Rahmi Mustafa Koç

Demir Export AS engages in iron ore mining operations. The firm also operates coal, gold and related mines. Its Activities include operations, exploration and project and business development The company was founded in 1957 and is headquartered in Ankara, Turkey.

SETUR Servis Turistik AS provides tourism activities and duty free services. Its products include duty free cosmetics, tobacco, foreign / local drinks, ready wear, accessories, electronics and textiles. It also offers services such as domestic and international flight ticket reservations, group and individual travel organizations, cruises, study abroad services, congress and seminar organizations, dealer meetings, helicopter and air taxi operations, all kinds of vehicle and boat rentals, incoming, and operation of duty free shops. The company was founded in 1964 and is headquartered in Istanbul, Turkey.

Part of Koç Holding A.S., Mogaz Petrol Gazlari AS is a Turkish company that operates in the energy sector. The private company is based in Istanbul, Turkey.

Ark Insaat Sanayi ve Ticaret AS engages in the provision of construction services. Its projects include civil engineering constructions, industrial facilities, residence, shopping and office buildings, as well as restoration and decoration works. The company was founded in 1965 and is headquartered in Ankara, Turkey.

Part of Ford Otomotiv Sanayi AS, Ford Otosan Sancaktepe Ar-Ge Merkezi is a Turkish company that provides architectural services. The private company is based in Istanbul, Turkey.

Turkish Cultural Foundation promotes Turkish culture and heritage by supporting education, research, documentation, and publications. The non-profit company is based in Washington. The American company was founded by Mehmet N. Erten and Rahmi Mustafa Koç.

Part of Koç Holding A.S., Tüpras Trading UK is a Turkish company that was founded in 2018. The private company is based in Körfez, Turkey. Tüpras Trading UK procures and refines crude oil, petroleum product & chemicals.

Part of Koç Holding A.S., WAT Motor Sanayi ve Ticaret AS is a Turkish company based in Tekirdag, Turkey. The private company produces electric motors, including three-phase aluminum motors, single-phase motors, fan motors, and servo systems. The company also offers customer-specific solutions for various applications, including water and wastewater management, agriculture and industrial machines, material transport and lifting, and the maritime industry. The company was founded in 1965, and Cemal Seref Oguzhan Özturk has been the CEO since 2018. In 2021, the company was acquired by Koç Holding A.S. from Arçelik AS for $2.01 million.