Key facts
- SiTration’s last known valuation is $35.0M (May 2024).
- It has raised $17.7M across 4 recorded rounds; the latest was Seed Round ($3.0M) in Jun 2025.
- Notable investors include US National Science Foundation, Greentown Labs, SBXi, E14 Fund, The Engine — 16 tracked in total.
- SiTration has filed 8 Form Ds with the SEC since 2020, most recently Jul 2025 ($3.0M sold to 1 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 4 rounds
- ·The complete investor list — 16 names
- ·Watchlist + deal alerts for SiTration
Funding rounds
4 roundsAbout SiTration
Developer of a filtration-membrane platform designed to enable low-cost recovery of critical minerals from mining, refining, and recycling streams. The company offers durable silicon-based membranes with tunable pore sizes and integrated electro-extraction for the extraction of lithium, cobalt, nickel, copper, and other metals from complex waste or feed-stocks, enabling clients to process dilute, harsh, or mixed streams more efficiently and with lower chemical input.
- Sector
- Business Products and Services (B2B)
- HQ
- Cambridge, MA, United States
- Founded
- 2020
- Employees
- 22
- Website
- sitration.com/
- Ownership
- Privately Held (backing)
SiTration 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 SiTration 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 SiTration in its N-PORT filings yet. We sweep new filings monthly.