
Zahlenwerk means, literally, "a work of numbers". We are an independent software studio in Berlin-Charlottenburg, run by the two people who scope, design, and build every project. No account managers, no hand-offs, no layer between you and the people writing the code. We start with the data, not the screen. Most products built on messy data fail at the modelling stage, long before anyone argues about a button — so we map the process and model the data first, and let the interface stand on something solid. Design and engineering stay in the same two heads, which is why what gets drawn is what gets shipped. Between us we have built workforce tooling for a 1,000-person reorganisation at Airbus and sales reporting at SPREAD AI. Today we split our time between client work and our own product: Wealth Management by Zahlenwerk, portfolio software for family offices and investment managers.