Isfahan is an industrial powerhouse with several massive national enterprises headquartered in the province.
* **Mobarakeh Steel Company:** The largest steel maker in the MENA region and one of Iran's most massive industrial complexes. * **Esfahan Steel Company (Zob Ahan):** The first and largest manufacturer of constructional steel products in Iran. * **HESA (Iran Aircraft Manufacturing Industrial Company):** A major aerospace and defense contractor based in Shahin Shahr. * **Isfahan Oil Refining Company:** A critical provider of petroleum products for central Iran. * **Polyacryl Iran Corporation:** A major player in Iran's petrochemical and textile sector.