Empirical research on the maturity of retained IT organizations has remained scarce. IS literature shows that studies do not investigate the effect of organizational culture determinants on the relationship with the growth stage of an retained organization. The aim of this paper is to examine the relationship between organizational culture determinants and retained organizations stages of growth. Data from three case studies was collected and the Social Exchange Theory is used to understand the degree of interaction between the staff of retained organizations. Our analysis identified that culture determinants form a predictable pattern with the growth stage of a retained organization. Specifically, the culture determinants Management and Focus fit with their assumed growth stage in all three case studies. This might indicate that both determinants are interrelated as executive management of a firm has to develop a clear focus to achieve their IT mission and goals. Moreover, from an individual level, the results show that the degree of social interaction between staff is influenced by the perception of IT in the organization.