ATI Inc. is an American producer of specialty materials headquartered in Dallas, Texas. ATI produces metals including titanium and titanium alloys, nickel-based alloys and superalloys, stainless and specialty steels, zirconium, hafnium, and niobium, tungsten materials, forgings and castings. ATI's key markets are aerospace and defense, representing 68% of 2025 revenue, particularly commercial jet engines, specialty energy, oil & gas, chemical process industry, and medical. The company operates from four geographic hubs: Specialty Materials in North and South Carolina; Specialty Rolled Products in Pennsylvania; Forged Products in Wisconsin; and Specialty Alloys & Components in Oregon. In addition, it has plants in Alabama, Florida, New York, Washington, Poland and China.