SiTration

Cambridge, MA · Founded 2020 · Privately Held (backing)

Developer of a filtration-membrane platform designed to enable low-cost recovery of critical minerals from mining, refining, and recycling streams. SiTration is based in Cambridge, MA and was founded in 2020. Its last reported valuation was $35 million in May 2024. It has raised $17.7 million across 4 recorded rounds; the latest was a $3 million seed round in Jun 2025.

Last reported valuation
$35.0M
Oct 2026
Priced at
—
Total raised
$17.7M
Last round
Seed Round
Jun 2025

SiTration key facts

as of Oct 2026
  • Developer of a filtration-membrane platform designed to enable low-cost recovery of critical minerals from mining, refining, and recycling streams.
  • SiTration is valued at approximately $35.0M as of Oct 2026 (last reported valuation).
  • 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).
Last reported valuation
LOW confidence
$35.0M

SiTration's last reported valuation, May 2024. Nothing priced has surfaced since.

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SiTration funding rounds

4 rounds
Jun 2025Seed Round$3.0MSEC filing▮
May 2024Early Stage VC$11.8MSEC filing▮
Jan 2024Seed Round$800KSEC filing▮
Mar 2022Seed Round$2.5MSEC filing▮

SiTration valuation

SiTration's last reported valuation was $35 million in May 2024. No priced round, secondary trade or fund mark has surfaced since.

How much has SiTration raised?

SiTration has raised $17.7 million across 4 recorded rounds since 2022. The largest was an $800,000 seed round in Jan 2024; the most recent was a $3 million seed round in Jun 2025.

SiTration has filed 8 Form Ds with the SEC since 2020, most recently in Jul 2025 ($3 million sold to 1 investor).

SiTration investors

16 investors are on record for SiTration, including US National Science Foundation, Greentown Labs, SBXi and E14 Fund. The seed round in Jun 2025 drew 1 investor.

About 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
Ownership
Privately Held (backing)

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