The foreign market entry in venture firms is an important strategic decision in the process of sustainable growth. This study is to identify key factors to influence on the choice of foreign market entry mode in Korean venture firms. Based on foreign direct investment and resource-based theory, the key findings from binary logistic regression analysis of Korean international venture firms are as follow. First, top manager’s global orientation has a significant impacts on foreign direct investment, but their risk taking attitude has no a significant effect on entry mode decision. Second, from the perspective of strategic assets in venture organizations, the intellectual property such as patents and collaboration networks with external stakeholder have significantly positive impacts on foreign direct investment. On the other hand, R&D investment and marketing capabilities have no meaningful influences on decision-making for foreign market direct entry. It can be understood that intellectual property plays an important role in advancing into overseas markets from the point of view of firm specific advantages and internalization theory. Third, market competition and market uncertainty in external business environments have no meaningful influences on decision-making of foreign market entry modes. In overall, our research confirmed that CEO global orientation and the strategic assets of intellectual property play key roles in determining the overseas market entry modes in Korean venture firms. The results suggests that in deciding whether venture firms directly enter the overseas market, internal organizational factors such as CEO and strategic assets have more influences than external market factors. Our research provides Korean venture firms the practical implications in determining the foreign market entry modes for sustainable growth.