About
Straight to the people who build.
We're based in Basel and work directly with you — short paths, fixed contacts, no layers in between. Whoever you talk to is the person who designs and builds it.
Who we are
CONCEPTLINE is the software brand of EVENTLINE GmbH — a lean team from Basel. We build custom software for SMEs and trades, exactly where off-the-shelf tools don't fit or get expensive as they scale.
Our approach is simple: first we understand how you really work, then we build the system around that. Structure before surface, honest prices — and once you've paid, it all belongs to you.
How we think
Structure first
First we work out what the system has to do — then we design the surface. That saves expensive rebuilds mid-project.
One line
Concept, design and code from one team. Nothing lost in handover between agency, designer and developer.
For the long run
We write clean, documented code — so your site can still be extended in two years without a rebuild.
The team
Leo Balaszeskul
Managing DirectorHead of Sales
Mischa Dittus
Managing DirectorHead of Software Development
Tim Böhm
Website Development
Sebastian Wittlin
Sales
Let's talk.
Tell us briefly what it's about. We'll get back to you within one working day.
No obligation. The code is yours afterwards — no subscription, no golden cage.