Samuel Hess
CEO
UniSieve
High-precision membranes for industrial gas separation and carbon capture
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About
UniSieve is a Zürich deep-tech company developing molecularly precise membrane systems for industrial gas separation and point-source carbon capture. Founded in 2018 as an ETH Zurich spin-off, it combines advanced materials with scalable membrane manufacturing so plants can recover more product and cut energy use versus thermal separation. On October 8, 2026 it announced a $9 million Series A led by Orano Venture Fund (managed by Supernova Invest), with Amadeus APEX Technology Fund, Founderful, Zürcher Kantonalbank and Guenat Holding, bringing total funding to about $25 million.
- Website
- unisieve.com
- Stage
- series-a
- Founded
- 2018
- Location
- Zürich, Switzerland
- Added via
- web
- Ownership
- unclaimed