Syntholene Energy Corp. is a next-generation clean energy company specializing in the production of high-performance, carbon-negative synthetic liquid fuels. Its primary focus is on aviation as the initial target market, developing ultrapure synthetic sustainable aviation fuel (eSAF) through a proprietary Hybrid Thermal Production System. This innovative technology integrates high-temperature solid oxide electrolysis with proven fuel synthesis reactors, utilizing low-cost thermal energy to reduce electricity consumption and achieve cost advantages over competing methods. The company's synthetic fuel platform uses renewable electricity, green hydrogen, and captured carbon to produce drop-in compatible fuels with significantly lower lifecycle emissions, suitable for existing aircraft and infrastructure. Founded in 2024 and headquartered in Chicago, Illinois, Syntholene Energy Corp. is commercializing this system, with plans for a demonstration facility leveraging geothermal resources. While aviation serves as the entry point, the platform extends to broader liquid fuel markets across transportation sectors, positioning it to address decarbonization challenges in hard-to-abate industries.