Although many enterprises have been pursuing a digital strategy to facilitate larger and more diverse ecosystems in recent years, there are few successful examples of conglomeration of digital ecosystems through aligning or combining diverse ecosystems. Hybrid organizing is a sound guiding theory that we adopt to examine the nature of conglomeration of digital ecosystems. We construct a theoretical lens aligning hybridization approaches with forms of ecosystems through an organization design based on IT/IS capabilities. Guided by this lens, we conduct an in-depth case study of a successful company in China. This study reveals a process model towards conglomeration of digital ecosystems, which consists of dismissing, separating, and cumulating phases. Our findings contribute to existing body of literature, in the field of digital ecosystems, hybrid organizing and IT/IS capabilities. Core firms of ecosystems can use the model to design and develop digital ecosystems with rational deliberation and planning.