Turkish-German Business Law Joint LL.M. program has been established through the collaboration of Istanbul Bilgi University Law Faculty and Cologne University law Faculty and accepts applications of students since 2010. This program which is the first joint diploma LL.M. held both in German and Turkish was accredited in Germany in the year 2009 and has been also approved by the Turkish High Education Board. The program aims to equip its graduates for international jobs in the area of business law.

If a candidate does not have any language proficiency certificate, an internal exam of the university is arrangeable. The courses offered are conducted in Turkish at Istanbul Bilgi University and in German at Cologne University. The courses in the fall semester are held at Cologne University, and the courses in the spring semester are held at Istanbul Bilgi University.