The core activity of CAS Treuhand GmbH encompasses the provision of services in the following areas:
* Accounting
* Controlling (planning models, analyses, reporting, key performance indicator systems)
* Human Resources
* Administration
* Consulting (particularly in business management issues)
* Ad-interim Management (assumption of leadership and specialist functions on a temporary basis)
The company positions itself as a sparring partner for its clients and strives to offer individual solutions tailored to the specific needs of its clients.