Membrion: Funding, Investors & Team (Oct 2026)
Using a robust ceramic desalination membrane, Membrion lowers the high cost of treating challenging industrial wastewater sources by up to 90%. We are a startup with roots in Seattle that takes pride in its multicultural and adaptable culture. In order to address the market's demands for wastewater treatment, we have developed a pilot production facility using more than $10 million in funding from private investors and government subsidies.
Membrion has raised $35.5M across 4 funding rounds on record, the most recent a Series B of $20.0M announced in Oct 2025.
That round is above the $15M median round size for Energy companies tracked on FundedIQ over the last two years.
Membrion Company Profile and Key Stats
Latest funding round on record: Oct 2025.
Membrion Funding Rounds
Membrion raised $3.0M in a Series A announced in Sep 2021.
1.3 years later, a Series B of $7.0M was announced in Jan 2023.
7 months later, a Series B of $5.5M was announced in Aug 2023.
2.2 years later, a Series B of $20.0M was announced in Oct 2025.
Membrion Founders and Leadership Team
Contact details for the Membrion team: 1 of 2 have an email address on file.
Start 14-day free trial →Membrion Funding Compared to Other Energy Startups
Membrion's latest round of $20.0M is above the median round in Energy. Medians cover the last 24 months of disclosed rounds.
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Membrion Funding FAQs
What does Membrion do?
Using a robust ceramic desalination membrane, Membrion lowers the high cost of treating challenging industrial wastewater sources by up to 90%. We are a startup with roots in Seattle that takes pride in its multicultural and adaptable culture. In order to address the market's demands for wastewater treatment, we have developed a pilot production facility using more than $10 million in funding from private investors and government subsidies.
How much funding has Membrion raised?
Membrion has raised $35.5M across 4 rounds on record. The most recent is a Series B of $20.0M announced in Oct 2025.
When did Membrion last raise funding?
Membrion's most recent funding round on record is a Series B of $20.0M, announced in Oct 2025.
Who founded Membrion?
FundedIQ lists Greg Newbloom (Founder) at Membrion.
Who is the CEO of Membrion?
John Plaza is listed as CEO at Membrion.
Where is Membrion headquartered?
Membrion is based in Seattle, Washington, United States.
How many employees does Membrion have?
Membrion is in the 11-50 employee band.
How does Membrion's funding compare to other Energy startups?
Membrion's latest round of $20.0M is above the $15M median round size for Energy companies on FundedIQ across 2,284 tracked companies over the last two years.
About FundedIQ's Membrion Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Membrion is left off this page rather than filled in.
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