Company lists · Data refreshed September 2026

Top 25 Internal audit service providers based in Türkiye

RevenueBase identified 142 company matches for internal audit service providers associated with Türkiye as of September 2026 and tracks 816 professional contacts across them, including 117 with verified work emails. Istanbul is the largest hub.

This list covers company matches for internal audit service providers associated with Türkiye, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
142Companies
816Contacts tracked
117Verified emails
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The 25 largest internal audit service providers based in Türkiye

Ranked by team size
Top 25 of 142 company matches for internal audit service providers based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchÇankaya, TürkiyeHQ recorded Sep 20, 202651-20055 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBeykoz, TürkiyeHQ recorded Sep 20, 202611-5038 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchAnkara, TürkiyeHQ recorded Sep 20, 202651-20037 contacts →

Exact match

“Değer katan bir hizmet sunmak ve bir işi büyütmek sıradan bir iş anlayışı ile gerçekleştirilemez.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchOsmangazi, TürkiyeHQ recorded Sep 20, 202651-20028 contacts →

Exact match

“Bağımsız Denetim Nexia Bursa; Kadrosundaki tecrübeli denetçilerden oluşan denetim ekipleriyle, Sermaye Piyasası Mevzuatına tabi kurum ve kuruluşların, Enerji Piyasasında faaliyet…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchIstanbul, TürkiyeHQ recorded Sep 20, 20261-1019 contacts →

Exact match

“Teolupus Denetim Güvence Hizmetleri ve Yönetim Danışmanlığı, iç denetim, kurumsal risk yönetimi ve iç kontrol, süreç iyileştirme, insan kaynakları hizmetleri, bayii (franchise)…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchAnkara, TürkiyeHQ recorded Sep 20, 202651-20015 contacts →

Exact match

“Note Office International Independent Audit Consultancy and YMM Inc, established in 2014, is headquartered in Ankara and there are liaison offices in Istanbul, Izmir and Konya…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchSisli, TürkiyeHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“Edit Bağımsız Denetim, KGK ve SPK tarafından yetkilendirilmiş bağımsız denetim ve güvence hizmetleri sunan bir kuruluştur.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchİstanbul, TürkiyeHQ recorded Sep 20, 202611-5014 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchBeşiktaş, TürkiyeHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Kaya & Bekler, üretim ve hizmet sektörleri başta olmak üzere, çeşitli kurumsal sektör işletmelerine bağımsız denetim, vergi danışmanlığı, tam tasdik, muhasebe ve hukuki…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSariyer, TürkiyeHQ recorded Sep 20, 202611-5010 contacts →

Exact match

“Akademik Bağımsız Denetim A.Ş.” 13 Aralık 1994 yılında Bağımsız Denetim, İç Denetim, Muhasebe, Finansal ve Mali Danışmanlık hizmetleri sunmak üzere Ankara’da kurulmuştur.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchİstanbul, TürkiyeHQ recorded Sep 20, 202611-5010 contacts →

Exact match

“Established in 1996, AG Audit has been authorized as an independent audit firm by the Public Oversight Accounting and Auditing Standards Authority.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchIstanbul, TürkiyeHQ recorded Sep 20, 202611-509 contacts →

Exact match

“Kapsam YMM,1995 yılından bu yana tecrübeli uzman kadrosuyla Mali Müşavirlik, İç Denetim, Vergi Denetim, Planlama, Danışmanlığı hizmetleri vermektedir.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchAnkara, TürkiyeHQ recorded Sep 20, 202651-2009 contacts →

Exact match

“Founded in 2004, Dmf System International Independent Auditing, Consulting & Certified Public Accounting Co.(“DMF”) is an independent auditing, consultancy and Certified Public…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchKagithane, TürkiyeHQ recorded Sep 20, 202611-509 contacts →

Exact match

“Building Trust Through Transparent Audit Solutions”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchKonak, TürkiyeHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Motto olarak, müşterilerimize mükemmellikle hizmet vermek için tutkulu bir şekilde çalışıyoruz.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchIstanbul, TürkiyeHQ recorded Sep 20, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchİstanbul, TürkiyeHQ recorded Sep 20, 202651-2007 contacts →

Exact match

“İDM İç Denetim Merkezi is a financial services company based out of Fahrettin Kerim Gökay ad:228 / 19, İstanbul, Istanbul, Turkey.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchIzmir Bayraklı, TürkiyeHQ recorded Sep 20, 202611-507 contacts →

Exact match

“Mali̇ye bakanliği spk kgk epdk tarim bakanliği tübi̇tak kosgeb deneti̇mleri̇ ve raporlamalari ifrs ve vuk deneti̇mleri̇ tasdi̇k raporlari bağimsiz deneti̇m raporlamalari”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchBahçelievler, TürkiyeHQ recorded Sep 20, 202611-505 contacts →

Exact match

“ÖKÇÜN YMM 1998 yılından beri profesyonel bir anlayış ile yeminli mali müşavirlik ve bağımsız denetim hizmeti veriyoruz.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchİstanbul, TürkiyeHQ recorded Sep 20, 202611-504 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchSerdivan, TürkiyeHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Finans, üretim ve iletişim alanlarında iç denetim ve yönetim danışmanlığı hizmetleri veren bir şirket”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchİzmi̇r, TürkiyeHQ recorded Sep 20, 20261-103 contacts →

Exact match

“Managed internal controls related services (business process reviews, designs and re-engineering, controls review and implementation, risk assessments) for government institutions…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchIstanbul, TürkiyeHQ recorded Sep 20, 20261-103 contacts →

Exact match

“DENKLEM Sworn-in Certified Public Accounting and AUDIT was established by Serdar TAŞDÖKEN who has worked as a Finance Inspector for a long time in the Ministry of Finance and now…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchBayraklı, TürkiyeHQ recorded Sep 20, 20261-102 contacts →

Exact match

“TnB Kurumsal Danışmanlık ve Denetim Ltd.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchİstanbul, TürkiyeHQ recorded Sep 20, 20261-102 contacts →

Exact match

“Neta Denetim; İç Kontrol, Uyum ve Risk Yönetimi alanlarında müşterilerine bilgi ve birikimini aktaran bir danışmanlık firmasıdır.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 142 internal audit service providers based in Türkiye

See the full list, filter by size, metro and specialty, and access 117 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Internal audit service providers based in Türkiye at a glance

As of Sep 20, 2026
14.3%Verified-email coverage
5.7Average contacts per company
11-50Median size (employees)
33.1%Largest-city concentration · Istanbul
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
66
11-50
65
51-200
11

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 142 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Türkiye whose business descriptions match “internal audit service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 117 professional contacts with verified work emails across the full matched dataset. 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 September 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “internal audit service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many internal audit service providers are there based in Türkiye?

RevenueBase identified 142 company matches for internal audit service providers associated with Türkiye as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Güncel Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most internal audit service providers?

Istanbul leads with 47 company records, followed by Ankara (12) and Cankaya (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 117 professional contacts with verified work emails tracked across these 142 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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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 SmartSearch, 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.