Born in Bursa in 1951, Orhan Sabuncu completed his elementary and middle school education there. In 1970, he started studying Mechanical Engineering at Yıldız Technical University and, upon graduating in 1975, later worked at an engineering company in Istanbul for two years. After completing his military service, he started working as a construction engineer at Teknik Malzeme in Bursa in 1978 and was appointed as General Manager in 1985. In 2002, he was appointed as the chairman of Orhan Holding's automotive seating group and he still serves as a Board Member at Holding companies.

Between the years 2006 and 2010, Mr. Sabuncu was a Board Member of TAYSAD (Association of Automotive Parts and Components Manufacturers) and OIB (Automotive Industry Exporters' Association). Between 2010 – 2018, he served as the Chairman of OIB and between 2016 – 2018, he was a Member of the Board of DEIK (Foreign Economic Relations Board). Since 2018, Mr. Sabuncu has been serving as Vice Chairman of the Board of OIB and since June 2018 he has been serving as a Board Member of TIM (Turkish Exporters Assembly). He is competent in English.