This paper characterizes the heterogeneity of business chambers in the Argentine fishing industry. This activity is important not only because of the foreign currency it generates, but also because of the labor market associated with it. However, at present, little information is available on the business sector of this important economic activity. Moreover, current social science research on the Argentine fishing industry mainly deals with the role of employees, their trade associations, unions and labor conflicts. Methodologically, we worked with secondary sources and interviews with representatives of the business chambers to characterize the sector and to know how they are grouped and organized. In this way, the history and genesis of the different economic agents of the fishing activity at present is approached.