Company lists · Data refreshed September 2026

Top 25 Custom compliance companies based in Türkiye

RevenueBase identified 228 custom compliance companies headquartered in Türkiye as of September 2026 and tracks 2,628 professional contacts across them, including 675 with verified work emails. Istanbul is the largest hub.

This list covers custom compliance companies 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 21, 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 21, 2026 86% judged on-target in blind review
228Companies
2,628Contacts tracked
675Verified emails
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The 25 largest custom compliance companies based in Türkiye

Ranked by team size
Top 25 of 228 custom compliance companies based in Türkiye, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to custom compliance 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 Sep 21, 2026501-1,000321 contacts →

Indirect evidence

“Misyonumuz; Müşteri odaklı, teknoloji gelişmelere açık, etik değerlere bağlı, sürdürülebilir kurumsal çözüm ortağı olmak.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceİstanbul, TürkiyeHQ checked Sep 21, 2026201-500126 contacts →

Partial evidence

Customs Consultancy”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-200114 contacts →

Indirect evidence

“SYK Danışmanlık Grubu, hem yerel hem de uluslararası alandaki geniş tecrübesi ile müşterilerine uzun yıllardır önemli ticari projelerde üstün danışmanlık hizmetleri sunmaya devam…”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceİstnbul, TürkiyeHQ checked Sep 21, 2026201-50098 contacts →

Indirect evidence

“ALFANORM denetim ve belgelendirme sektöründe uzun yıllara dayalı tecrübesi bulunan uzmanlar tarafından kurulmuş bağımsız bir denetim ve belgelendirme firmasıdır.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceBayraklı-i̇zmi̇r, TürkiyeHQ checked Sep 21, 202651-20094 contacts →

Indirect evidence

“Firmamız 1985 yılında ticari faaliyetine başlamıştır.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceİzmir, TürkiyeHQ checked Sep 21, 2026501-1,00078 contacts →

Indirect evidence

“It has been exactly 20 years since we opened our first head office in İzmir in 2003.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-20077 contacts →

Indirect evidence

“ONEL Şirketler Grubu çatısı altında yılında kurulan ONEL Gümrük Müşavirliği, dış ticaret alanında gümrükleme, lojistik, ithalat, ihracat, sigorta ve transit işlemlerinde…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceGültepe, TürkiyeHQ checked Sep 21, 202651-20059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceKadıköy, TürkiyeHQ checked Sep 21, 202651-20056 contacts →

Partial evidence

“Medtria Customs Clearance Services Department offers optimal solutions in terms of cost and time by planning operational implementation, legal process follow-up and consultancy…”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceIstanbul, TürkiyeHQ checked Sep 21, 2026201-50054 contacts →

Indirect evidence

“HİTİT GÜMRÜK MÜŞAVİRLİĞİ; 1980’li yıllardan beri Gümrük Müşavirliği mesleğine verdiğimiz emeğin ürünüdür.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceBayrakli, TürkiyeHQ checked Sep 21, 202651-20053 contacts →

Indirect evidence

“Ege Uzman Gümrük Müşavirliği ve Lojistik Tic.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-20039 contacts →

Indirect evidence

“2001 yılında Kordon Gümrük Müşavirliği olarak faaliyetlerine başlamış, bugün 16 ilde toplam 19 ofisi bulunan, uzman personel ve güçlü altyapısı ile alanında Türkiye’nin en büyük…”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-20039 contacts →

Indirect evidence

“Hakkımızda 1975 yılında Karaköy’de iki personel ile faaliyetine başlayan Oğuz Gümrük Müşavirliği, 31 yıl sonra bugün Gazeteciler sitesinde kendisine ait 6 katlı plazası, 85…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceBostancı, TürkiyeHQ checked Sep 21, 2026201-50033 contacts →

Indirect evidence

“BİZ KİMİZ?”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202611-5025 contacts →

Indirect evidence

“1992 yılında Ankara merkezli olarak müşavirlik faaliyetine başlayan firmamız 2001 yılında İstanbul şubesini, 2004 yılında gümrükleme şirketini faaliyete geçirmiştir.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceNilüfer, TürkiyeHQ checked Sep 21, 202611-5022 contacts →

Indirect evidence

“Kuruluşumuzun temelleri 2004 yılında Yusuf Kabataş tarafından atılmıştır.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceIstanbul, TürkiyeHQ checked Sep 21, 202651-20021 contacts →

Indirect evidence

“Tunaset Gümrük Müşavirliği, uzman çalışan kadrosuyla sahip olduğu tüm bilgi, birikim tecrübesini müşterilerine en yüksek kalitede sunarak Türkiye'nin önde gelen kurum ve…”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-20021 contacts →

Indirect evidence

“HAKKIMIZDA İMER Gümrük Müşavirliği şirketi 1984 yılında Esen YAĞCI tarafından kurulmuştur.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“Zirve Yetkilendirilmiş Gümrük Müşavirliği A.Ş, Gümrük Ve Ticaret Bakanlığında 35 yıl önemli görevlerde bulunmuş ve daha sonra kamu ve özel sektörde yöneticilik görevi üstlenmiş…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceKonak, TürkiyeHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“Merkezi İzmir’de faaliyet gösteren firmamız, deneyimli personeli ile ithalat, ihracat ve transit işlemleri ile ilgili her türlü gümrükleme hizmeti sunmaktadır.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceBasaksehir, TürkiyeHQ checked Sep 21, 202651-20016 contacts →

Indirect evidence

“Turnak Gümrük Müşavirliği Ltd.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceKadıkoy, TürkiyeHQ checked Sep 21, 202611-5015 contacts →

Indirect evidence

“DORUKSISTEM ENGINEERING, TECHNOLOGY & CONSULTANCY, INC.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-20012 contacts →

Indirect evidence

“His Gümrük Müşavirliği, 10 yılı aşkın süredir Gümrük Müşavirliği ve Dış Ticaret Danışmanlığı faaliyetlerini sürdürmektedir.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-20011 contacts →

Indirect evidence

“25 yılı aşkın süre boyunca ülkemizin tüm bölgelerinde görev yapmış, gümrük mevzuatı ve uygulamalarının tamamına vakıf, uzman ve uygulayıcı gümrük müşavirleri liderliğinde, aynı…”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceBesiktas, TürkiyeHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“GRC LEGAL is a legal and compliance firm that lies at the intersection of IT and technology with law practice and offers a comprehensive portfolio of legal services to…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 228 custom compliance companies based in Türkiye

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Custom compliance companies based in Türkiye at a glance

As of Sep 21, 2026
25.7%Verified-email coverage
11.5Average contacts per company
11-50Median size (employees)
34.6%Largest-city concentration · Istanbul
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
74
11-50
105
51-200
34
201-500
8
501-1,000
2
1,001-5,000
1
10001+
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 228 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 custom compliance 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 “custom compliance 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 custom compliance 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 custom compliance 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, 675 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 21, 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.

Custom compliance companies by metro

  • Custom compliance companies in Istanbul79

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 custom compliance companies, 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 custom compliance companies are there based in Türkiye?

RevenueBase identified 228 custom compliance companies 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?

Subaşı Gümrük Müşavirliği A.Ş, headquartered in Istanbul, tops this list with the largest team on record.

Which city has the most custom compliance companies?

Istanbul leads with 79 headquartered companies, followed by Izmir (18) and Ankara (8).

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 675 verified decision-maker contacts tracked across these 228 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 21, 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.