Groupe OKwind
Groupe OKwind is a listed French solar-energy manufacturer, not a financial fund, that has made two strategic corporate venture bets in water: Purecontrol, an AI platform that optimises energy use in water networks, and OSMOSUN, solar-powered desalination now part of the WATERA group. As of 2026 it has backed 2 water companies across 3 deals.
Compiled by Antoine Walter, (don't) Waste Water, from official filings and direct intelligence in Leviathan.
The take
Groupe OKwind is not a venture fund at all. OKwind is a listed French manufacturer of biaxial solar trackers that help farms, businesses and local authorities produce and consume their own electricity on site. Founded near Rennes in 2009 and floated on Euronext Growth Paris in 2022, its water story is a corporate-venture one: it invests off its own balance sheet, as a strategy player rather than a financial backer, in companies that pair naturally with its solar and energy-management kit.
OKwind's water exposure is two 2023 bets that sit exactly where energy meets water. Purecontrol and OSMOSUN are the two names. Purecontrol builds AI software that reads live data from pumps and treatment plants to cut the energy bill of water and sanitation networks; OSMOSUN makes solar-powered reverse-osmosis units that produce drinking water from seawater or brackish water without batteries or a grid connection. Water utilities are among the heaviest electricity users around, which is the whole logic: OKwind sells them solar, and these stakes deepen the pitch.
OKwind's water tie is personal as well as financial. Founder Louis Maurice took a board seat at OSMOSUN when OKwind backed its 2023 market debut, and OKwind led roughly two-thirds of the rounds it joined, alongside French names like Veolia and BNP Paribas Developpement. It is a strategic-investor posture, not a fund's: a manufacturer buying a window into the water market it wants to sell into.
As of its 12 June 2026 annual results, OKwind is deep in a turnaround. 2025 revenue fell 58% to 23.8 million euros, the company completed a job-protection plan that cut headcount to 134, and it has refocused hard on its core solar-tracker, storage and energy-management business; OSMOSUN, for its part, joined the WATERA group in mid-2025. For a newcomer the honest read is this: OKwind's water chapter is two strategic stakes from a stronger year, now parked while the company fixes its core, rather than an active water-investing programme.
Water Commitment Score
Compiled from official filings, third-party records, and direct intelligence from investors and founders, in Leviathan · recomputed monthly · as of Jun 2026.
How they invest
Portfolio · 2 water companies
Frequently asked
- What does Groupe OKwind invest in?
- Groupe OKwind is a solar-energy manufacturer that invests strategically, off its own balance sheet, rather than as a financial fund. Its two water investments are Purecontrol, an AI platform that cuts the energy use of water networks, and OSMOSUN, a solar-powered desalination maker. Both date from 2023.
- Does Groupe OKwind invest in water?
- Groupe OKwind has backed 2 water companies across 3 deals, leading about two-thirds of them: Purecontrol, for AI-driven water-network energy optimisation, and OSMOSUN, for solar desalination. (don't) Waste Water rates its water commitment Committed. Both bets pair water with OKwind's core solar and energy-management technology.
- Who runs Groupe OKwind?
- Groupe OKwind was founded in 2009 by Louis Maurice, who chairs the company and sits on the board of its desalination investment OSMOSUN. Valentin Maurice serves as Deputy CEO for business development and innovation. The company is listed on Euronext Growth Paris and based in Brittany, France.
- Where is Groupe OKwind based?
- Groupe OKwind is based in Torcé, in Brittany, north-west France, near Rennes, where it designs and manufactures its solar trackers. Founded in 2009, it has been listed on Euronext Growth Paris since 2022 and employed about 134 people as of mid-2026 after a restructuring.
- Is OKwind a wind-power company?
- Despite its name, Groupe OKwind is a solar company, not a wind-power one. OKwind designs biaxial photovoltaic trackers for on-site self-consumption by farms, businesses and communities. Its water links come through two solar-adjacent investments, Purecontrol and the solar-desalination firm OSMOSUN, not through wind energy.