Water Horizon

Private

CugnauxEnergy & Sustainabilityhttps://water-horizon.com/

Last Round

Series B

Nov 26, 2025

Total Funding Raised

$29.25M

Company Overview

Water Horizon is an energy-tech company that develops and provides mobile thermal battery technology to recover and store industrial waste heat for renewable energy applications.

Sector

Energy & Sustainability

Verticals

Energy Storage, Energy Management, Smart Manufacturing, Circular Economy

Business Model

B2B

Customer Profile

Usage-Based SaaS, Services & Consulting

AI Layer

Non-AI

Keywords

thermal energy storagewaste heat recoverycooling as a serviceCaaSmobile thermal batteryindustrial decarbonizationenergy as a serviceEaaScircular economythermal transportusage-based billingheat recyclingindustrial efficiencyclean techdeep tech

Historical Pricing

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Water Horizon Comps

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Water Horizon comps — public and private peers by sector, stage, and business model
Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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Water Horizon Funding Rounds

Historical fundraising activity

Data table
Round	Date	Amount Raised	Valuation	Investors	Sources
Series B	Nov 26, 2025
Grant	May 27, 2024
Series A	Mar 22, 2022
Grant	Jan 1, 2022
Grant	Nov 1, 2018
Seed	Jun 1, 2018

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Water Horizon Investors

Notable investors and investment history

Water Horizon investors
Investor	Rounds
Banque Populaire	Grant
Bpifrance	Grant
Eren Groupe	Series B
Région Occitanie	Grant
Banque des Territoires	Series B, Series A
European Union	Grant
IRDI Soridec Gestion	Series A

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Water Horizon Filings

SEC and related filings with document metadata.

Data table
Typed	Date	Amount Offered	Amount Sold	Filling	Pages	Download
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Water Horizon Filings

SEC and related filings with document metadata.

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Firmographic Details

HeadquartersCugnaux

Employee Range37

Year Founded2017

Last FundingNov 26, 2025

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