Membrion
formerly MEMBRION INCMembrion is a climate tech company in Seattle, United States, founded in 2016. It has raised $38.5M across 3 rounds, most recently a $20.0M Extension Round in October 2025.
Proving what's possible when water gets difficult
- Headquarters
- Seattle, Washington
- Employees
- 11–50
- Founded
- 2016
- Business Model
- B2B
- Website
- membrion.com
- Total Funding
- $38.5M
- Last Round
- $20.0M Extension RoundOct 2025
- Rounds
- 3
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 3 funding rounds and 5 investors for this company. The full record is or through the API.
About
Membrion is an industrial wastewater treatment company based in Seattle, Washington that develops and deploys Electro-Ceramic Desalination (ECD) technology. Unlike conventional filtration systems that trap contaminants until performance degrades, Membrion's ECD solutions continuously separate dissolved salts and heavy metals, enabling industrial facilities to stabilize wastewater treatment, recover up to 98% of water, and achieve zero liquid discharge goals without replacing existing infrastructure. The company serves sectors including semiconductor manufacturing, metal finishing, and food and beverage production, partnering with Fortune 500 clients to address growing water scarcity and regulatory pressures.
Summary
It lists 11–50 employees. It has raised $38.5M in total across 3 rounds, most recently a $20.0M Extension Round in Oct 2025. Investors include Pangaea Ventures, Samsung Venture Investment Corporation and PureTerra Ventures.
Tech & App Stack
8 technologies & apps tracked
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Funding History
Oct 2025
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Funding: Series A through Extension Round. Amounts, valuations, and investors where available.
Investors
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