The purpose of this paper is to bring to our attention the important role of women in wholesale international commerce in eighteenth century northern Germany, using examples from Stralsund as a case study. (Stralsund, a port-city formerly in the Hanse, was at that time the capital of Swedish Pomerania and had a population, including garrison, of some 14,000 around 1800; it was an economic center of regional importance, specializing in the production of malt and the export of grain to Sweden and Western Europe). After sketching a social and economic profile of Stralsund's female merchants ca. 1750–1830, I will discuss the crucial issue of control, i.e., to what extent and how these women were able to operate independently within a political and legal system that favored men. In my conclusion, I suggest that women left, or were forced out of, the wholesale trade around 1850 as a result of political changes and a shift in the meaning of the concept of Bürger, rather than as a result of industrialization or market expansion. Throughout, I consider whether my observations about female merchants in Stralsund have any wider validity by comparing them with research on the commerce of other ports in Northern Europe and in North America.