After studying political science, philosophy, finance and management, Franck Kosakevitch began his career as a project manager at the Compagnie Financière de Suez during its privatization. He then joined American groups as Division Director (Syscall), Consulting Director and Key Accounts Manager (Matrixx Marketing). He was in charge of managing the multi-channel transformation of banking groups and relations with major consulting firms. After  participating in the marketing transformation of companies, he joined The Marketing Group as Development Director. In 2000, he decided to create his own consulting company with clients such as EDF, Natixis, ADP, SNCF.