Osmosun
Osmosun designs and deploys patented battery-free solar-powered reverse osmosis desalination systems (5 to 10,000+ m3/day) for municipalities, remote communities, mining, agriculture, hotels, and humanitarian operators across more than 30 countries.
- Company typePublic
- Founded2016
- HeadquartersGellainville, France
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Osmosun does
Osmosun (legal entity SAS Mascara) designs, manufactures, and deploys solar-powered reverse osmosis desalination systems that operate without batteries, producing fresh water from seawater (SW) or brackish water (BW) at capacities ranging from 5 m3/day to 10,000+ m3/day. The core technology pairs photovoltaic solar generation with membrane-based desalination and a grid-hybrid mode for 24/7 operation; the company cites specific energy consumption of ~2.5 kWh/m3 at 35 g/L salinity and operating costs of 0.3-0.4 €/m3 for brackish water as differentiators. The product family comprises OSMOSUN SW and BW core lines, plus specialized variants: OSMOSUN NOMAD (containerized, air-transportable, 1-160 m3/day for emergencies) and OSMOSUN TAPS (a turnkey retail water solution enabling an Independent Water Producer business model). Proprietary OSMODEL software supports project sizing and economic modeling.
The company's go-to-market combines direct enterprise sales with regional integration partners and channel distributors, targeting municipalities, remote communities, hotels and resorts, agriculture, mining operators, humanitarian/emergency responders, and industrial users across more than 30 countries in Africa, Latin America and the Caribbean, the Middle East, and Asia-Pacific. Revenue is generated through one-time equipment sales, design/installation/commissioning services, recurring operations and maintenance contracts, equipment leasing, and long-term water production under Public-Private Partnership (PPP) and Build-Own-Operate (BOO) structures with 20-year terms.
Following its July 2023 IPO on Euronext Growth Paris (raising €10.75M) and the July 2025 acquisition by Watera Group, Osmosun operates as a subsidiary within a larger water treatment platform with 60+ years of industry presence, while retaining its brand identity, patented technology, and dedicated product portfolio.
Osmosun firmographics
Firmographics- Name
- Osmosun
- Legal name
- SAS Mascara
- Website
- https://osmosun.com
- Company type
- Public
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Osmosun designs and deploys patented battery-free solar-powered reverse osmosis desalination systems (5 to 10,000+ m3/day) for municipalities, remote communities, mining, agriculture, hotels, and humanitarian operators across more than 30 countries.
- Ownership category
- akta.pro rank
Osmosun industry classification
Industry- Product category
- Solar Desalination Equipment
- NAICS
- Water Supply and Irrigation Systems (22131), Water Supply and Irrigation Systems (221310)
- SIC
- Water Supply (4941)
- akta.pro primary industry
- Seawater Reverse Osmosis (SWRO) Plants & Operations (EUANAFAA)
- akta.pro secondary industries
- Brackish Water Reverse Osmosis (BWRO) Plants & Operations (EUANAFAB), Desalination Energy Systems (Energy Recovery Devices, Power Integration, Renewables) (EUANAFAI), Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)
Keywords
Where Osmosun is headquartered
LocationHeadquarters
- HQ city
- Gellainville
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
Osmosun business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Technology or R&D, Operations, Personnel, Marketing or Sales
Revenue model
- Water Treatment Equipment Sales: Sale of OSMOSUN desalination units including SW (seawater), BW (brackish water), NOMAD, and TAPS models. Units are sold as turnkey solutions with solar panels, reverse osmosis systems, and integration services. Pricing varies by capacity from 5 m3/day to 10,000+ m3/day units.
- Design, Installation & Commissioning Services: Engineering and project management services for custom system design, integration, installation, and commissioning. Includes technical pre-sales support, PID development, studies, and DOE documentation.
- Operations & Maintenance Services: Full O&M packages including maintenance support, spare parts supply, and long-term operational contracts. Services range from basic maintenance support to complete installation operation under PPP or BOO models.
- Equipment Leasing: Lease financing options for OSMOSUN units, particularly targeted at mining industry customers seeking temporary or mobile water production solutions with lower upfront capital requirements.
- PPP and BOO Water Production Contracts: Long-term water production contracts under Public-Private Partnership (PPP) and Build-Own-Operate (BOO) models. Contractual terms of 20 years provide recurring revenue and stable cash flows from water production.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Small-scale brackish water desalination: 5 m3/day |
| Unit Pricing | Multi-year contract | Medium-scale seawater desalination: 30-60 m3/day |
| Unit Pricing | Multi-year contract | Large-scale desalination: 150-700 m3/day |
| Unit Pricing | Multi-year contract | Industrial-scale desalination: 1,000-10,000 m3/day |
| Outcome Based/ Performance | Multi-year contract | PPP/BOO water production contracts |
Go-to-market motion3 records
Distribution channels5 records
Marketing channels8 records
Osmosun product offering
Product offeringCore offering
Osmosun (legally SAS Mascara) designs, manufactures, and installs solar-powered reverse osmosis (RO) desalination units that produce fresh water from seawater (SW) or brackish water (BW) without using batteries. Its modular product portfolio — OSMOSUN SW, OSMOSUN BW, OSMOSUN NOMAD (mobile/emergency), and OSMOSUN TAPS (retail water kiosks) — covers capacities from 1 m3/day to 10,000+ m3/day, complemented by design, installation, commissioning, O&M, and financing (leasing/PPP/BOO) services.
Product overview
Osmosun offers a portfolio of solar-powered reverse osmosis desalination solutions comprising the OSMOSUN SW (seawater) and OSMOSUN BW (brackish water) product lines, along with specialized variants like the portable OSMOSUN NOMAD and the turnkey retail solution OSMOSUN TAPS. The core products range from small 0.12 SW units producing 5 m3/day to large 86 SW units producing 2000 m3/day, all featuring patented battery-free solar photovoltaic operation. The portfolio is complemented by proprietary project modeling software OSMODEL for technical-economic analysis. Osmosun serves markets including remote communities, municipalities, emergency situations, agriculture, hotels, mining industry, base camps, and industrial activities across more than 30 countries.
Differentiator
Problem solved
Functional benefit
Brands
- OSMOSUN® TAPS: Turnkey retail water selling solution providing potable water from solar-powered desalination for remote communities
- OSMOSUN® NOMAD
- OSMOSUN SW
- OSMOSUN BW
Products and services
- OSMOSUN SW (Seawater) Solar PV-powered seawater reverse osmosis desalination units producing 5 to 10,000 m3/day. Designed for municipalities, hotels, mining, and industrial customers needing battery-free freshwater production from seawater.
- OSMOSUN BW (Brackish Water) Solar PV-powered brackish water reverse osmosis units producing 5 to 1,800 m3/day, treating TDS up to 15 g/L from underground aquifers. Combinable to reach 10,000 m3/day for municipalities, agriculture, and remote communities.
- OSMOSUN NOMAD Mobile, containerized desalination unit for rapid deployment in emergency, humanitarian, military, or natural disaster contexts. Adaptable to all water qualities and produces 1 to 160 m3/day per module.
- OSMOSUN TAPS Turnkey autonomous water and power production system combining solar desalination with an independent water producer (IWP) economic model for prepaid retail water sales in remote communities.
Quantifiable outcome
- 10 million liters of fresh water produced at Lac du Goubet, Djibouti installation, avoiding 45 tonnes of CO2 emissions per year
- +4 more outcomes
Companies that use Osmosun
Customer profileNamed customers10 records
Segments8 records
Ideal customer profiles5 records
Osmosun technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Osmosun partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core and minor.
- Watera GroupcoreWatera Group, international water treatment company with 60+ years of experience, acquired OSMOSUN in July 2025. Combined entity offers one of the most complete ranges in the market with desalination up to 400,000+ m3/day, filtration 800,000+ m3/day, and deionization 50,000+ m3/day. OSMOSUN technology integrated into Watera's broader water treatment portfolio including domestic, industrial, agricultural, hospitality, and hospital applications.
- Vergnet HydrocoreProject partner for Mozambique installations, providing brackish water desalination systems in 6 villages in Gaza Province. Specializes in sustainable water solutions based on 40+ years of drinking water and energy expertise.
- AFRIDEV MATIcoreCollaborated with Vergnet Hydro and Mascara (OSMOSUN) on Mozambique rural water supply projects, implementing solar-powered, battery-free drinking water systems.
- Impact Water Solutions (IWS)coreLong-standing integration and development partner deploying OSMOSUN units across Africa. Developed, financed, and installed Lac du Goubet project in Djibouti providing water to 1,000+ people. Creates, finances, constructs, and operates decentralized water infrastructure maximizing solar potential in southern Africa.
- MadaGreen PowerminorLocal partner for Tulear, Madagascar project deploying 2 OSMOSUN 6 BW units for 40 m3/day production to meet water needs of two communities.
- EcoasisminorMauritius-based energy solutions provider, partner for Rodrigues Island hotel installation. One of the main energy solution providers in Mauritius and the Indian Ocean region since 2010.
- Akuo Energy Indonesia / Komodo WatercorePartnership for Papagarang Island, Indonesia project using OSMOSUN TAPS retail water solution. Akuo is a French renewable energy company present in solar, wind, biomass, hydro, and storage. Developed independent water producer (IWP) business model for sustainable water access.
- VERDEXminorPhilippines-based renewable energy systems company that designed and installed OSMOSUN NOMAD unit in Dinagat Islands following Typhoon Odette damage. Specializes in simple, reliable, personalized renewable energy solutions.
- G&G BoatwashcoreExclusive distributor for OSMOSUN desalination units for port applications in France. Developed port desalination solution for Saint-Cyprien municipality, producing ~5 m3/day for boat washing operations.
- PCS Group (OSMOSUN Maroc)coreMoroccan industrial group partner for OSMOSUN MA coenterprise established October 2023. Expands OSMOSUN presence in Morocco, West Africa, and Maghreb regions with local manufacturing and maintenance capabilities.
- NamWatercoreNational water company of Namibia, supported by Climate Change Adaptation Fund. Selected Mascara for Bethany brackish water desalination project producing 100 m3/day.
- Hotel des Cocotiers (Rodrigues)minor84-room hotel customer on Rodrigues Island using OSMOSUN 2.6 SW for autonomous fresh water supply. Represents hospitality sector reference installation.
Scale indicators4 records
Recent moves9 records
Expansion highlights6 records
Osmosun competitors and assessment
Company assessmentBroad incumbents
- Acciona Agua: Spanish global water treatment major operating large-scale desalination and water reuse plants worldwide. Competes with Osmosun at the upper end of the capacity range for municipal tenders, with broader technology portfolio.
- IDE Technologies: Israeli desalination technology provider specializing in thermal and RO systems for large municipal and industrial plants. Overlaps with Osmosun's larger SWRO units and competes for utility-scale seawater projects.
- Veolia Water Technologies: Global water and wastewater treatment leader offering desalination, water reuse and O&M services. Competes with Osmosun for large municipal and industrial contracts while serving a much broader portfolio of customers.
- SUEZ Water Technologies & Solutions: Major international water treatment operator with significant desalination and industrial water capabilities. Competes with Osmosun for utility-scale and industrial water infrastructure, especially through its historical Idreva/Degrémont heritage.
Direct peers
- Solar Water Solutions: Finnish developer of solar-powered desalination plants, offering containerized RO systems for off-grid and remote applications. Directly competes with Osmosun in solar-driven seawater and brackish water desalination for islands and rural communities.
- Fluence Corporation: Australia/Israel-based provider of decentralized water and wastewater treatment including desalination and reuse systems. Targets similar emerging-market municipalities and industrial clients with modular, containerized solutions.
- Trunz Water Systems: Swiss manufacturer of mobile, containerized desalination and water treatment units including solar-powered variants for humanitarian and remote deployments. Competes most directly with the OSMOSUN NOMAD product line.
- Waterise: Norway/Singapore-headquartered company developing subsea desalination plants powered by deep ocean pressure. Competes with Osmosun in energy-efficient, decentralized desalination but uses a fundamentally different technology architecture.
Emerging players
- Desolenator: UK/Netherlands-based developer of solar thermal desalination technology for off-grid communities and industry. Competes at the smaller end of Osmosun's capacity range with a different thermal approach but similar off-grid use cases.
Others
- Watera Group: French international water treatment group with 60+ years of heritage that acquired Osmosun in July 2025. Parent company and now strategic partner providing broader market access, financing, and project execution capabilities to Osmosun's solar-powered solutions.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Osmosun social profiles
Digital presenceOsmosun financial estimates
Financial estimateRevenue estimate
Valuation estimate
Osmosun leadership team
Management profileNumber of profiles
Profiles7 records
Osmosun subsidiaries and ownership
Company hierarchySubsidiaries1 record
Osmosun funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Osmosun M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Osmosun
What does Osmosun do?
Osmosun (legally SAS Mascara) designs, manufactures, and installs solar-powered reverse osmosis (RO) desalination units that produce fresh water from seawater (SW) or brackish water (BW) without using batteries. Its modular product portfolio — OSMOSUN SW, OSMOSUN BW, OSMOSUN NOMAD (mobile/emergency), and OSMOSUN TAPS (retail water kiosks) — covers capacities from 1 m3/day to 10,000+ m3/day, complemented by design, installation, commissioning, O&M, and financing (leasing/PPP/BOO) services.
Is Osmosun a public or private company?
Osmosun is a public company. It is classified as public and is currently operating.
When was Osmosun founded?
Osmosun was founded in 2016. It employs 11 to 50 people.
Where is Osmosun based?
Osmosun is headquartered in Gellainville, France, in the Europe region.
How does Osmosun make money?
Five revenue lines are on record. Water Treatment Equipment Sales are the primary driver. The others are design, Installation & Commissioning Services, operations & Maintenance Services, equipment Leasing and PPP and BOO Water Production Contracts.
Who are Osmosun's main competitors?
Broad incumbents on record are Acciona Agua, IDE Technologies, Veolia Water Technologies and SUEZ Water Technologies & Solutions. Direct peers are Solar Water Solutions, Fluence Corporation, Trunz Water Systems and Waterise. Desolenator is listed as an emerging player. Watera Group is listed as an others.
Does Osmosun have an API?
No public API is recorded for Osmosun.
What industry is Osmosun in?
Osmosun's product category is Solar Desalination Equipment. Its primary akta.pro industry code is EUANAFAA, Seawater Reverse Osmosis (SWRO) Plants & Operations, with a secondary code of EUANAFAB, Brackish Water Reverse Osmosis (BWRO) Plants & Operations. Its NAICS code is 22131 and its SIC code is 4941.