Key facts
- Queens Carbon’s last known valuation is $32.3M (Nov 2025).
- It has raised $10.0M; the latest was Seed Round ($10.0M) in Nov 2025.
- Notable investors include Plug and Play Tech Center, Breakthrough Energy, Arpa-E, Buzzi Unicem, Clean Energy Venture Group — 6 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 6 names
- ·Watchlist + deal alerts for Queens Carbon
- ·The full record, as it builds
Funding rounds
No funding rounds for Queens Carbon are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Queens Carbon
Developer of a hydrothermal processing technology designed to reduce energy consumption. The company's technology reduces the energy consumption required for calcination and material synthesis, enabling industries to reduce greenhouse gas emissions, advance sustainable development, and address climate change challenges.
- Sector
- Business Products and Services (B2B)
- HQ
- Pine Brook, NJ, United States
- Founded
- 2022
- Employees
- 21
- Website
- queenscarbon.com/
- Ownership
- Privately Held (backing)
Queens Carbon doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Queens Carbon shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Queens Carbon in its N-PORT filings yet. We sweep new filings monthly.