Mesoporous carbons (MPCs) and other advanced carbons are gaining significant traction within the fuel cell catalyst community. These engineered carbons, featuring tunable mesoporous architectures, offer a compelling opportunity to enhance catalyst performance and durability. In particular, tailored supports can deliver high mass activity and improved performance in the mass-transport regime. At the same time, a growing number of suppliers—including start-ups—are entering the market; however, the supply chain remains underdeveloped and exposed to risk, and only a limited number of products are expected to qualify for 3rd-generation launches. In this study, we present the results of a market screening of MPCs and advanced carbons for fuel cell catalyst applications, based on a combined technical evaluation and supply-chain risk assessment, and provide an outlook on future developments.