This chapter underscores the importance of digital platforms in the provision of digital mobility services. It systematically categorises these platforms according to the legal relationships established with them and various stakeholders. The chapter discusses the legal issues that arise from the complex nature of these relationships. Moreover, it addresses the legal challenges associated with the market power exerted by these platforms. The implications of the Digital Markets Act are also evaluated, specifically concerning its function in delineating the fundamental legal interactions between the enforcement authorities of EU competition law and regulated enterprises. Furthermore, the chapter investigates how the Digital Services Act influences digital platforms.