United States · Funded startup

Who invested in Fervo Energy

4 rounds we have observed, with the 28 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

CleantechClimate TechEnergy

Raised 2 months ago

Funding summaryUpdated 5 Nov 2026

$1.1Braised across 4 rounds since 2025, from 5 sources

$206MRound$462MSeries E$421MDebt$20MGrant
Latest round
Grant, $20MSept 2026
Biggest round
$462MSeries E · Dec 2025
Investors
28 (1 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026
$206MRound$462MSeries E$421MDebt$20MGrant
First round
Round, $206M
Jun 2025
Biggest round
$462M
Series E · Dec 2025
Usual gap between rounds
5 months
the median of 3

The rounds

  1. Sept 2026
  2. Mar 2026
    Debt$421M

    No investor was named in the report.

    Reported by VentureburnSEC filing: $452M sold, first sale Dec 2025

  3. Dec 2025
  4. Jun 2025

Funding filed with regulators

Fervo Energy filed 5 raises, $916M in all. Filings say how much was sold and to how many investors; they never name the investors.

  1. Dec 2025$452M39 investorsof $462M offeredSEC Form D
  2. Dec 2024$135M14 investorsSEC Form D
  3. Feb 2024$164M17 investorsequityof $244M offeredSEC Form D
  4. Aug 2022$138M24 investorsequitySEC Form D
  5. Mar 2021$26M11 investorsequityof $28M offeredSEC Form D

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

B CapitalVC firm2rounds, led 1
DCVCVC firm2rounds
Breakthrough EnergyVC firm2rounds
Congruent VenturesVC firm2rounds
MercuriaCorporate VC2rounds
GoogleAccelerator1round
Bank of AmericaCompany1round
CPP InvestmentsGrowth equity1round
GalvanizeVC firm1round
Capricorn InvestmentFamily office1round
Mitsui & CoCorporate VC1round
AllianceBernsteinVC firm1round
Liberty Mutual InvestmentsGrowth equity1round
CalSTRSGovernment1round
Sabanci Climate VenturesGrowth equity1round
JB StraubelVC firm1round
Carbon EquityWealth manager1round
Centaurus Capital LPFamily office1round
EchelonVC firm1round
Atacama VenturesFund of funds1round
Breakthrough Energy CatalystInvestment firm1round
CF GroupVC firm1round
Devon EnergyGrowth equity1round
Kris SinghAngel1round
Mitsubishi Heavy IndustriesCorporate VC1round
X-Caliber Rural CapitalInvestment firm1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 4 firms list Fervo Energy as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

Prelude VenturesVC firmPer its own site
WovenEarth VenturesFund of fundsPer its own site
Baruch Future VenturesVC firmPer its own site
MTM Venture PartnersVC firmPer its own site

Quick answers about Fervo Energy

Who invested in Fervo Energy?

Fervo Energy's investors include B Capital, DCVC, Breakthrough Energy, Congruent Ventures and Mercuria, and 23 more on record.

How much has Fervo Energy raised?

Fervo Energy has raised $1.1B across 4 rounds since 2025.

When did Fervo Energy last raise?

Fervo Energy's most recent round was a Grant of $20M in Sept 2026.

What was Fervo Energy's biggest round?

Fervo Energy's largest round on record is $462M (Series E), in Dec 2025, led by B Capital.

Who backed Fervo Energy first?

Fervo Energy's first round on record, in Jun 2025, was backed by Mercuria, Breakthrough Energy Catalyst and X-Caliber Rural Capital.

What stage is Fervo Energy at?

Fervo Energy's latest named round is a Grant, in Sept 2026.

Where is Fervo Energy based?

Fervo Energy is based in the United States.

Who led Fervo Energy's rounds?

B Capital led the Series E in 2025.

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