Company lists · Data refreshed September 2026

Top 25 Accounting firms for international nonprofits based in Türkiye

RevenueBase identified 339 accounting firms for international nonprofits headquartered in Türkiye as of September 2026 and tracks 4,190 professional contacts across them, including 271 with verified work emails. Istanbul is the largest hub.

This list covers accounting firms for international nonprofits 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 14, 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 14, 2026 86% judged on-target in blind review
339Companies
4,190Contacts tracked
271Verified emails
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The 25 largest accounting firms for international nonprofits based in Türkiye

Ranked by team size
Top 25 of 339 accounting firms for international nonprofits based in Türkiye, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to accounting firms for international nonprofits: 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 Sep 14, 2026201-500197 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceİstanbul, TürkiyeHQ checked Sep 14, 202651-20093 contacts →

Indirect evidence

“Vergi, Denetim, Danışmanlık”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceÇankaya, TürkiyeHQ checked Sep 14, 202651-20055 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 Sep 14, 2026
4Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 2026n/a45 contacts →

Indirect evidence

“Rödl & Partner Nürnberg merkezli Hukuk, Vergi Danışmanlığı, Mali Müşavirlik, Yönetim/IT Danışmanlığı ve Denetim alanlarında 50 ülkede 107 farklı lokasyonda yaklaşık 5260 çalışanı…”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceSariyer, TürkiyeHQ checked Sep 14, 202651-20039 contacts →

Indirect evidence

“PKF Turkey was established in 2005 in Istanbul.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceBeykoz, TürkiyeHQ checked Sep 14, 202611-5038 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceİçerenköy, TürkiyeHQ checked Sep 14, 202651-20032 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceKadıköy, TürkiyeHQ checked Sep 14, 202611-5027 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 Sep 14, 2026
9Indirect evidenceBakırköy, TürkiyeHQ checked Sep 14, 202611-5026 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 Sep 14, 2026
10Indirect evidenceİstanbul, TürkiyeHQ checked Sep 14, 202651-20025 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 Sep 14, 2026
11Indirect evidenceAnkara, TürkiyeHQ checked Sep 14, 202611-5023 contacts →

Indirect evidence

“Kapsam Denetim Serbest Muhasebeci Mali Müşavirlik Ltd.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceSisli, TürkiyeHQ checked Sep 14, 202651-20014 contacts →

Indirect evidence

“Consulta Grubu, hizmet alanlarına göre kurumsal yapılanmasını oluşturmuş beş şirketten oluşmaktadır.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceAnkara, TürkiyeHQ checked Sep 14, 202611-5014 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 Sep 14, 2026
14Partial evidenceİstanbul, TürkiyeHQ checked Sep 14, 202611-5014 contacts →

Partial 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 14, 2026
15Strong evidenceAtasehir, TürkiyeHQ checked Sep 14, 202611-5014 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 Sep 14, 2026
16Indirect evidenceKonak, TürkiyeHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“İZDENETİM deneyimli ve profesyonel bir ekip tarafından kurulmuş olup; • Yeminli mali müşavirlik, • Bağımsız denetim, • Denetim hizmetleri, • Yönetim danışmanlığı, • Mali…”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceAnkara, TürkiyeHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“REHBER, Bağımsız Denetim, Finansal Danışmanlık, Yeminli Mali Müşavirlik, Ulusal ve Uluslararası Fon Denetimi, Vergi ve Hukuk Müşavirliği ve Bilgi Sistemleri Denetimi konularında…”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceBesiktas, TürkiyeHQ checked Sep 14, 202611-5012 contacts →

Indirect evidence

“20 years of experience.”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceİzmir, TürkiyeHQ checked Sep 14, 202611-5011 contacts →

Indirect evidence

“40 yılın üzerindeki tecrübesi beraberinde mali müşavirlik, muhasebe ve denetim hizmetleri konusunda faaliyet göstermekteyiz.”

Source: RevenueBase Database · checked Sep 14, 2026
20Partial evidenceKonak, TürkiyeHQ checked Sep 14, 202611-5011 contacts →

Partial evidence

“TCS Lydia (A member of TCS Global) provides tax services (Tax management and accounting, transfer pricing, legal services), audit & assurance services (Independent auditing, IFRS…”

Source: RevenueBase Database · checked Sep 14, 2026
21Partial evidenceÇankaya, TürkiyeHQ checked Sep 14, 202651-20010 contacts →

Partial 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 14, 2026
22Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 202611-5010 contacts →

Indirect evidence

“ASİL Denetim Vergi ve Danışmanlık konusunda tecrübeli birikimiyle yararlı hizmetler vermektedir.”

Source: RevenueBase Database · checked Sep 14, 2026
23Strong evidenceSarıyer, TürkiyeHQ checked Sep 14, 202611-509 contacts →

Strong evidence

“CPA International Turkey (founded 2022) delivers tax, accounting, audit and consultancy services focused on accurate, timely financial information to support management decisions…”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 202611-509 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 202611-509 contacts →

Indirect evidence

“KRK Partners olarak esas amacımız, toplumda güven oluşturarak, paydaşlarımızın önemli sorunlarına çözüm üreterek, sürdürülebilir işletme olmalarını sağlamaktır.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 339 accounting firms for international nonprofits based in Türkiye

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Accounting firms for international nonprofits based in Türkiye at a glance

As of Sep 14, 2026
6.5%Verified-email coverage
12.4Average contacts per company
1-10Median size (employees)
31.9%Largest-city concentration · Istanbul
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
191
11-50
125
51-200
16
201-500
5
1,001-5,000
1
5,001-10,000
1

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 339 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 firms for international nonprofits, 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 firms for international nonprofits”. 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 firms for international nonprofits), 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 firms for international nonprofits, 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, 271 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 14, 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.

Accounting firms for international nonprofits by metro

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 accounting firms for international nonprofits, 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 accounting firms for international nonprofits are there based in Türkiye?

RevenueBase identified 339 accounting firms for international nonprofits 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?

Güreli̇ YMM A.S, headquartered in Istanbul, tops this list with the largest team on record.

Which city has the most accounting firms for international nonprofits?

Istanbul leads with 108 headquartered companies, followed by Ankara (26) and Cankaya (15).

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 271 verified decision-maker contacts tracked across these 339 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 14, 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.