
Multijurisdictional merger transactions and complex competition investigations are core elements of Kolcuoglu Demirkan Koçakli’s active practice. The team’s expertise spans all stages of investigations, including litigation and appeals in administrative courts when required. Competition law audit and compliance programmes are another method utilised by the group to support its clients. Umut Kolcuoğlu brings extensive sector-specific knowledge, frequently representing clients before the TCA in filings and investigations. Neyzar Ünübol‘s broad practice covers cartel and abuse of dominance investigations, as well as appeal proceedings. Ali Tunçsav and Esen Çakır both advise multinational and domestic clients on clearance processes.
Testimonials
Collated independently by Legal 500 research team.
‘As our legal advisor on many topics especially for Competition Law we are glad to state that when it comes to client satisfaction, Kolcuoglu Demirkan Kocakli Law Firm is highly on point in terms of prompt, effective and competent service.'
‘Team members of the Kolcuoglu Demirkan Kocakli Law Firm are reachable and well-engaged with our problems. They are aware of the needs of their clients, and they are focused on getting satisfactory conclusions with a realistic point of view.'
‘KDK’s Competition Law practice stands out for its combination of deep legal expertise, strategic commercial insight, and a highly responsive, client-focused approach.'
‘Working with Neyzar Ünübol and Ali Tunçsav was a good experience. Both were incredibly informative and engaged, quickly grasping the commercial aspects of our business and providing bespoke legal solutions that were practical and aligned with our needs.'
'Neyzar Ünübol's regulatory experience along with her team's clear communication and responsiveness, made the process smooth and efficient.'
Key clients
- Çiçeksepeti
- Elba Bant
- HDI Fiba Insurance
- Alterna Gıda
- MOL Chemical Tankers
- SonicWall
- Duracell
- Mitsui & Co
- Jacobs Douwe Egberts
- Boyner Group
- Gratis
- Hedef Filo
- QTerminals
- Talanx
- Vitol
- Mediterra Capital
- Turkven Private Equity
- Logo Software
- Upfield
Work highlights
- Represented the Turkish subsidiary of Duracell in an investigation initiated by the TCA.
- Represented QTerminals WL in an investigation initiated by the TCA.
- Advised Logo Software in the merger control filing regarding its acquisition of several IP rights.
Lawyers

Practice head
The lawyer(s) leading their teams.
Umut Kolcuoğlu, Neyzar Ünübol