ENKA İnşaat ve Sanayi A.Ş. is a Turkish engineering and construction company based in Istanbul. ENKA provides construction and engineering services through its subsidiaries in approximately 30 countries across the world. As of 2023, ENKA was listed third among the largest construction companies in Turkey. As of 2025, the number of countries in which ENKA had delivered projects increased to nearly 60, and the company ranked first among the largest Turkish construction companies. Wikipedia