Who invested in Aqua Membranes

2 rounds we have observed, with the 2 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Construction

Raised 5 months ago

Funding summaryUpdated 26 Oct 2026

$11Mraised across 2 rounds since 2024, from 2 sources

$4.2MSeries B$6.5MRound

Latest round: Round, $6.5MJun 2026
Step-upi: 1.6×
Investors: 2

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

20252026

$4.2MSeries B$6.5MRound

First round: Series B, $4.2M
Biggest round: $6.5M
Between rounds: 20 months

The rounds

Jun 2026
Round$6.5M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $6.5M sold, first sale Jun 2026
Oct 2024
Series B$4.2M2 new
- Y Combinator
- Clean Energy Ventures
Source recorded

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Series B2024Round2026

Y Combinator

Clean Energy Ventures

Everyone who backed them

Y CombinatorAccelerator1round

Clean Energy VenturesVC firm1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 4 firms list Aqua Membranes as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.