Executive Summary The focus on the success factors for excellent performance has been growing in the last decades. One of the factors that is generally believed to have a positive relationship with organizational performance, is the internal communication process. Even though many practitioners and academics believe that there is a relationship between internal communication and organizational performance, there is little scientific evidence supporting this relationship. This study attempted to fill this gap in literature, by providing a definition on the concept of communication capability building and by empirically testing the existence of a relationship between communication capability building and organizational performance.