WaterMatch @ European Water Tech Week 2026

26 – 28 Oct 2026 | Leeuwarden, Netherlands

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Retein AB

Start-up

www.retein.tech/Gothenburg, Sweden
1 profile visit

About

Retein is developing separation membranes that efficiently recover waterborne resources with molecular precision for circular use. Although constantly interested in exploring potential use cases, we are currently focusing on treatting wastewater streams containing the smallest-sized organic molecules like PFAS, Urea, Organic Solvents, and more.
Retein has patented a protein stabilization process inspired by diatoms, that allows the stabilized protein to retain its structure and functionality. We apply this silica stabilization to aquaporins, to form capsules that enable highly selective and energy-efficient resource recovery membranes that can be applied in a wide range of settings.

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Areas of activity

PRIORITY AREA

Water reuse and recyclingWater and wastewater treatment, including recovery of resources

SUPPLY CHAIN

Business DevelopmentDesign / R&D / EngineeringTesting & Analysis

WATER SERVICES AND WATER USE

Industrial Water SupplyRecycling and ReuseIndustrial wastewater (Treatment and Sewerage)Process water treatmentWater and Energy

WATER TECHNOLOGY

Filtration and SeparationWater Chemistry

Representatives

Business Developer

Retein AB

CEO & Co-founder

Retein AB