NanoH2O Funding: $75M Raised, Series D (2025)

NanoH2O funding overview

NanoH2O is based in Torrance, California. NanoH2O has raised $75M in total disclosed funding. That places its disclosed total in the $25M–$100M range. Its most recent disclosed round is a Series D announced in December 2025. The round record for NanoH2O runs through 2025; nothing later has been disclosed. Investors on record include BASF Venture Capital, Total Energy Ventures, Keytone Ventures, Khosla Ventures, Oak Investment Partners, CalPERS Clean Energy & Technology Fund and 1 others. 7 distinct backers are named across the disclosed rounds.

NanoH2O at a glance

Total raised: $75M
Latest round: Series D
Latest round date: December 2025
Headquarters: Torrance, California
Notable investors: BASF Venture Capital, Total Energy Ventures, Keytone Ventures, Khosla Ventures, Oak Investment Partners, CalPERS Clean Energy & Technology Fund, PCG Clean Energy & Technology Fund

Frequently asked about NanoH2O funding

How much has NanoH2O raised?: NanoH2O has raised $75M in total disclosed funding across the rounds on record.
Who has invested in NanoH2O?: BASF Venture Capital, Total Energy Ventures, Keytone Ventures, Khosla Ventures, Oak Investment Partners, CalPERS Clean Energy & Technology Fund are named among the investors backing NanoH2O.
What was the latest NanoH2O funding round?: The most recent disclosed round is a Series D, announced in December 2025.
Where is NanoH2O based?: NanoH2O is based in Torrance, California.
When did NanoH2O last raise?: The last disclosed NanoH2O round closed in December 2025 at Series D.

Round data for NanoH2O is compiled from public filings and announcements; blank fields mean nothing has been disclosed rather than nothing exists. Continue with the companies in Torrance and backer lists below.

NanoH2O Funding: $75M Raised, Series D (2025)

NanoH2O funding overview

NanoH2O at a glance

Frequently asked about NanoH2O funding

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