# Water Horizon funding: rounds and investors

> Water Horizon has raised $21M across 1 round since 2025. Investors include Banque des Territoires. Every round with its source.

Source: https://millionrounds.com/company/water-horizon (Millionrounds; every figure on the page links to its filing or article)

France · [Series B startup](https://millionrounds.com/companies)

# Who invested in *Water Horizon*

One round we have observed, with the one investor named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Energy

Raised 12 months ago

Funding summary Updated 26 Oct 2026

**$21M** raised across 1 round since 2025, from 1 source

- **Latest round:** Series B, $21M Nov 2025
- **Investors:** 1

See who backed them

## The rounds

- **Nov 2025** Series B **$21M** [Banque des Territoires](https://millionrounds.com/fund/banque-des-territoires) Source recorded

## Everyone who backed them

[Banque des Territoires](https://millionrounds.com/fund/banque-des-territoires) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=water-horizon).

## Also claim to have backed them

This firm lists Water Horizon as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[ARIS](https://millionrounds.com/fund/aris) Private equity Per its own site

## Quick answers about Water Horizon

### Who invested in Water Horizon?

Water Horizon's investors include Banque des Territoires.

### How much has Water Horizon raised?

Water Horizon has raised $21M across 1 round since 2025.

### When did Water Horizon last raise?

Water Horizon's most recent round was a Series B of $21M in Nov 2025.

### What was Water Horizon's biggest round?

Its most recent round, $21M in Nov 2025, is also its largest on record.

### Who backed Water Horizon first?

Water Horizon's first round on record, in Nov 2025, was backed by Banque des Territoires.

### What stage is Water Horizon at?

Water Horizon's latest named round is a Series B, in Nov 2025.

### Where is Water Horizon based?

Water Horizon is based in France.

## Companies like Water Horizon

In the same sector, and raised in the last eighteen months.

[**Elax Energy** $34M · Oct 2026](https://millionrounds.com/company/elax-energy)[**EPYR** $20M · Oct 2026](https://millionrounds.com/company/epyr)[**HyLight** $18M · Oct 2026](https://millionrounds.com/company/hylight)[**Voltheia** $5.4M · Aug 2026](https://millionrounds.com/company/voltheia)[**Technip Energies** $1.4B · Jun 2026](https://millionrounds.com/company/technip-energies)[**Mantle8** $38M · May 2026](https://millionrounds.com/company/mantle8)

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