Tekfen Holding AS is an investment company, which engages in the contracting, agricultural service, and real estate development industries. It operates through the following segments: Engineering and Contracting, Chemical Industry, Agricultural Production, Service and Investment. Engineering and Contracting segment undertakes infrastructure and industrial construction projects in Turkey, Azerbaijan, Kazakhstan, Saudi Arabia, Qatar and Iraq. The Agricultural Industry segment continues its activities in the the production and sale of mineral fertilizers as well as special water soluble fertilizers and organic/organomineral fertilizers. Operations of Investment segment mainly comprise of Tekfen Ventures’ investments in innovation-creating initiatives and holding operations. The company was founded by Feyyaz Berker, Ali Nihat Gökyigit and Necati Akcaglilar in 1956 and is headquartered in Istanbul, Turkey.