October 2026
Valeureux invests in Brine Act, a Polytechnique Paris-Saclay deeptech that turns concentrated industrial brines into clean water and reusable salts.
Portfolio
Proof over promises
Portfolio news
Read more
The Valeureux Letter
Your address is used only to send you this letter. It is hosted by Brevo, our sending provider, inside the European Union. You will first receive a confirmation email: without your click, nothing is recorded. Privacy policy
Convexity
When risk falls and value rises
Some technologies become less risky long before their value becomes visible. It is precisely in that interval that much of the value creation plays out. A quiet moment, often short, where reading the timing makes the difference.
Read moreQuiet Signals
Before the market catches on
The first signs appear before the visible proof: a technology de-risking, a use case confirming itself, a partner committing, a market beginning to react. Taken one by one, they look weak. Together, they can reveal that an inflection point is coming.
Read moreAbout
Get to know us
Philippe NUSSBAUMER
Co-founder
Convex Deep Tech companies deliver the best returns in the market, yet most investors can’t access it. They simply don’t have the expertise to make sense of it.
That’s the gap Valeureux fills: a professional venture capital firm built to spot, fund, and back scientific innovation right from the start
Célestine FALISE
Co-founder
Convex Deep Tech companies are full of exceptional opportunities. But that only works when companies plan their tech scale-up and business scale-up together, from day one, with a global mindset and a sharp go-to-market strategy.
That’s exactly what we bring to our portfolio companies: the skills, the opportunities, and the hands-on support to make it happen.