+90 212 246 11 19



Öncel, Aydın & Uygun Attorney Partnership is a team of highly dedicated lawyers who are ready to take on the toughest legal challenges in Turkey and around the world, serving clients with top quality legal services.

Our firm was originally founded in 1973 by Att. E. Sefa Öncel and has been serving local and international clients uninterruptedly for almost 50 years. Coming to its current structure with the addition of second-generation partners around 2010, our firm has ever since shifted its focus more on the international arena and significantly expanded its client base in the last decade.

Always having a selected team of the brightest minds that benefit from decades of know-how, our firm provides services on a global standard while being able to maintain direct partner involvement and flexibility to client demands in particular with our cost-sensitive pricing approach. 

Our firm offers one-stop shop services to international clients doing business in Turkey, helping them from the investment stage until their exit, both in terms of complex transaction and day-to-day operations.

We are fluent and provide services in English and Turkish. We are highly experienced in working in other jurisdictions benefiting from our network of solution providers in other countries; therefore, our team of international lawyers are ready to take on or be a part of multi-jurisdictional transactions.

Most of our legal team has studied in prominent universities around the world including U.S.A. and U.K. Our partner Att. Erman Öncel and one of our counsels Att. A. Tuğçe Duman are also members of the New York State Bar. 

Our partner Att. A. Buğra Aydın is currently a lecturer of commercial law at Istanbul Medipol University School of Law.

Our firm is selected as one of the leading Turkish law firms in employment law by Legal500 for the 7th time consecutively since 2016.

All information contained on this website have been provided for information purposes only and do not constitute advertisement, proposal or legal advice of any kind. All information may be subject to change without notice. Please contact us for a professional advice.
(+90) 212 246 11 19
(+90) 212 231 42 17
Maslak Mah. Ahi Evran Cad.
Polaris Plaza No:21 Kat:15 D:63
Sarıyer-Istanbul, Turkey