The future IoT ecosystem is set to bring forth a myriad of new technologies, devices, and communication protocols fighting for dominance, as established and new vendor entrants attempt to get a bigger slice of the market. This realization is bound to be followed by an explosion of data and analytics, much of which we are already experiencing but still have difficulty taking advantage of its full potential. IoT Data Exchange Services investigates how the realization of IoT data services may come to fruition. From the dynamics of data ownership and sharing, as well as technical challenges that need to be overcome, to opportunities for future data marketplaces and vendor archetypes; this report examines this next evolutionary step for the emerging IoT ecosystem.