The results of the Istanbul Chamber of Industry's (ISO) "Turkey's Top 500 Industrial Enterprises 2017 Survey" were announced. Eren Holding maintained its position as one of Turkey's largest corporations with four companies again this year. For the second time, two of the Holding's companies successfully made the top 100 list in the same year.

Eren Enerji, ranked 36th on the list, maintaining its position as one of the largest independent private-sector electricity producers.

Modern Karton climbed to 59th place and retained first place in the paper and paper products manufacturing sector, while Modern Oluklu Ambalaj climbed to 122nd. Medcem Madencilik came in at number 430 on the list.