Altaş Alüminyum İmalat Sanayi ve Ticaret A.Ş. is an Irish-Turkish joint venture aluminium extrusion company, with its headquarters located in Gebze - Kocaeli, Turkey; 15km from İstanbul and close to major ports and international airports.

Since its establishment in 1990, Altaş has always been an export-oriented company. While exporting 84% of its production to EU, USA and Canada, Altaş is also a long time Tier 2 supplier of Ford Otosan (Turkish subsidiary of Ford Motor Company), as well as several other major export companies in the domestic market.