About Us ​

Tubleks was established in 1980 by Esber Osman Tublek who had over 10 years of public accountancy experience and graduated in economics studies. In 1989, with the change of industry regulations, Esber became a certified public accountant, hence, Tubleks became one of the first CPA offices in Istanbul.

We are a team of professional Certified Public Accountants located in Istanbul who have acquired an in-depth, breadth and quality understanding of accounting in Turkey over the past 40 years. Tubleks provides accounting services ranging from bookkeeping to accounting advisory. The core services of our company includes tax declarations, bookkeeping as well as analysing financial statements. However, as an innovative CPA office, we are also specialising in services such as internal audit, tax advisory and accounting system setups.

Apart from bookkeeping and declaration services, Tubleks provides consultancy for Small and Medium sized enterprises to reduce their financial risks, help them to make insightful decisions and improve their relations with investors and banks.

Our Values
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Information Flow

All the information you require is being delivered on the right time. No surprises whatsoever. We provide step-by-step details for each process.


During all the steps of our services, we genuinely try to understand your needs and put ourselves to your shoes. We start working after we clarify the need with you.


You can track all the details of your services using digital channels. All the answers related with your questions for your processes are just a single click or message away.


Our initial responsibility is to protect our customers. It's our professional ethic rule to take our customer's side even during a conflict.

Meet Our Management Team
Kerem Tublek

Managing Partner/Technical Team

Özge Sinanoğlu

Business Development & Strategy