Other Commercial Products · Los Angeles, CA · Founded 2005 · Acquired/Merged (Operating Subsidiary)
Manufacturer of reverse osmosis membranes intended for water desalination and water reuse. NanoH2O is based in Los Angeles, CA and was founded in 2005. Its last known valuation is $146 million (May 2014). It has raised $958 million across 1 recorded round; the latest was a $958 million growth round in Dec 2025.
Last price · $/share
—
Implied valuation
$146.3M
Total raised
$958.1M
Last round
PE Growth/Expansion
Dec 2025
Cap table — not yet on record
NanoH2O's share-class structure hasn't surfaced in our sources yet. Cap tables are assembled from certificates of incorporation, round filings, and disclosures as they land.
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·Watch NanoH2O: the Monday email on marks, rounds and moves