United States · Series A startup

Who invested in Princeton Critical Minerals

2 rounds we have observed, with the 4 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.

CleantechEnergyOil & Gas

Raised 2 months ago

Funding summaryUpdated 26 Oct 2026

$21Mraised across 2 rounds since 2026, from 3 sources

$5.0MGrant$16MSeries A
Latest round
Series A, $16MAug 2026
Led by
SOSV
Step-upi
3.2×
Investors
4 (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.

2027
$5.0MGrant$16MSeries A
First round
Grant, $5.0M
Aug 2026
Biggest round
$16M
Series A · Aug 2026

The rounds

  1. Aug 2026
    Series A$16M1 new3 returning

    Reported by HAX and 1 otherSEC filing: $11M sold

  2. Aug 2026
    Grant$5.0M3 new

    Source recordedSEC filing: $11M sold

Founders and team

From Princeton Critical Minerals's own website: 1 founder, 10 on the team.

Sean ZhengCo-Founder, CEO
  • Angela FasnachtChief Operating Officer
  • Diane CarlinoChief of Staff
  • Aashish KhandelwalHead of Engineering
  • Alejandro GuerreroGeneral Manager, South America
  • Ashwath MehraBoard Chair
  • Duncan TurnerDirector of the Board.
  • Juan ContrerasPlant Manager, South America
  • Juanita CarvalloOperations Manager, South America
  • Hang WangTeam
  • Meng WangTeam

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

SOSVVC firm2rounds, led 1
NJEDAVC firm2rounds
ARPA-EGovernment1round

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

Quick answers about Princeton Critical Minerals

Who invested in Princeton Critical Minerals?

Princeton Critical Minerals's investors include SOSV, National Science Foundation, NJEDA and ARPA-E. SOSV led its latest round.

How much has Princeton Critical Minerals raised?

Princeton Critical Minerals has raised $21M across 2 rounds since 2026.

When did Princeton Critical Minerals last raise?

Princeton Critical Minerals's most recent round was a Series A of $16M in Aug 2026, led by SOSV.

What was Princeton Critical Minerals's biggest round?

Its most recent round, $16M in Aug 2026, is also its largest on record.

Who backed Princeton Critical Minerals first?

Princeton Critical Minerals's first round on record, in Aug 2026, was backed by National Science Foundation, SOSV and NJEDA.

What stage is Princeton Critical Minerals at?

Princeton Critical Minerals's latest named round is a Series A, in Aug 2026.

Where is Princeton Critical Minerals based?

Princeton Critical Minerals is based in the United States.

Who led Princeton Critical Minerals's rounds?

SOSV led the Series A in 2026.

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