Dayton & Michigan Railroad Co. (DMRR) operates a short-line railroad in Ohio, providing freight transportation services including rail service, intermodal container and trailer transport, rail-to-truck transfers, and bulk commodity operations. The company maintains its primary focus on line-haul railroad activities, serving industrial customers within the Midwest United States. Founded on March 5, 1851, and headquartered at 500 Water Street, 15th Floor, Jacksonville, FL 32202, it traces its origins to constructing and operating rail lines from Dayton, Ohio, toward the Ohio-Michigan state line in the direction of Detroit, Michigan. Geographically, its operations center on Ohio routes historically linked to Dayton, with no active expansions or partnerships reported in 2024 or 2025. The company trades on OTC Markets under DMRR and related preferred securities (DMRRP), emphasizing steady freight hauling without recent acquisitions, funding rounds, new product launches, or strategic reorganizations.