1. redirect) (from Aluminum Company of America) is the world's third largest producer of aluminum, behind Rio Tinto Alcan and Rusal. From its operational headquarters in Pittsburgh, Pennsylvania, Alcoa conducts operations in 31 countries. Alcoa is a world leader in the production and management of primary aluminum, fabricated aluminum, and alumina combined, through its active and growing participation in all major aspects of the industry: technology, mining,

Oltre che prodotti di alluminio, Alcoa produce e commercializza beni di consumo con i seguenti marchi: Reynolds Wrap (fogli di allumnio ed involucri), Baco (involucri per la casa), e Alcoa (ruote). Produce inoltre chiusure, sistemi di fissaggio, pezzi fusi e sistemi elettrici di distribuzione per automobili.[2]

Alcoa werd in 1888 in Pittsburgh opgericht door Charles Martin Hall, en heette destijds Pittsburgh Reduction Company . In 1907 werd de bedrijfsnaam gewijzigd in Aluminum Company of America. Sinds 1999 wordt de naam Alcoa gebruikt. In 2005 had het bedrijf meer dan 130.000 werknemers in 43 landen.