Fermenstation Co., Ltd. is a Japanese company based in Iwate Prefecture, founded in 2009. The company specializes in consulting services focused on the utilization of unused biomass, ethanol production, and animal feed production. It also offers expertise in producing aromatic products, conducting feasibility studies, and engaging in co-development projects. Fermenstation provides education and information on brewing and fermentation technologies, alongside brand consulting, logo design, packaging design, website development, and public relations services. In addition to its consulting work, the company manufactures rice-based home ethanol, Komesshu air freshener, and Oshu soap, contributing to product development through the application of fermentation technology.