Nacco Industries, Inc.
A Cleveland-based holding company whose name, NACCO, comes from its longtime subsidiary the North American Coal Corporation. Its roots go back to 1913, when Frank E. Taplin founded the Cleveland & Western Coal Company, which was renamed in 1925. Today it mines coal under long-term contracts for power plants and provides contract mining for limestone, lithium, and other minerals. Fun quirk: for decades it also owned Hamilton Beach, the blender-and-toaster maker, before spinning that housewares business off in 2017.