Company lists · Data refreshed September 2026
Top 25 Aviation safety testing and certification services based in Türkiye
RevenueBase identified 133 aviation safety testing and certification services headquartered in Türkiye as of September 2026 and tracks 2,940 professional contacts across them, including 424 with verified work emails. Istanbul is the largest hub.
This list covers aviation safety testing and certification services 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 16, 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 aviation safety testing and certification services based in Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 214 contacts → | ||||
Indirect evidence “Biz SGS’yiz - dünyanın lider gözetim, test ve belgelendirme kuruluşu.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 184 contacts → | ||||
Indirect evidence “TÜV AUSTRIA TURK: Güvenilir Çözüm Ortağınız 1872 yılında temelleri atılan TÜV AUSTRIA Grubu, tarafsız ve bağımsız bir kuruluş olarak kalite kontrol, belgelendirme, test, teknik…” Source: RevenueBase Database · checked Sep 16, 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 16, 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 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 contacts → | ||||
Indirect evidence “UGETAM is a company based in Turkey.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 93 contacts → | ||||
Indirect evidence “TÜV NORD Turkey - Inspired by Knowledge TÜV NORD Turkey Teknik Kontrol ve Belgelendirme A.Ş.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 90 contacts → | ||||
Indirect evidence “UDEM olarak, 20 yılı aşkın tecrübemiz ile kaliteli, tarafsız ve sektöre öncülük eden uygunluk değerlendirme ve test hizmetleri sunmaktayız.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 79 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 57 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 47 contacts → | ||||
Indirect evidence “2008 yılında; bağımsız, tarafsız ve güvenilir bir hizmet anlayışıyla çıktığımız yolda gururla devam ediyoruz.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 40 contacts → | ||||
Partial evidence “INSPECCO is your accredited service provider for international certification, inspection, measurement, and training.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 30 contacts → | ||||
Indirect evidence “AKIN Kalite Grup A.Ş, merkez ofisi Tuzla istanbul’da olan, ana çalışma alanı Petrol & Gaz, Enerji ve imalat sektörlerinde çalışan firmalara belgelendirme, tahribatlı ve…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 23 contacts → | ||||
Partial evidence “Management Systems Certification; ISO 9001 Quality Management System, ISO 14001 Environmental Management System, ISO 45001 OHSAS, ISO Information Technologies Service Management…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Partial evidence “Bytecraft is a Software Development company, established in 2021 in order to meet Safety-Critical Software Development needs of customers on Avionics Industry.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Strong evidence “Testing Inspection and Certification Services Accredited Services (welding, material) CE Marking Vendor Inspection” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Indirect evidence “NDT and Inspection” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Indirect evidence “ITS GÖZETİM MUAYENE VE EĞİTİM HİZMETLERİ olarak kalite, test, gözetim ve belgelendirme alanlarında hizmet vermekteyiz.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence “PCA Sertifikasyon Şubat 2010 tarihinde Belgem Belgelendirme ismiyle kurulmuş olup 2012 yılında isim değişikliği yapılarak PCA Sertifikasyon olmuştur.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “Swiss Safety Center AG offers solutions for different industries with specific services, products and qualifications in the fields of safety and quality.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “GSCS Intl (Turkey) Türkiye Sertifikasyon ve Denetim Hizmetleri Limited Şirketi is the subsidiary company of GSCS International Ltd.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “TSİ Uluslararası Belgelendirme Denetim ve Eğitim Hizmetleri Ltd.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Partial evidence “TSIGLBALTR Istanbul, Türkiye #PriorityBusiness on the worldwide #SafeWorldReliableFuture For all sector- Engineering, Inspection, Surveillance and Expediting Services -…” Source: RevenueBase Database · checked Sep 16, 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: aviation safety testing and certification services. 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 aviation safety testing and certification services.
- Partial evidence
- Its own public description names part of aviation safety testing and certification services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name aviation safety testing and certification services. 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 133 aviation safety testing and certification services based in Türkiye
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Aviation safety testing and certification services based in Türkiye at a glance
As of Sep 16, 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 133 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 aviation safety testing and certification services, 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 “aviation safety testing and certification services”. 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 aviation safety testing and certification services), 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 aviation safety testing and certification services, 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, 424 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 16, 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.
Aviation safety testing and certification services by metro
- Aviation safety testing and certification services in Istanbul43
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 aviation safety testing and certification services, 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 aviation safety testing and certification services are there based in Türkiye?
RevenueBase identified 133 aviation safety testing and certification services 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?
SGS Türkiye, headquartered in Türkiye, tops this list with the largest team on record.
Which city has the most aviation safety testing and certification services?
Istanbul leads with 43 headquartered companies, followed by Ankara (19) and Izmir (9).
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 424 verified decision-maker contacts tracked across these 133 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 16, 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.
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