Platforms and business models have been a subject of academic analysis and practical application for years. As digital platforms are significantly different due to an intervened and complex nature, typologies, fundamental concepts, and business models have been studied from separated perspectives. This paper reviews the platform and business model literature using a systematic literature review that identifies concepts underlying digital platforms. Henceforward, this research develops a working definition and links 109 business model components to 24 digital platform concepts to figure out what components constitute digital platforms' business models. Furthermore, the analysis shows that several digital platform concepts were deficient or not represented by business model components indicating the need for future research. The study concludes and discusses theoretical and practical implications, suggests future research areas, and marks its limitations.