This article uses the concept of entrepreneurial powers to discuss how and under what circumstances Brazil successfully accomplishes its goals in international crises. The concept of entrepreneurial power focuses on systematic evidence of middle-power behavior and its relation to foreign policy tools. Brazil resorts to three agency-based foreign policy tools that are the substance of its entrepreneurial power. These instruments are always mediated by a structural condition, the dominant power pivotal position in the crisis. This study applies qualitative comparative analysis methodology to 32 international crises since the early 1990s in which Brazil played a role. It finds that for regional crises, the use of only one agency-based tool is sufficient for success, regardless of the dominant power position; and for global crises, the use of only one agency-based tool is a necessary and sufficient condition for Brazil to accomplish its goals, despite the dominant power position on the issue.