Company lists · Data refreshed November 2026

Top 25 Accounting companies based in Türkiye

This directory lists 701 accounting companies based in Türkiye, with 7,534 business contacts and 629 email addresses available as of November 2026. Istanbul is the single most-represented city among the companies on this list.

Accounting companies provide services such as bookkeeping, financial reporting, tax preparation, auditing, payroll support, and financial advisory work for businesses and other organizations. This list covers companies that provide accounting, bookkeeping, tax, audit, payroll, or related financial reporting services to business clients. Ranked by team size, largest first. Data current as of November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Nov 6, 2026 86% judged on-target in blind review
701Companies
7,534Contacts tracked
629Verified emails
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The 25 largest accounting companies based in Türkiye

Ranked by team size
Top 25 of 701 accounting companies based in Türkiye, ranked by team size, largest first. Data refreshed Nov 6, 2026. RevenueBase Smart Search rates how each company's information relates to accounting companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceİstanbul, TürkiyeHQ checked Nov 6, 2026501-1,000392 contacts →

Indirect evidence

“Sistem Group has been founded in 1996 and has more than 170 employees in the group offices in Ankara, İstanbul, Adana, Bursa, Gaziantep and İzmir.”

Source: RevenueBase Database · checked Nov 6, 2026
2Indirect evidenceAnkara, TürkiyeHQ checked Nov 6, 202610001+278 contacts →

Indirect evidence

“Çağdaş dünyanın vazgeçilmez unsurlarından biri olan mali müşavirlik mesleği 13 Haziran 1989 tarihinde yayınlanan 3568 sayılı Serbest Muhasebeci Mali Müşavirlik ve Yeminli Mali…”

Source: RevenueBase Database · checked Nov 6, 2026
3Indirect evidenceİstanbul, TürkiyeHQ checked Nov 6, 2026201-500211 contacts →

Indirect evidence

“GÜRELİ YEMİNLİ MALİ MÜŞAVİRLİK VE BAĞIMSIZ DENETİM HİZMETLERİ A.Ş.”

Source: RevenueBase Database · checked Nov 6, 2026
4Indirect evidenceİstanbul, TürkiyeHQ checked Nov 6, 202651-20093 contacts →

Indirect evidence

“Vergi, Denetim, Danışmanlık”

Source: RevenueBase Database · checked Nov 6, 2026
5Indirect evidenceİstanbul, TürkiyeHQ checked Nov 6, 202651-20079 contacts →

Indirect evidence

“AS/Nexia Turkey is a professional auditing and consultancy company serving the leading firms in Turkey by giving independent auditing, financial advisory,full…”

Source: RevenueBase Database · checked Nov 6, 2026
6Indirect evidenceSariyer, TürkiyeHQ checked Nov 6, 202651-20077 contacts →

Indirect evidence

“PKF Turkey was established in 2005 in Istanbul.”

Source: RevenueBase Database · checked Nov 6, 2026
7Indirect evidenceAnkara, TürkiyeHQ checked Nov 6, 202651-20062 contacts →

Indirect evidence

“Vezin Yeminli Mali Müşavirlik A.Ş, uzun yıllar kamudan sonra özel sektörde Yeminli Mali Müşavirlik ve üst düzey yöneticilik yapmış Hesap Uzmanları tarafından kurulmuş olup, şirket…”

Source: RevenueBase Database · checked Nov 6, 2026
8Indirect evidenceÇankaya, TürkiyeHQ checked Nov 6, 202651-20059 contacts →

Indirect evidence

“Since 1998, Güncel Group has delivered high-level independent audit, tax assurance, corporate valuation, and strategic consulting to publicly traded corporations, holdings…”

Source: RevenueBase Database · checked Nov 6, 2026
9Indirect evidenceBeykoz, TürkiyeHQ checked Nov 6, 202611-5040 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 6, 2026
10Indirect evidenceİzmir, TürkiyeHQ checked Nov 6, 202611-5036 contacts →

Indirect evidence

“Çözüm Ünlüer Bağımsız Denetim ve Yeminli Mali Müşavirlik A.Ş.| Nexia International Izmir Office | nexia.com • Bağımsız Denetim • Tam Tasdik Hizmeti • Katma Değer Vergisi İadesi •…”

Source: RevenueBase Database · checked Nov 6, 2026
11Indirect evidence19 Mayis, TürkiyeHQ checked Nov 6, 202651-20036 contacts →

Indirect evidence

“Kreston ATA International Audit Company has been operating in Turkey as a member of Kreston International.”

Source: RevenueBase Database · checked Nov 6, 2026
12Indirect evidenceİçerenköy, TürkiyeHQ checked Nov 6, 202651-20032 contacts →

Indirect evidence

“İtimat Global kurumsal hizmet ağının nüvesini oluşturan İtimat Bağımsız Denetim A.Ş.”

Source: RevenueBase Database · checked Nov 6, 2026
13Indirect evidenceKonak, TürkiyeHQ checked Nov 6, 202651-20029 contacts →

Indirect evidence

“BSN & CO 2004 yılında İzmir de kurulmuş olup, profesyonel kadrosu ile muhasebe, mali müşavirlik ve hukuki danışmanlık hizmeti vermektedir.”

Source: RevenueBase Database · checked Nov 6, 2026
14Indirect evidenceBakırköy, TürkiyeHQ checked Nov 6, 202611-5027 contacts →

Indirect evidence

“Yeminli Mali Müşavirliğimiz ulusal ve uluslararası firmalara vergi, finans ve yönetim danışmanlığı hizmetleri vermekte olup, ayrıca yasaların yeminli mali müşavirlere verdiği…”

Source: RevenueBase Database · checked Nov 6, 2026
15Indirect evidenceİstanbul, TürkiyeHQ checked Nov 6, 202611-5027 contacts →

Indirect evidence

“Yerli ve Yabancı Şirketlere İlişkin Finansal Danışmanlık, Mali Müşavirlik, Sosyal Güvenlik Hizmetleri, Yabancı yatırımcı İkamet ve çalışma izin çözümleri, Start Up Girişimcilik…”

Source: RevenueBase Database · checked Nov 6, 2026
16Indirect evidenceKadıköy, TürkiyeHQ checked Nov 6, 202611-5024 contacts →

Indirect evidence

“Çeşitli sektörlerde yer alan şirketlerin muhasebe, finans, denetim ve insan kaynakları departmanlarında çalışmış, 2004 yılından itibaren özellikle Teknoloji Geliştirme…”

Source: RevenueBase Database · checked Nov 6, 2026
17Indirect evidenceİstanbul, TürkiyeHQ checked Nov 6, 202651-20023 contacts →

Indirect evidence

“Granit 1991 yılında Yönetim Danışmanlığı alanında faaliyetlerine başlayan şirketimiz, 1998 yılından itibaren 3568 sayılı yasa kapsamında tescil edilen GRANİT SERBEST MUHASEBECİ…”

Source: RevenueBase Database · checked Nov 6, 2026
18Indirect evidenceAnkara, TürkiyeHQ checked Nov 6, 202611-5023 contacts →

Indirect evidence

“Kapsam Denetim Serbest Muhasebeci Mali Müşavirlik Ltd.”

Source: RevenueBase Database · checked Nov 6, 2026
19Indirect evidenceŞişli, TürkiyeHQ checked Nov 6, 202651-20021 contacts →

Indirect evidence

“Member of ECOVIS International.”

Source: RevenueBase Database · checked Nov 6, 2026
20Indirect evidenceİçerenköy, TürkiyeHQ checked Nov 6, 20261-1019 contacts →

Indirect evidence

“We are a medium-sized auditing and advisory firm.”

Source: RevenueBase Database · checked Nov 6, 2026
21Indirect evidenceİstanbul, TürkiyeHQ checked Nov 6, 202611-5019 contacts →

Indirect evidence

“Türkiye'de 2003 yılında başlattığımız faaliyetlerimize, bugün İstanbul'da bulunan merkez ofisimizde, konusunda deneyimli ve uzmanlaşmış kadromuzla, sektör odaklı ve müşterilerine…”

Source: RevenueBase Database · checked Nov 6, 2026
22Indirect evidenceÇankaya, TürkiyeHQ checked Nov 6, 202651-20016 contacts →

Indirect evidence

“Today, in addition to fast developments in science and technology, international economic, social, and politics relationships have been living outstanding changes.”

Source: RevenueBase Database · checked Nov 6, 2026
23Strong evidenceİstanbul, TürkiyeHQ checked Nov 6, 202611-5016 contacts →

Strong evidence

“DENETIM TURKEY, which has been established for the purposes of the development of the knowledge and application of modern business administration in the areas of Tax, Accounting…”

Source: RevenueBase Database · checked Nov 6, 2026
24Indirect evidenceAnkara, TürkiyeHQ checked Nov 6, 202611-5016 contacts →

Indirect evidence

“Accounthink (Mali Bakış is a professional outsourcing and advisory company based in Ankara since 23.09.2010 with professional team specialized in foreign companies with “big four”…”

Source: RevenueBase Database · checked Nov 6, 2026
25Strong evidenceAtasehir, TürkiyeHQ checked Nov 6, 202611-5015 contacts →

Strong evidence

“Andersen in Turkey: Trusted Tax, Audit & Advisory for Confident Growth Andersen in Turkey helps Turkish and international businesses navigate tax, audit, accounting, and advisory…”

Source: RevenueBase Database · checked Nov 6, 2026

Showing 25 of 701 accounting companies based in Türkiye

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Accounting companies based in Türkiye at a glance

As of Nov 6, 2026
8.3%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
30.4%Largest-city concentration · Istanbul
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
408
11-50
232
51-200
36
201-500
9
501-1,000
1
1,001-5,000
1
5,001-10,000
2
10001+
3

Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 701 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among accounting companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Türkiye whose own description of what they do matches “accounting companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names accounting companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among accounting companies, and records with no verified work email. Companies headquartered outside Türkiye are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 629 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many accounting companies are in the directory?

The directory contains 701 accounting companies based in Türkiye as of November 2026.

How can I find contacts at accounting companies?

The directory includes 7,534 business contacts and 629 email addresses associated with the listed accounting companies.

Which city has the most accounting companies on the list?

Istanbul is the single most-represented city among the accounting companies on this list.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.