AIDefence & spaceRobotics & hardwareHealthtech & bioMobility & logisticsFintechData & analyticsClimate & energyDeveloper toolsCybersecurityLegal & complianceCommerce & marketingEnterprise softwareConsumer & mediaHR & workProptechEdtech
Climate & energy funding
Every Climate & energy startup round we tracked in 2026, newest first: 26 rounds worth $3.57bn.
Raised$3.57bn
Rounds26
Median round$27.5m
$1bn+ valuations1
Image: Valar AtomicsBiggest Climate & energy round · HawthorneValar Atomics raises $1bn Series B led by Sequoia to build reactors at scale
All 26 rounds
Vensum PowerSeries A · Climate & energy · Espoo · 6 Nov$10.1mFluoRokSeries A · Climate & energy · Oxford · 5 Nov$30mGreen VoltisSeries A · Climate & energy · Stockholm · 5 Nov$15.5maltMSeries A · Climate & energy · Bengaluru · 5 Nov$10.3mTwo Point O CapitalSeries A · Climate & energy · Mumbai · 2 Nov$10mNoakSeed · Climate & energy · Genk · 30 Oct$5.6mEpochSeed · Climate & energy · London · 26 Oct$4.3mPeak EnergySeries B · Climate & energy · Burlingame · 21 Oct$108mElax ÉnergieGrowth · Climate & energy · Paris · 20 Oct$33.7mVECKTASeries A · Climate & energy · San Diego · 20 Oct$11mKinishSeries A · Climate & energy · Tokyo · 20 Oct$3.1mGanigaSeed · Climate & energy · Cascina · 20 Oct$1.7mRabot EnergySeries B · Climate & energy · Hamburg · 15 Oct$56mScimplifySeries C · Climate & energy · Bengaluru · 14 Oct$25mGiraffe BioSeed · Climate & energy · Buenos Aires · 13 Oct$6.4mVoltusSeries D+ · Climate & energy · San Francisco · 8 Oct$225mVEIRSeries C · Climate & energy · Woburn · 8 Oct$110mType One EnergySeries B · Climate & energy · Knoxville · 6 Oct$200mAmberSeries D+ · Climate & energy · Melbourne · 21 Sep$55.9mMazama EnergySeries B · Climate & energy · Frisco · 17 Sep$135mNomosSeries A · Climate & energy · Berlin · 15 Sep$23.1mValar AtomicsSeries B · Climate & energy · Hawthorne · 3 Aug$1bnAntora EnergySeries C · Climate & energy · San Jose · 30 Jul$550mProxima FusionSeries B · Climate & energy · Munich · 7 Jul$468mInertiaSeries A · Climate & energy · Livermore · 11 Feb$450mHadesSeed · Climate & energy · Munich · 11 Feb$17.8m
Compare sectors
AI87 rounds$241.18bnDefence & space38 rounds$16.97bnRobotics & hardware49 rounds$8.8bnHealthtech & bio60 rounds$8.23bnMobility & logistics16 rounds$7.81bnFintech57 rounds$6.06bnData & analytics4 rounds$5.14bnClimate & energy26 rounds$3.57bnDeveloper tools13 rounds$3.41bnCybersecurity28 rounds$3.07bnLegal & compliance7 rounds$1.14bnCommerce & marketing18 rounds$966mEnterprise software13 rounds$771mConsumer & media11 rounds$552mHR & work8 rounds$432mProptech8 rounds$339mEdtech5 rounds$182m