NanoH2O

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

Who backs NanoH2O?

4 investors
InvestorType
Mubadala Investment CompanyOther
University of CaliforniaOther
Glenwood Private Equity—
Los Angeles—
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NanoH2O investors

4 investors are on record for NanoH2O, including Mubadala Investment Company, University of California, Glenwood Private Equity and Los Angeles. The growth round in Dec 2025 drew 1 investor.

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