This publication is a cumulative presentation of the results of the survey about the internationalization activities and main drivers of the most export-active enterprises in Slovenia. Based on the sample of 108 usable responses, the first part of the publication presents the findings related to main internationalization categories in terms of operation modes, market selection, main barriers and motives for internationalization, industry and environments, branding, international orientation of top management, companies' strategic orientation, risk and innovation. The second part presents the basic relationships in terms of correlations between main internationalization determinants (brands, innovation, domestic and foreign industry characteristics, foreign environment, strategy, management international orientation and firm characteristics) and internationalizations outcomes (scale and scope of internationalization). Based on the results, different implications are provided.