Investment
Why Deeptech Needs Patient Capital
14 March 2025
The best deeptech companies take longer to build than software plays. That is a feature, not a bug — but it demands a different kind of investor.
Read moreThe Name
Nexum is Latin
for bond
In Roman law, nexum described a binding agreement between two parties, built on mutual trust and shared consequence. It was not a contract enforced by courts, but a relationship honoured by character. That etymology is at the heart of how we operate.
We do not think of ourselves as passive allocators waiting for returns. We are builders first, backers second. When we commit to a founder, we are entering a nexum, a bond with shared stakes, aligned incentives, and a genuine belief that the work matters.
The knot in our logo reflects this: two paths that curve toward each other, cross at the centre, and continue outward together. Capital and code. Investor and operator. Thesis and execution.
The Nexum Knot
What We Do
Invest. Build. Support.
Invest
Capital and conviction for early-stage deeptech founders. We write pre-seed and seed checks between €50K and €500K, and we show up as operators, not just observers.
Build
We develop our own AI, software, and data products in-house. Our build studio creates tools and platforms that we use, deploy, and sometimes spin out as separate ventures.
Support
Operational depth, advisory, and a holding-company structure that gives portfolio companies access to finance, talent, legal, and network resources from day one.