aseon LabsCrane Venture Partners, Y ComSeed · $10M26 Jun 20263
Our SphereVenture round · $1.5MSEC Form D22 Jun 2026–
VerseBessemer Venture PartnersSeries B · $54M18 Jun 2026–
EquiptraVenture round · $560kSEC Form D15 Jun 2026–
Lilac SolutionsVenture round · $34.4MSEC Form D12 Jun 20261
Endurance EnergyVenture round · $54M11 Jun 202620
QneticVenture round · $55kSEC Form D10 Jun 2026–
Resolute GridCritical Energy infrastructureVenture round · $18.2MSEC Form D8 Jun 2026–
SoFab InksVenture round · $2.9MSEC Form D2 Jun 2026–
CREW CarbonSeries A · $25M20 May 20263
Ev Dot Energy LimitedVenture roundregistry filing14 May 20263
GridCARESeries A · $64M14 May 20269
SimusolarVenture round · $250kSEC Form D12 May 2026–

The largest rounds

StartupRoundDateOpen roles
Valar AtomicsSeries B · $1.2B10 Aug 2026100
Base PowerVenture round · $1B3 Aug 2026189
Antora EnergySeries C · $550M31 Jul 202637
InertiaSeries A · $450M11 Feb 20263
EnerVenueVenture round · $339.6MSEC Form D7 May 202612
Antares NuclearVenture round · $320MSEC Form D8 Jul 202680
EnergyXVenture round · $225M10 Jul 2026–
Type One EnergyVenture round · $200M6 Oct 202635
Blue EnergyVenture round · $177.5MSEC Form D17 Apr 202614
Emerald AISeries A · $150M25 Aug 20266

New rounds, the day they land

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Questions

Which energy and climate startups in the United States raised money recently?

90 energy and climate startups based in the United States announced or filed 102 venture rounds in the last 12 months, $6.4B of it stated. 19 of the rounds came in the last 90 days. The largest: Valar Atomics (Series B · $1.2B), Base Power (Venture round · $1B) and Antora Energy (Series C · $550M). 46 of these startups are hiring now, with 785 open roles.

Where do these rounds come from?

From the startups' own announcements and the press, from SEC Form D filings in the United States and from the share allotments company registers publish (a filing is marked as one in the list). One round per startup, type and week; amounts as stated, in US dollars.

Are these startups hiring?

46 of the 90 startups have open roles on their own careers boards right now, 785 roles in all; each count links to them.

Source: announcements, SEC Form D filings and company registers, 6,398 rounds in 12 monthsUpdated 9 Nov 2026MethodologyJSONCC BY-SA 4.0