Abstract: Systems and methods for demand-based marketplaces in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a demand-based marketplace server system includes a processor and a memory storing a demand-based marketplace application, wherein the demand-based marketplace application directs the processor to obtain product demand data, wherein the product demand data includes product keywords describing one or more products, identify product data corresponding to the product demand data, generate lead data based on the product demand data, wherein the lead data is targeted toward one or more seller systems associated with the identified product data, and transmit the lead data to the one or more seller systems.