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.

United States · Series A startup
Funding summaryUpdated 26 Oct 2026
$21Mraised across 2 rounds since 2026, from 3 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by HAX and 1 otherSEC filing: $11M sold
From Princeton Critical Minerals's own website: 1 founder, 10 on the team.
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Princeton Critical Minerals's investors include SOSV, National Science Foundation, NJEDA and ARPA-E. SOSV led its latest round.
Princeton Critical Minerals has raised $21M across 2 rounds since 2026.
Princeton Critical Minerals's most recent round was a Series A of $16M in Aug 2026, led by SOSV.
Its most recent round, $16M in Aug 2026, is also its largest on record.
Princeton Critical Minerals's first round on record, in Aug 2026, was backed by National Science Foundation, SOSV and NJEDA.
Princeton Critical Minerals's latest named round is a Series A, in Aug 2026.
Princeton Critical Minerals is based in the United States.
SOSV led the Series A in 2026.
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