Viola Voigt contributes to the conception of Cultural Diversity Management, which is lagging behind in Germany compared to international standards. The study examines the instrument of intercultural mentoring in relation to multinational companies based in Germany. The guiding question is: To what extent can intercultural mentoring contribute in the long term to increasing cultural and ethnic diversity and transforming organizations in the context of an intercultural opening process, thereby reducing mechanisms of exclusion towards cultural and ethnic minorities?.