Company lists · Data refreshed November 2026

Top 25 Iso audit services based in Türkiye

RevenueBase identified 270 company matches for iso audit services associated with Türkiye as of November 2026 and tracks 2,624 professional contacts across them, including 412 with verified work emails. Istanbul is the largest hub.

This list covers company matches for iso audit services 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 November 5, 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 Nov 5, 2026 How this list was built
270Companies
2,624Contacts tracked
412Verified emails
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The 25 largest iso audit services based in Türkiye

Ranked by team size
Top 25 of 270 company matches for iso audit services based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchIstanbul, TürkiyeHQ recorded Nov 5, 20261,001-5,000205 contacts →

Exact match

“TÜV AUSTRIA TURK: Güvenilir Çözüm Ortağınız 1872 yılında temelleri atılan TÜV AUSTRIA Grubu, tarafsız ve bağımsız bir kuruluş olarak kalite kontrol, belgelendirme, test, teknik…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchAtaşehir, TürkiyeHQ recorded Nov 5, 202651-200123 contacts →

Exact match

“AND, 2004 yılında yurtiçi ve yurtdışında belgelendirme konusunda tecrübeli bir ekip ile yola çıkarak, Türkiye’deki firmalara daha etkin hizmet vermek amacı ile kurulmuştur.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202651-200118 contacts →

Exact match

“TSE Global is a conformity assessment body supporting public- and private-sector organizations in evaluating products, processes and management systems against applicable…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchAnkara, TürkiyeHQ recorded Nov 5, 202651-200106 contacts →

Exact match

“UDEM olarak, 20 yılı aşkın tecrübemiz ile kaliteli, tarafsız ve sektöre öncülük eden uygunluk değerlendirme ve test hizmetleri sunmaktayız.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202651-20099 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchİstnbul, TürkiyeHQ recorded Nov 5, 2026201-50097 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202651-20095 contacts →

Exact match

“TÜV NORD Turkey - Inspired by Knowledge TÜV NORD Turkey Teknik Kontrol ve Belgelendirme A.Ş.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 2026201-50093 contacts →

Exact match

“ABOUT US: Drawing upon over four decades of expertise, our objective is to elevate inspection and surveillance endeavors to an international standard, thereby enhancing our brand…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202651-20084 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchYenimahalle / Ankara, TürkiyeHQ recorded Nov 5, 202651-20061 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchŞişli, TürkiyeHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“2008 yılında; bağımsız, tarafsız ve güvenilir bir hizmet anlayışıyla çıktığımız yolda gururla devam ediyoruz.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchÜmraniye, TürkiyeHQ recorded Nov 5, 202651-20043 contacts →

Exact match

“INSPECCO is your accredited service provider for international certification, inspection, measurement, and training.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchBeykoz, TürkiyeHQ recorded Nov 5, 202611-5040 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchİzmi̇r, TürkiyeHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“IFC GLOBAL Sertifikasyon Muayene ve Eğitim Hizmetleri Anonim Şirketi uygunluk değerlendirme hizmetleri (Sistem belgelendirme, ürün belgelendirme ve muayene) konusunda hizmet…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchOsmangazi, TürkiyeHQ recorded Nov 5, 202651-20030 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 · Nov 5, 2026 · View company records in RevenueBase
16Exact matchAtasehir, TürkiyeHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“ISO/ IEC 17021, ISO/IEC 17020 ve ISO/IEC 17065 standartlarına uygunluk göstermek ve akreditasyon kapsamına uygun şekilde, ilgili yönetim sistemlerinden belgelendirilmek isteyen…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBağcılar, TürkiyeHQ recorded Nov 5, 202651-20025 contacts →

Exact match

“Test Analiz ve Belgelendirme; Belgelendirmenin amacı, bir kurum ve kuruluşta işletilen bir yönetim sisteminin ilgili standartlara uyduğunun ve etkin şekilde uygulandığının…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchMuratpaşa, TürkiyeHQ recorded Nov 5, 202611-5024 contacts →

Exact match

“ECAS Belgelendirme is an independent,international operating certification body that carries out inspections and issues certificates.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchKecioren, TürkiyeHQ recorded Nov 5, 202611-5024 contacts →

Exact match

“Optimal Denge Üst Yönetimi ve Kurucu Kadrosu; uzun yıllar boyunca edindikleri yetkinlik ve tecrübeleri yeni bir heyecanla sektöre yansıtmak için Optimal Denge Teknik Denetim A.Ş.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202651-20023 contacts →

Exact match

“Management Systems Certification; ISO 9001 Quality Management System, ISO 14001 Environmental Management System, ISO 45001 OHSAS, ISO Information Technologies Service Management…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchNilufer, TürkiyeHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“Kalite ve Verimlilik Yönetimi danışmanlık sunmakta ve eğitimler vermektedir.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchAnkara, TürkiyeHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“BBS Certification Training and Inspection Services Inc.(BBS A.Ş.) was founded in in Ankara, Turkey to provide Management System Certification, Training, Compliance and Inspection…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchÇankaya, TürkiyeHQ recorded Nov 5, 202651-20016 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchMaltepe, TürkiyeHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“SBG Conformity Assessment Inc.(formerly Standard BM Trada Belgelendirme A.Ş) was established in 2004 as a Turkish-British joint venture.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchSakarya, TürkiyeHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“TEKPROM is an inspection body established in 2009, headquartered in Sakarya Turkey, providing conformity assessment services especially inspection in energy sector.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 270 iso audit services based in Türkiye

See the full list, filter by size, metro and specialty, and access 412 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Iso audit services based in Türkiye at a glance

As of Nov 5, 2026
15.7%Verified-email coverage
9.7Average contacts per company
1-10Median size (employees)
29.3%Largest-city concentration · Istanbul
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
142
11-50
85
51-200
33
201-500
4
501-1,000
3
1,001-5,000
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 270 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 “iso audit services” 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 412 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 November 5, 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.

Iso audit services by metro

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 “iso audit services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso audit services are there based in Türkiye?

RevenueBase identified 270 company matches for iso audit services associated with Türkiye as of November 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?

TÜV Austria Turk tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most iso audit services?

Istanbul leads with 79 company records, followed by Ankara (29) and Izmir (14).

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 412 professional contacts with verified work emails tracked across these 270 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 November 5, 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.