- CEO
- Orfeas Mavrikios
- Full Time Employees
- 25
- Sector
- Industrial services
- Industry
- Environmental services
- Address
- Espace Atlantic - Bat B16 Gellainville CE France 28630
- IPO Date
- Jul 10, 2023
- Business
- Osmosun S.A. (ALWTR.PA) designs, manufactures and installs sustainable water treatment solutions powered by renewable energy, specializing in patented reverse osmosis desalination of seawater and brackish water using solar power without batteries; its core OSMOSUN branded product ranges include SW series for seawater desalination, BW series for brackish water, OSMO-WATT containerized solar-powered units, OSMOSUN TAPS integrated systems for remote drinking water production, OSMOSUN NOMAD transportable modular units for emergency and humanitarian applications, and scalable facilities combining standard units up to 20,000 cubic meters per day capacity; additional services encompass project financing via leasing, PPP and BOO models, turnkey installation, full operation and maintenance packages with remote monitoring, and long-term spare parts supply. Founded in 2014 by Marc Vergnet and Maxime Haudebourg and headquartered at 20 avenue Gustave Eiffel, bâtiment B16, 28630 Gellainville, France, the company serves diverse markets including remote communities, municipalities, emergency situations, agriculture, hotels, mining, base camps and industrial activities across more than 30 countries on four continents, notably Africa, Latin America and the Caribbean, Middle East and Asia-Pacific. In a major strategic development finalized in July 2025, Unibios Holdings S.A., a Greek firm listed on the Athens Stock Exchange, became Osmosun's majority shareholder with 65% ownership through €2 million in capital increases, enabling Osmosun to acquire a 30% stake in Unibios subsidiary Watera International, a leading European water treatment group with over 5,000 installations focused on reverse osmosis, filtration, ultrafiltration, recycling and deionization; this combination introduces operational synergies, cost reductions exceeding 30% versus 2024 levels, a new organizational structure including the creation of Watera France and a planned rebranding to Watera, leadership transition to Orfeas Mavrikios as Chairman and CEO with Maxime Haudebourg remaining as Board Director, and ambitions for profitable growth targeting 15% EBITDA margins through organic expansion and acquisitions in water treatment.