Organizational Culture in firms or institutions is widely believed to affect organizational performance and the success of the information system (IS) implementation. This work in progress study investigates the relationships between organizational/corporate culture and management support with IS implementation success in selected organizations. Based on the organizational culture construct by Hofstede et al (1990) and the IS implementation success framework by Sharma and Yetton (2003), a structured questionnaire is developed and will be self administered to selected participants in the selected organizations. Specifically, the objective of the study is to examine the impact of organizational or corporate culture on IS implementation success in selected public and private organizations in Ethiopia. Relationship between management support and IS implementation success in organizations, which will be moderated by task interdependence, will also be examined. Thus the work in progress and future study of this paper contributes to the existing literature by providing a framework for IS implementation success in low-income countries like Ethiopia.