American Iron and Steel Institute

The American Iron and Steel Institute (AISI) is an organization and company located in Washington, D.C., Washington (state), Pittsburgh, and throughout the United States. Founded on January 1, 1855, AISI is currently active in the building materials, concrete, clean concrete, packaging and labeling, metal, and manufacturing industries. The organization operates under the abbreviated name "AISI."

AISI holds ownership of the Steelmark logo, and they have been assigned one patent in their history. As an active organization and company in the concrete, building materials, recycling, packaging and labeling, and metal manufacturing sectors, AISI contributes to these distinct industries in the United States.