Company lists · Data refreshed September 2026

Top 25 Cybersecurity testing companies based in Türkiye

RevenueBase identified 141 company matches for cybersecurity testing companies associated with Türkiye as of September 2026 and tracks 1,501 professional contacts across them, including 240 with verified work emails. Istanbul is the largest hub.

This list covers company matches for cybersecurity testing companies 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 September 21, 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 Sep 21, 2026 How this list was built
141Companies
1,501Contacts tracked
240Verified emails
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The 25 largest cybersecurity testing companies based in Türkiye

Ranked by team size
Top 25 of 141 company matches for cybersecurity testing companies based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 Sep 21, 202651-200113 contacts →

Exact match

“ADEO Cyber Security is a trusted cybersecurity partner enabling organizations to build resilient, proactive, and continuous cyber defense capabilities.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202651-20081 contacts →

Exact match

“Privia Security, which plans to bring a different perspective to security and privacy concepts by acting with the slogan of “Privacy For You” in the field of cyber security, took…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202611-5069 contacts →

Exact match

“2017 yılında bilgi güvenliği konusunda danışmanlık, servis ve destek hizmetleri vermek amacıyla kurulan Infinitum IT, siber olaylara müdahale hizmetleri, güvenli kod…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202611-5059 contacts →

Exact match

“At Infosec, we don't just keep up with the rapid pace of cybersecurity-we set it.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202651-20054 contacts →

Exact match

“Teknoloji ve inovasyon aracılığıyla, müşterilerimiz, çalışma arkadaşlarımız, iş ortaklarımız ve çevremiz için güvenli bir gelecek inşa etmek için çalışıyoruz!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchAnkara, TürkiyeHQ recorded Sep 21, 202611-5044 contacts →

Exact match

“BEAM Teknoloji is an Accredited Cyber Security Testing and Evaluation Laboratory established in 2011.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchCumhuriyet Mah., TürkiyeHQ recorded Sep 21, 202611-5042 contacts →

Exact match

“Tetra Bilişim, yenilikçi ve önder yaklaşımı ile ülkemiz bilişim sektörüne ve bilgi güvenliğine sürekli katkı sağlamaktadır.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchBursa, TürkiyeHQ recorded Sep 21, 202611-5034 contacts →

Exact match

“BG-TEK was established in 2010 with the aim of providing cyber security services and developing cyber security products.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchİstanbul, TürkiyeHQ recorded Sep 21, 202651-20030 contacts →

Exact match

“About BGA Bilgi Güvenliği A.Ş.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchBeytepe, TürkiyeHQ recorded Sep 21, 20261-1025 contacts →

Exact match

“Bilishim Cyber Security and Artificial Intelligence Ltd is established with the vision of providing cyber security services and trainings and producing projects which apply…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchAnkara, TürkiyeHQ recorded Sep 21, 202651-20021 contacts →

Exact match

“SyberTÜRK Bilişim Teknolojileri A.Ş.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchŞişli, TürkiyeHQ recorded Sep 21, 202611-5020 contacts →

Exact match

“Guided by our philosophy,"Whatever we do, there will always be Art within," CyberArts brings together cybersecurity, information security, governance, risk, compliance, law…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchArdıçlı, TürkiyeHQ recorded Sep 21, 20261-1015 contacts →

Exact match

“LastGuard Bilişim Teknolojileri, uzman ekibiyle kurumlara ve özel sektöre yönelik güvenlik testleri, siber istihbarat çözümleri, danışmanlık hizmetleri, teknik ve farkındalık…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“Sektör deneyimi ve teknik uzmanlıkla donatılmış profesyonellerden oluşan ekibimizle, her müşteriye özel, yenilikçi ve özelleştirilmiş çözümler sunuyoruz.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchMustafa Kemal, TürkiyeHQ recorded Sep 21, 202611-5013 contacts →

Exact match

“Sparta Siber Güvenlik, kuruluşların siber güvenlik konusunda ihtiyaç duydukları profesyonel hizmetleri sunan TSE onaylı bir Sızma Testi Firmasıdır.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“Internal & External Penetration Tests Web & Mobil Application Security Tests CyberSecurity Consultancy Incident Response, Vulnerability Analysis, Threat Hunting”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchŞişli, TürkiyeHQ recorded Sep 21, 20261-1010 contacts →

Exact match

“Digital Forensics and Incident Response”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchAnkara, TürkiyeHQ recorded Sep 21, 20261-1010 contacts →

Exact match

“Sibereum Bilgi Güvenliği ve Danışmanlığı Tic.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchKarabük, TürkiyeHQ recorded Sep 21, 20261-1010 contacts →

Exact match

“Founded in 2024, TECHNATOLIA Cyber Security and Software Inc.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchKüçükbakkalköy, TürkiyeHQ recorded Sep 21, 202611-509 contacts →

Exact match

“Ofansif Siber Güvenlik, IT/OT Güvenliği, SOC Hizmetleri, Siber Güvenlik ve SOME Eğitimleri”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202611-509 contacts →

Exact match

“We don’t just secure systems.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchZonguldak, TürkiyeHQ recorded Sep 21, 20261-109 contacts →

Exact match

“Deepreo is a technology company providing integrated solutions in cybersecurity, system monitoring and management, secure software development, and corporate training.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchPendik, TürkiyeHQ recorded Sep 21, 202611-508 contacts →

Exact match

“Kaynak kod analizi ve sızma testi servisleri sağlayan TSE-B sınıfı siber güvenlik şirketidir.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchİstanbul (istanbul, TürkiyeHQ recorded Sep 21, 202611-507 contacts →

Exact match

“Siber güvenlik alanında Denetim, Danışmanlık ve Uygulama, Eğitim, Adli Bilişim konularında hizmet vermektedir.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchZonguldak, TürkiyeHQ recorded Sep 21, 20261-107 contacts →

Exact match

“DNG Teknoloji Anonim Şirketi 2024 yılında kurulmuştur.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 141 cybersecurity testing companies based in Türkiye

See the full list, filter by size, metro and specialty, and access 240 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity testing companies based in Türkiye at a glance

As of Sep 21, 2026
16.0%Verified-email coverage
10.6Average contacts per company
1-10Median size (employees)
34.8%Largest-city concentration · Istanbul
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
73
11-50
56
51-200
9
201-500
3

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 141 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 “cybersecurity testing companies” 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 240 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 September 21, 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.

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 “cybersecurity testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity testing companies are there based in Türkiye?

RevenueBase identified 141 company matches for cybersecurity testing companies associated with Türkiye as of September 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?

Adeo Cyber Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cybersecurity testing companies?

Istanbul leads with 49 company records, followed by Ankara (24) and Atasehir (8).

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 240 professional contacts with verified work emails tracked across these 141 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 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 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.