Information systems (IS) strategizing is particularly challenging for established organizations because of their historical conditions. The question of how established organizations can effectively manage their historical conditions in IS strategizing remains under-explored. To address this question, we conducted a case study tracing the history (1960–2020) of an established organization in the building and construction industry. Through the analysis, we found four systems: accounting management system, business communication system, knowledge management system, and community collaboration system, as the historical conditions that formed an IS imprint, which was later managed and reproduced during IS strategizing. Using the imprinting lens, we developed an understanding of: (1) the formation of the IS imprint at the organizational foundation; and (2) the reproduction of the IS imprint, considering imprint-as-resource and imprint-as-constraint during IS strategizing. We contribute to the literature by providing an understanding of how historical conditions inform IS strategizing in the long term and by applying the imprinting lens to uncover the process through which an IS imprint is strategically managed and reproduced beyond the founding phase. The insights developed from this study are transferable to similar organizational contexts for managing historical conditions in IS strategizing.