District heating is a system for distributing heat from a central source, such as a boiler plant or a combined heat and power plant, to multiple industries, buildings or homes within a defined geographic area. This system can use different energy sources, including fossil fuels, biomass, solar thermal, and geothermal energy, to provide customers with heating, hot water, and other services. In light of these benefits, this work aims to present a thorough study of a Greek industrial park case. The work is supported by the EMB3Rs platform that allows performing a feasibility analysis of the system. In particular, this work explores the market module of this platform to provide a detailed market analysis of energy exchange within the Greek industrial park. The results pinpoint the effectiveness of the platform in simulating different market designs, centralized and decentralized market designs, making it clear the potential benefit the sources in the test case may achieve by engaging in a market environment. Different options for market clearing are considered in the study, for instance, including CO2 signals to reach carbon neutrality or community preferences to increase community autonomy. One can conclude that excess heat from existing sources is enough to cover other industries/facilities’ heat demand, leading to environmental benefits as well as a fairer financial profits allocation. This work is supported by the European Union’s Horizon 2020 through the EU Framework Program for Research and Innovation, within the EMB3Rs project under agreement No. 847121.