Maxco, Inc., through its subsidiary, Atmosphere Annealing, Inc., operates in the heat treating business. It provides metal heat treating, phosphate coating, and bar shearing and sawing services to the cold forming, stamping, forging, and casting industries. The company sells its services primarily to automotive companies and automotive suppliers through its own sales personnel and outside sales representatives. Maxco was incorporated in 1946 and is based in Lansing, Michigan.