One of the lesser-acknowledged conclusions from analyses of the third wave of democratization relates to the importance of conservatives to democratic consolidation. Yet we know very little about the way that such interests are incorporated into the formal, institutional arena of parties and elections – especially as relates to business interests. This is true in spite of a clear, cross-regional rise in the presence of entrepreneurs themselves in politics. This article generates and evaluates a set of expectations for the political behavior of business interests. I focus my empirical attention on Mexico, where such interests are historically speaking very well organized internally, and analyze the incorporation of business-association members into the parliamentary delegation of Mexico’s three major political parties. I conclude by considering where we might look for the political mobilization of business interests in the interest of establishing a research agenda for the future.