Company lists · Data refreshed September 2026

Top 25 IT audit consultancies based in Türkiye

Name: IT audit consultancies based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 170 companies tracked

RevenueBase identified 170 IT audit consultancies headquartered in Türkiye as of September 2026 and tracks 1,149 professional contacts across them, including 196 with verified work emails. Istanbul is the largest hub.

This list covers IT audit consultancies headquartered in Türkiye, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 Sep 28, 2026 86% judged on-target in blind review

170Companies

1,149Contacts tracked

196Verified emails

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The 25 largest IT audit consultancies based in Türkiye

Ranked by team size

Top 25 of 170 IT audit consultancies based in Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT audit consultancies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nexia Turkey	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	81 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 Sep 28, 2026
2	Güncel Group	Partial evidence	Çankaya, TürkiyeHQ checked Sep 28, 2026	51-200	55 contacts →
	Partial 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 Sep 28, 2026
3	Aksis Uluslararası Bağımsız Denetim A.Ş	Indirect evidence	Beykoz, TürkiyeHQ checked Sep 28, 2026	11-50	38 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
4	ANY Partners Audit	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “Değer katan bir hizmet sunmak ve bir işi büyütmek sıradan bir iş anlayışı ile gerçekleştirilemez.” Source: RevenueBase Database · checked Sep 28, 2026
5	Çözüm Denetim Member Of Nexia	Indirect evidence	İzmir, TürkiyeHQ checked Sep 28, 2026	11-50	37 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 Sep 28, 2026
6	Arılar Bağımsız Denetim VE Yeminli Mali Müşavirlik A.Ş	Indirect evidence	Osmangazi, TürkiyeHQ checked Sep 28, 2026	51-200	28 contacts →
	Indirect evidence “Bağımsız Denetim Nexia Bursa; Kadrosundaki tecrübeli denetçilerden oluşan denetim ekipleriyle, Sermaye Piyasası Mevzuatına tabi kurum ve kuruluşların, Enerji Piyasasında faaliyet…” Source: RevenueBase Database · checked Sep 28, 2026
7	ATA Denetim	Partial evidence	19 Mayis, TürkiyeHQ checked Sep 28, 2026	51-200	28 contacts →
	Partial evidence “Kreston ATA International Audit Company has been operating in Turkey as a member of Kreston International.” Source: RevenueBase Database · checked Sep 28, 2026
8	CNS Bağımsız Denetim AŞ Member Of MSI Global Alliance	Indirect evidence	İçerenköy, TürkiyeHQ checked Sep 28, 2026	1-10	24 contacts →
	Indirect evidence “We are a medium-sized auditing and advisory firm.” Source: RevenueBase Database · checked Sep 28, 2026
9	Teolupus Denetim, Güvence Hizmetleri VE Yönetim Danışmanlığı Audit, Assurance Services And MNG CON	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	1-10	19 contacts →
	Indirect evidence “Teolupus Denetim Güvence Hizmetleri ve Yönetim Danışmanlığı, iç denetim, kurumsal risk yönetimi ve iç kontrol, süreç iyileştirme, insan kaynakları hizmetleri, bayii (franchise)…” Source: RevenueBase Database · checked Sep 28, 2026
10	Denetim Turkey - Nexia	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect 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 Sep 28, 2026
11	Promesa Group Member Of MSI Global Alliance	Indirect evidence	İçerenköy, TürkiyeHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “We are a medium-sized auditing, accounting and consultancy firm.” Source: RevenueBase Database · checked Sep 28, 2026
12	Kaya & Bekler	Indirect evidence	Beşiktaş, TürkiyeHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Kaya & Bekler, üretim ve hizmet sektörleri başta olmak üzere, çeşitli kurumsal sektör işletmelerine bağımsız denetim, vergi danışmanlığı, tam tasdik, muhasebe ve hukuki…” Source: RevenueBase Database · checked Sep 28, 2026
13	DMF Sistem Bağımsız Denetim VE YMM A.Ş	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 28, 2026	51-200	10 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 Sep 28, 2026
14	AG Denetim	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Established in 1996, AG Audit has been authorized as an independent audit firm by the Public Oversight Accounting and Auditing Standards Authority.” Source: RevenueBase Database · checked Sep 28, 2026
15	Trsiber Bilişim VE Danışmanlık A.Ş	Indirect evidence	Yenimahalle, TürkiyeHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “TRSiber Türkiye’de özellikle KOBİ’ler ve orta büyüklükteki işletmelerin bilgi güvenliği gereksinimlerinin karşılanmasında danışmanlık ve denetim hizmeti vermek üzere Ankara’da…” Source: RevenueBase Database · checked Sep 28, 2026
16	Bilgin Global Bağımsız Denetim A.Ş	Partial evidence	Kagithane, TürkiyeHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Building Trust Through Transparent Audit Solutions” Source: RevenueBase Database · checked Sep 28, 2026
17	Motto Audit I Advisory I TAX	Indirect evidence	Konak, TürkiyeHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Motto olarak, müşterilerimize mükemmellikle hizmet vermek için tutkulu bir şekilde çalışıyoruz.” Source: RevenueBase Database · checked Sep 28, 2026
18	Anali̇z Bağimsiz Deneti̇m VE Danişmanlik A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
19	Berussa	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Tax / Accounting / Consultancy” Source: RevenueBase Database · checked Sep 28, 2026
20	İDM İÇ Denetim Merkezi	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	7 contacts →
	Indirect evidence “İDM İç Denetim Merkezi is a financial services company based out of Fahrettin Kerim Gökay ad:228 / 19, İstanbul, Istanbul, Turkey.” Source: RevenueBase Database · checked Sep 28, 2026
21	TENET	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Tenet, yerel ve uluslararası tüm müşterilerinin ihtiyaçlarına cevap vermek adına denetim ve danışmanlık anlayışını genişleterek, firmaya ve endüstriye özel hizmetler sağlayan…” Source: RevenueBase Database · checked Sep 28, 2026
22	Platin Yeminli Mali Müşavirlik VE Denetim Hizmetleri A.Ş	Indirect evidence	Ataşehir, TürkiyeHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Mükellefler, ekonomik ve ticari faaliyetleri süresince karşılaştıkları risk ve beklenmeyen kamusal uyum maliyetlerini optimal ve öngörülebilir tutmak için üst düzey bir vergi…” Source: RevenueBase Database · checked Sep 28, 2026
23	İradem	Indirect evidence	Kocaeli̇, TürkiyeHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Ülkemizin giderek gelişen ekonomisinde kendinize yer bulmak için çabalarken, şirketinizin değerlerini ölçme ve yönetme konusunda sizinle birlikte, aynı vizyona koşacak çözüm…” Source: RevenueBase Database · checked Sep 28, 2026
24	Ökçün Yeminli Mali Müşavirlik	Indirect evidence	Bahçelievler, TürkiyeHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “ÖKÇÜN YMM 1998 yılından beri profesyonel bir anlayış ile yeminli mali müşavirlik ve bağımsız denetim hizmeti veriyoruz.” Source: RevenueBase Database · checked Sep 28, 2026
25	Yeminli Mali Müşavir Selahattin Gülen	Indirect evidence	Seyhan, TürkiyeHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Vergi denetim ve danışmanlık hizmeti vermekteyim.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT audit consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names IT audit consultancies.
Partial evidence: Its own public description names part of IT audit consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT audit consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 170 IT audit consultancies based in Türkiye

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IT audit consultancies based in Türkiye at a glance

As of Sep 28, 2026

17.1%Verified-email coverage

6.8Average contacts per company

1-10Median size (employees)

31.8%Largest-city concentration · Istanbul

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 170 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 IT audit consultancies, 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 “IT audit consultancies”. 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 IT audit consultancies), 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 IT audit consultancies, 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, 196 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 September 28, 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

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names IT audit consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many IT audit consultancies are there based in Türkiye?

RevenueBase identified 170 IT audit consultancies headquartered in Türkiye as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Nexia Turkey, headquartered in Sisli, tops this list with the largest team on record.

Which city has the most IT audit consultancies?

Istanbul leads with 54 headquartered companies, followed by Ankara (13) and Cankaya (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 196 verified decision-maker contacts tracked across these 170 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 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.