This study analysed the nexus among ICT support for core competencies, competitive advantage and firm performance using data obtained from managers of firms in Harare, Zimbabwe. The qualitative phenomenological approach focused on the manufacturing and service sub-sectors that informed the analysis. The study used purposive sampling to select a sample of 10 participants, five business managers and five ICT experts. In-depth interviews with chosen ICT experts from business organisations in Harare, Zimbabwe, were conducted to gather qualitative data. The study's findings were from using within-case and cross-case qualitative data analysis. Key results from the study indicate that ICT support for management talent is perceived to impact business performance and competitive advantage positively. ICT support for core competencies gives businesses a competitive advantage that positively impacts operational performance. When ICT investments combine with ICT management skills, a company's value maximises. For ICT-enabled core competencies to influence firm performance, firms need complementary managerial and strategic capabilities. This study is distinctive because it addresses the dynamic organisational capabilities and resource-based perspective as the base theories. The methodology goes against the innovation adoption theories of comparable earlier studies on ICT acceptability. Thus, this study contributes to the growing body of ICT literature by demonstrating that ICT-enabled core competencies are insufficient to establish and maintain a competitive advantage and singularly influence firm performance. It made it even more essential for a firm to consider how to meet better customer needs and capture value by having a well-thought-out ICT-embedded business model, business strategy, and innovation alignment