The goal of the study was to assess how Indonesian ICT companies that provide wholesale carrier services can manage the external business environment and improve their performance with the help of their co-creation strategy and corporate skills. Using partial quadratic structural equation modeling (PLS-SEM) to evaluate the research hypothesis, the study concentrated on 45 Indonesian ICT companies offering wholesale carrier services. The outcomes demonstrated how the company's co-creation strategy and capabilities increased its effectiveness and greatly improved its capacity to negotiate the external business climate. According to these results, enhancing organizational capacities and putting co-creation techniques into practice should be Indonesian ICT enterprises' top priorities if they want to improve performance and successfully navigate the external business environment. Involving consumers, users, or other stakeholders in the design and development of digital goods or services is known as the co-creation strategy. It can happen in a lot of different ways, such hackathons, online platforms, workshops, or prototype sessions.