FenX AG is a cleantech company spun out of ETH that focuses on producing environmentally friendly building insulation. Its technology enables the creation of high-performance, low-carbon materials intended to replace conventional insulation products. The firm positions its solutions as both sustainable and cost-competitive, aiming to reduce the construction sector’s carbon footprint. Proceeds from its recent financing will be used to expand production capacity and accelerate market entry for its insulation portfolio. While detailed operating metrics were not disclosed, the successful raise underscores investor interest in low-carbon building technologies. The company is concentrating on scaling its manufacturing processes and broadening commercial partnerships to support its growth trajectory.

Total raised

$163M

Funding rounds

3

Latest round

Series A

Latest activity

Oct 2025