In this article, we investigate the development of a business ecosystem by focusing on the knowledge processes associated with the various phases of its lifecycle. Specifically, we ask: What knowledge processes are involved in the birth, expansion, leadership, and renewal phases of a business ecosystem, and how are these processes linked together to shape its lifecycle? To address this research question, we build on a case study of a nearfield communication (NFC) platform ecosystem, which is considered to be an innovative network centric organizational form. The findings reveal three knowledge processes: generation, application, and valorization. Together, these knowledge processes enable the performance of a variety of tasks and activities associated with the distinctive phases of a business ecosystem's lifecycle.