About Us
Beşiktaş / İstanbul is where our accountancy firm is based. We advise companies, entrepreneurs and self-employed professionals on accounting, tax and financial legislation.
Who we are
GAZİBEY DENETİM MUHASEBE VE MALİ MÜŞAVİRLİK is a firm that treats public accountancy as a working relationship, not a paperwork exercise. Filing returns is only the visible part of the job; the real value lies in the client understanding their own numbers and being able to base decisions on them.
That is why two things shape how we work: timely information and plain language. We follow the legislation and pass on the part that concerns you in clear terms. When a deadline approaches or we see a risk, you hear it from us before you ask.
We serve a broad range of clients, from small and medium-sized companies to large ones and newly founded start-ups, and set up a way of working that fits each of them. We operate as an institution and commit to the same standard of service for every client.
Our Mission and Vision
Our mission
To run our clients' financial processes in full compliance, on time and without gaps; and to inform them of obligations and risks in advance so that their finances hold no surprises.
To practise an advisory approach that does not merely record the numbers but explains what they mean.
Our vision
To be the trusted partner our clients turn to first on financial matters, and consult before making decisions.
To bring technology and digital tools into professional practice, making our service faster, more transparent and reachable at any time.
Our founder
Abdulkadir ÖZTÜRK
Certified Public Accountant
He founded Gazibey Denetim on the conviction that public accountancy is more than tax returns and ledgers. He made it the firm's founding principle to be a reachable counterpart for every question a client faces, and to explain technical matters in language anyone can follow.
All professional work of our firm is carried out under his responsibility and supervision.
How We Work
We build our relationship with every client on these six principles.
Quality That Sets Us Apart
We put client satisfaction first by delivering service that is both distinctive and of high quality.
Understanding Your Needs
Every business differs in scale and sector; we analyse what you need and build the service to match.
Continuous Improvement
Through ongoing training and development, we adapt quickly to changing legislation.
A Consistent Routine
From document flow to reporting, we set up an order that runs to the same rhythm every month.
We Stay in Touch
We answer your questions quickly and keep you informed of developments before you ask.
Following the Legislation
We track developments in financial legislation and explain the part that affects you in clear terms.
What our clients say
Reviews left on our Google business profile, translated from the Turkish originals. Only the longest have been shortened at a sentence break; the originals can be read on our Google profile.
Our sole proprietorship was set up before we finished our coffee. Thank you very much.
If you dread the tax office, it is worth getting in touch with Mr Abdulkadir. He explains every situation step by step, always looks for a solution, and gives support on financial matters in language that is both detailed and plain.
Gazibey Denetim's reply
Your comments matter to us. Thank you.
If you are looking for a public accountant, Gazibey Denetim is a firm you will be happy with — the best quality of service, well equipped and professional in its approach. Thank you for answering all our questions quickly and for keeping our affairs running as they should.
Gazibey Denetim's reply
Thank you. Your reviews are very valuable to us.
As a law office, we reduced our workload by outsourcing our accounting to Gazibey Denetim. We thank them.
They followed up the necessary procedures on social security incentives and guided us through this difficult subject; we thank them.
I thank Mr Abdulkadir for providing us with the information we needed about the support available to young entrepreneurs.
Gazibey Denetim's reply
Thank you for your kind review.
You provided an extremely professional service. Thank you for the information you gave on tax matters. You can consult them about your commercial affairs with complete peace of mind.
Gazibey Denetim's reply
Thank you for your kind words.
Mr Abdülkadir's attention, care and professionalism saved me from a serious loss.
Gazibey Denetim's reply
Thank you, counsel. Your review matters to us.
A place where you can get professional service on tax and social security legislation. That Mr Abdulkadir comes from the practical side of the work is a further advantage. They came back to us quickly on everything we wondered about.
We work with them on our newly formed company. They carry out the work professionally and provide support on time. A public accountancy office you can rely on. I recommend them without hesitation.
They handle our formation procedures and our ongoing accounting with care. Their quick replies are a great thing for our company.
The company representative guided us quickly and reliably in the shortest time. We were very pleased with how clear and practical they made things. We continue to work together.
If you are looking for a partner on financial matters, you are in the right place.
We thank Mr Abdulkadir very much for helping with everything about our newly founded company and for patiently answering all our questions, relevant or not.
Gazibey Denetim's reply
Thank you very much.
We completed our company formation procedures easily. Thank you for their attention and care.
We received very quick replies to our accounting questions. We have started working together on our accounting. Thank you.
We opened our company without a hitch. The procedures were handled quickly and with great care. Thank you very much.
I am very pleased with the service. A professional team that enjoys its work and delivers on time.
The reviews were taken from our Google business profile in September 2026, and the dates are relative to that time. You can see all current reviews on our Google profile.
Let's meet
Tell us about your business and let's discuss together what kind of working arrangement we can set up for you.