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UniSieve secures $9M in Series A funding led by Orano Venture Fund to expand production of its membranes for industrial gas separation.

PRIVATEOct 08, 2026

Amount Raised

$9 Million

Round Type

Series A

Zurich

Investors

Amadeus Apex Technology FundFounderfulZürcher KantonalbankGuenat HoldingOrano Venture Fund

Description

UniSieve, a deep tech startup based in Zurich, has raised $9M in Series A funding. The financing, led by Orano Venture Fund, will help the company expand its production of innovative membranes. These membranes aim to replace heat-dependent separation processes in olefin manufacturing and capture carbon. The company's total funding has now reached $25M.

Company Information

Company

UniSieve

Location

Zurich, Zurich, Switzerland

About

UniSieve is a deep tech startup based in Zurich focused on producing membranes using metal-organic frameworks (MOFs) and zeolites to replace conventional, heat-dependent separation processes. Established in 2018 by ETH Zurich classmates, the company aims to improve the efficiency of molecular separation for applications in fuels, fertilizers, and plastics. UniSieve has raised a total of $25 million to date, with $9 million secured in its recent Series A funding round. Their innovative approach addresses significant energy challenges in the industry.

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Funding Insights

What this usually means
Typical timeline to Series B
Series A companies typically raise their next round in 10-18 months

UniSieve raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.