# Princeton Critical Minerals funding: rounds and investors > Princeton Critical Minerals has raised $21M across 2 rounds since 2026. Investors include SOSV, National Science Foundation and NJEDA. Source: https://millionrounds.com/company/princeton-critical-minerals (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # 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. Cleantech Energy Oil & Gas Raised 2 months ago Funding summary Updated 26 Oct 2026 **$21M** raised across 2 rounds since 2026, from 3 sources **$5.0M** Grant **$16M** Series A - **Latest round:** Series A, $16M Aug 2026 - **Led by:** SOSV - **Step-up i:** 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 **$5.0M** Grant **$16M** Series A - **First round:** Grant, $5.0M - **Biggest round:** $16M ## The rounds - **Aug 2026** Series A **$16M** *1 new* *3 returning* [SOSV](https://millionrounds.com/fund/sosv) Lead [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [NJEDA](https://millionrounds.com/fund/njeda) [ARPA-E](https://millionrounds.com/fund/arpa-e) Reported by HAX and 1 other SEC filing: $11M sold - **Aug 2026** Grant **$5.0M** *3 new* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [SOSV](https://millionrounds.com/fund/sosv) [NJEDA](https://millionrounds.com/fund/njeda) Source recorded SEC filing: $11M sold ## Founders and team From Princeton Critical Minerals's own website: 1 founder, 10 on the team. **Sean Zheng** Co-Founder, CEO - **Angela Fasnacht** Chief Operating Officer - **Diane Carlino** Chief of Staff - **Aashish Khandelwal** Head of Engineering - **Alejandro Guerrero** General Manager, South America - **Ashwath Mehra** Board Chair - **Duncan Turner** Director of the Board. - **Juan Contreras** Plant Manager, South America - **Juanita Carvallo** Operations Manager, South America - **Hang Wang** Team - **Meng Wang** Team ## 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. **Grant** 2026 **Series A** 2026 [SOSV](https://millionrounds.com/fund/sosv) L [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [NJEDA](https://millionrounds.com/fund/njeda) [ARPA-E](https://millionrounds.com/fund/arpa-e) ## Everyone who backed them [SOSV](https://millionrounds.com/fund/sosv) VC firm **2** rounds, led 1 [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **2** rounds [NJEDA](https://millionrounds.com/fund/njeda) VC firm **2** rounds [ARPA-E](https://millionrounds.com/fund/arpa-e) Government **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=princeton-critical-minerals). ## 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. ## Companies like Princeton Critical Minerals In the same sector, and raised in the last eighteen months. [**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app