Who does the work
I spent my first four years inside controlling, closing books and defending the numbers in them to people with every reason to question them. That is where I learned that a reporting problem is rarely about reporting, since it is usually a definition nobody owns, built two ways by two people who are both right under rules neither of them wrote down.
Eleven years of BI consulting across Europe followed, in Power BI, DAX, Microsoft Fabric and the data architecture underneath them. Plenty of people can write the DAX, but far fewer know what the figure is supposed to mean before anyone writes it, and the controlling years are the reason I ask that question first.
I lead every engagement myself, from the first call through to handover, so the person who scopes the problem is the person who solves it.

Niklas Hoeppener
Founder • Ariavor
- Four years in controlling
- Closing books and defending the numbers in them
- Eleven years
- BI consulting across Europe
- Power BI • DAX • Microsoft Fabric
- And the data architecture underneath them
- English and German
- Engagements run in either