The core activity of Prof. Dr. Stefan Sander's company is consulting and teaching in the areas of controlling, finance, and accounting, particularly for SMEs (Small and Medium-sized Enterprises) and international corporations. The activities include:
* Corporate consulting through Sander & Sander GmbH and HSP Consulting AG
* Teaching at various universities and universities of applied sciences, such as the University of St. Gallen, Steinbeis University Berlin, and the University of Applied Sciences St. Gallen
* Lecturing in various MBA programs and Executive MBAs
* Expert opinions for bachelor's and master's theses as well as dissertations
* Board of directors' activities in several SMEs and start-ups
The core activity can be summarized as 'Controlling and Financial Consulting for Companies'.