The İstanbul Chamber of Industry (İSO) has published its 2019 list of Turkey’s five hundred biggest industrial concerns based on the results of its annually-conducted survey. Toros Tarım, a pioneering leader of Turkey’s agri-industry sector, ranked 52nd among the country’s top 500 firms in 2019, 18 places higher than its position in the 2018 list. At the head of the İSO’s 2019 list was Türkiye Petrol Rafinerileri AŞ (TÜPRAŞ), which was followed in turn by Ford and Toyota.