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FenX

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Transforming mineral waste into high-performance and sustainable insulation for the building industry

Baden, SwitzerlandFounded 2019Energy
Valuation $25–50M Last recorded · 2025
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for FenX and the history behind them.

About FenX

FenX is a Swiss-based startup that operates in the green technology sector, specifically focusing on the production of high-performance and sustainable insulation foams. The company's unique selling proposition is its innovative process of re-qualifying abundant mineral waste to create insulation materials. This not only contributes to waste reduction but also promotes a circular economy, a system aimed at eliminating waste and the continual use of resources.

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FenX's business model is centered around the production and sale of these insulation materials. They utilize the inherent properties of mineral particles to create highly porous materials with excellent insulating properties. This process transforms what would otherwise be waste into a valuable resource, thereby creating a sustainable and profitable business model.

The company's target market includes construction and manufacturing industries that require insulation materials. By offering a green alternative to traditional insulation materials, FenX is well-positioned to cater to the growing demand for sustainable and eco-friendly solutions in these sectors.

FenX generates revenue through the sale of its insulation foams. The company's focus on sustainability and performance without compromises makes it an attractive choice for businesses looking to reduce their environmental impact without sacrificing quality or efficiency.

In conclusion, FenX is a forward-thinking startup that is leveraging waste materials to create high-quality insulation foams. Its commitment to sustainability and the circular economy sets it apart in the market and positions it for potential growth in the green technology sector.

Source: Dealroom company data

At a glance

Founded
2019
Headquarters
Baden, Switzerland
Sector
Energy

Investors

15 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed10 investors entered at this stage

  • Venture Kick
  • Swiss Prime Site
  • Swiss Climate Foundation
  • ETH Foundation
  • TRfinanz Holding
  • CADFEM International AG
  • European Commission
  • ZKB - Zürcher Kantonalbank
  • CIMA Corporate Investment Management Affentranger Holding
  • ValueBridge

Series A5 investors entered at this stage

  • Supernova Invest
  • Move Energy
  • Çimsa
  • buildify.earth
  • 4See Ventures
Team profiled 7 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 5 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇨🇭 Switzerland82.3%
🇳🇱 Netherlands5.9%
🇫🇷 France5.9%
🇬🇧 United Kingdom5.9%
4 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about FenX on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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