1.

Yeniben.com

2.

Yesil Science

3.

Yildiz Technical University

4.

Yildiz Ventures

5.

Yoghurt Network

6.

Yuncey Technology Design Systems 1981

7.

Yunel

8.

Yör Group

9.

Yörsan

10.

ZipPrime

11.

Zuber

12.

Zurich Sigorta 1873