The objective of this research is to study and understand how international entrepreneurial orientation, market orientation and marketing capabilities influence the performance of international new ventures (INV). For this purpose, a quantitative analysis by the structural equations method is used with 131 Tunisian international new ventures. The results show that international entrepreneurial orientation and market orientation are positively related to the performance of Tunisian international new ventures and the interaction between these two orientations generates a positive effect on marketing capabilities and subsequently on the international performance. JEL Codes: L25, O19, M3