Ms Utku Cosar > Cosar Avukatlik Burosu > Istanbul, Turkey > Lawyer Profile

Cosar Avukatlik Burosu

Work Department

Dispute Resolution.


As a partner specialising in dispute resolution, Ms. Cosar has extensive experience in high profile arbitrations representing public and private clients before ICC, ICSID, LCIA, SCAI and ICDR-AAA tribunals. Her recent experience includes representing a pension fund in an ICC arbitration involving a post-acquisition dispute and related damages claims. She represented the state in three ICSID arbitrations brought under the Energy Charter Treaty. In addition, she has recently acted as counsel in various ICC arbitrations, including a construction dispute for delay and damages claims, and two energy projects involving lost profit claims. Ms. Cosar is also an expert litigator, skilled at representing foreign and Turkish clients before Turkish courts. Her recent litigation experience includes representation of a major international company in the energy sector regarding its power plant investment and representation of a leading bank involving damages claims arising out of fraudulent transactions.


Ms. Cosar is admitted in New York and Turkey. She serves on the editorial board of ICC Dispute Resolution Journal, Dispute Resolution International, the journal of the Dispute Resolution Section of the IBA and the ICCA Publications Advisory Board.


English, Turkish.


American Bar Association; International Bar Association; New York State Bar Association; International Council for Commercial Arbitration; London Court of International Arbitration European Users’ Council; Swiss Arbitration Association; Istanbul Bar Association.


Marmara University Law School (1996); Georgetown University (1998 Master of Law and 1999 Master of International Legal Studies).

Lawyer Rankings

Turkey > Dispute resolution

(Leading individuals)

Utku CoşarCosar Avukatlik Burosu

Cosar Avukatlik Burosu is a specialist disputes firm, entrusted by major international companies and state bodies to handle large-scale international arbitration and litigation. Practice head Utku Coşar is a ‘stand out’ practitioner with a strong reputation in all forms of dispute resolution, regularly litigating before international courts and contributing to academic coverage. She is supported by Suat Sari, another highly experienced litigator with a wide range of expertise.