The typical process of forming a zaibatsu shows, as seen in an example of Katakura Zaibatsu, that entrepreneurs concentrate on a single business, such as the silk-reeling industry, and then expand the business through the imozuru system.
財閥形成の過程として、片倉財閥の様に製糸業に注力するなど、一つの事業に集中して投資し、芋づる式に発展する場合が多い。