This paper is an anthropological attempt to reinstate the importance of family and kinship studies in the study of business culture. The field of company studies has long been dominated by two major disciplines, anthropology and management, leading to the evolution of ”business anthropology” and ”management studies.” The relationships between these two disciplines are marked by conflicts or disagreements over method, methodology and epistemology.In his attempt to trace a movement away from conflicts and disagreements between the two disciplines, the author aims to draw our attentions to the importance of kinship in business culture in contemporary Japan, especially in view of the fact that many medium-to-large sized businesses in Japan are family business.Through the case studies from Japan, the author demonstrates ethnographically how kinship relations or principles are strategically applied among non-relatives in Japanese corporations with a final aim to ensure the continuity of the corporation.