Company lists · Data refreshed September 2026
Top 25 Factory audit firms based in Türkiye
RevenueBase identified 220 factory audit firms headquartered in Türkiye as of September 2026 and tracks 2,696 professional contacts across them, including 436 with verified work emails. Istanbul is the largest hub.
This list covers factory audit firms 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 20, 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.
The 25 largest factory audit firms based in Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 220 contacts → | ||||
Indirect evidence “Stop letting compliance risks slow down your global trade.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 214 contacts → | ||||
Indirect evidence “Biz SGS’yiz - dünyanın lider gözetim, test ve belgelendirme kuruluşu.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 118 contacts → | ||||
Indirect evidence “AND, 2004 yılında yurtiçi ve yurtdışında belgelendirme konusunda tecrübeli bir ekip ile yola çıkarak, Türkiye’deki firmalara daha etkin hizmet vermek amacı ile kurulmuştur.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 98 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 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 90 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 88 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 79 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 53 contacts → | ||||
Indirect evidence “Ekoteks, “Güvenli Ürün Güvenli Üretim” ve “Sorumlu Üretim Sorumlu Tüketim” sorumluluğuyla çalışmaktadır.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 47 contacts → | ||||
Indirect evidence “2008 yılında; bağımsız, tarafsız ve güvenilir bir hizmet anlayışıyla çıktığımız yolda gururla devam ediyoruz.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 40 contacts → | ||||
Indirect evidence “INSPECCO is your accredited service provider for international certification, inspection, measurement, and training.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 38 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 37 contacts → | ||||
Indirect evidence “Incolab is an international network of accredited inspection and testing companies, serving clients across the globe.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 30 contacts → | ||||
Indirect evidence “IFC GLOBAL Sertifikasyon Muayene ve Eğitim Hizmetleri Anonim Şirketi uygunluk değerlendirme hizmetleri (Sistem belgelendirme, ürün belgelendirme ve muayene) konusunda hizmet…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 22 contacts → | ||||
Indirect evidence “CRAD 2008 yılında, kimya ve benzeri endüstri alanlarını Türkiye ve dünya çapında kimyasal mevzuatlara uyum konusunda desteklemek amacıyla kurulmuştur.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 contacts → | ||||
Indirect evidence “ECAS Belgelendirme is an independent,international operating certification body that carries out inspections and issues certificates.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Indirect evidence “ISIS Türkiye, kurulduğu 2003 yılından itibaren faaliyet alanlarında sektörün kurallarını oluşturan bilimsel çalışma anlayışı, multidisipliner profesyonel ekibi ile ülkemizin…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Indirect evidence “CERES, 2004 yılından bu yana organik tarım ve gıda işleme, gıda endüstrisi için iyi işleme uygulamaları, organik tekstil ürünleri ve sürdürülebilir üretim alanları için kontrol ve…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Indirect evidence “If you need any inspection, we are the IDEAL in this job.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Indirect evidence “Founded in 2004, Dmf System International Independent Auditing, Consulting & Certified Public Accounting Co.(“DMF”) is an independent auditing, consultancy and Certified Public…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Indirect evidence “AURA ULUSLAR ARASI BELGELENDİRME EĞİTİM DENETİM VE MUAYENE HİZ.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Indirect evidence “NDT and Inspection” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Indirect evidence “Diamond Vision müşterilerimizin bizden talep ettikleri hizmetleri sağlamak adına çalışmalar yapan bir danışmanlık, denetim ve belgelendirme şirketi olarak kurulmuştur.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Indirect evidence “ITS GÖZETİM MUAYENE VE EĞİTİM HİZMETLERİ olarak kalite, test, gözetim ve belgelendirme alanlarında hizmet vermekteyiz.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: factory audit firms. 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 factory audit firms.
- Partial evidence
- Its own public description names part of factory audit firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name factory audit firms. 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 220 factory audit firms based in Türkiye
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Factory audit firms based in Türkiye at a glance
As of Sep 20, 2026Companies by employee count
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 220 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 factory audit firms, 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 “factory audit firms”. 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 factory audit firms), 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 factory audit firms, 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, 436 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 20, 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.
Factory audit firms by metro
- Factory audit firms in Istanbul78
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 factory audit firms, 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 factory audit firms are there based in Türkiye?
RevenueBase identified 220 factory audit firms 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?
USB Certification, headquartered in Izmir, tops this list with the largest team on record.
Which city has the most factory audit firms?
Istanbul leads with 78 headquartered companies, followed by Ankara (24) and Izmir (19).
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 436 verified decision-maker contacts tracked across these 220 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 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 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.