Having started as a sole practitioner, Frank Heesen's team now includes five additional tax advisors across three locations (Mönchengladbach, Düsseldorf, Kempen). Innova serves both smaller clients and large corporations in the national and international sectors.

JRH Wirtschaftstreuhand advises owner-managed companies, family businesses, as well as private individuals on all tax law and business management issues.

Evelyn Klieber is a sole practitioner. In 2019, the tax advisor established her firm without clients or employees. Even today, the cryptocurrency expert manages her client base independently.

Digitalization concepts are not a new phenomenon for Frank Bischof. Through tools such as DATEV Unternehmen Online and DATEV Meine Steuern, his firm is already working digitally with their clients.