Key facts
- NanoH2O’s last known valuation is $146.3M (May 2014).
- It has raised $958.1M across 1 recorded rounds; the latest was PE Growth/Expansion ($958.1M) in Dec 2025.
- Notable investors include Mubadala Investment Company, University of California, Glenwood Private Equity, Los Angeles.
- NanoH2O has filed 3 Form Ds with the SEC since 2009, most recently Dec 2011 ($14.9M sold to 4 investors).
- Status: Acquired/Merged (Operating Subsidiary).
- ·Post-money valuations for all 1 rounds
- ·The complete investor list — 4 names
- ·Watchlist + deal alerts for NanoH2O
Funding rounds
1 roundsAbout NanoH2O
Manufacturer of reverse osmosis membranes intended for water desalination and water reuse. The company develops membranes for seawater and brackish water desalination, as well as wastewater reclamation, thereby lowering the cost of desalination and improving desalination energy efficiency and productivity.
- Industry
- Other Commercial Products
- Sector
- Business Products and Services (B2B)
- HQ
- Los Angeles, CA, United States
- Founded
- 2005
- Employees
- 120
- Website
- lgwatersolutions.com/
- Ownership
- Acquired/Merged (Operating Subsidiary)
NanoH2O doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in NanoH2O shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on NanoH2O in its N-PORT filings yet. We sweep new filings monthly.