Company lists · Data refreshed September 2026

Top 23 Cybersecurity incident response based in Türkiye

RevenueBase identified 59 cybersecurity incident response headquartered in Türkiye as of September 2026 and tracks 755 professional contacts across them, including 182 with verified work emails. Istanbul is the largest hub.

This list covers cybersecurity incident response 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 14, 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 14, 2026 86% judged on-target in blind review
59Companies
755Contacts tracked
182Verified emails
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The 23 largest cybersecurity incident response based in Türkiye

Ranked by team size
Top 23 of 59 cybersecurity incident response based in Türkiye, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity incident response: 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
1Partial evidenceIstanbul, TürkiyeHQ checked Sep 14, 202651-200113 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 202611-5069 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceIstanbul, TürkiyeHQ checked Sep 14, 202611-5059 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 202651-20054 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceKagithane, TürkiyeHQ checked Sep 14, 202611-5051 contacts →

Indirect evidence

“CyberForce, 30'dan fazla ülkeyi kapsayan entegre bir ağa sahip küresel bir ürün ve hizmet grubudur.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceCumhuriyet Mah., TürkiyeHQ checked Sep 14, 202611-5042 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceSisli, TürkiyeHQ checked Sep 14, 202611-5028 contacts →

Strong evidence

“Fordefence provides enterprise cybersecurity and digital forensics services to help organizations prevent, detect, and forensically investigate cyber incidents.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceİstanbul, TürkiyeHQ checked Sep 14, 202611-5026 contacts →

Indirect evidence

“Gais Siber Güvenlik Teknolojileri https://twitter.com/gaissecurity”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceAnkara, TürkiyeHQ checked Sep 14, 202611-5024 contacts →

Indirect evidence

“Secunnix'in kuruluş hikayesi şirket kurucularının 2006 yılında Siber Güvenlik dünyasına attıkları adım ile başladı.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceAnkara, TürkiyeHQ checked Sep 14, 202651-20021 contacts →

Indirect evidence

“SyberTÜRK Bilişim Teknolojileri A.Ş.”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceŞişli, TürkiyeHQ checked Sep 14, 202611-5020 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidencePoligon Caddesi Buyaka 3. Blok Ümraniye, TürkiyeHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

“GTI is an Information Security Consulting, Solutions & Training services firm, providing specialized security services.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceArdıçlı, TürkiyeHQ checked Sep 14, 20261-1015 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 202611-5014 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceKarabük, TürkiyeHQ checked Sep 14, 20261-1010 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceİstanbul (istanbul, TürkiyeHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceİstanbul, TürkiyeHQ checked Sep 14, 202651-2007 contacts →

Partial evidence

“CyberDistro emerges as a pivotal leader in the cybersecurity landscape, dedicated to enhancing the digital resilience of organizations worldwide.”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceZonguldak, TürkiyeHQ checked Sep 14, 20261-107 contacts →

Indirect evidence

“DNG Teknoloji Anonim Şirketi 2024 yılında kurulmuştur.”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceUmraniye, TürkiyeHQ checked Sep 14, 202611-506 contacts →

Indirect evidence

“Dndx Cyber security, the first and only managed cyber security service provider established in Turkey.”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceÇankaya/ankara, TürkiyeHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

“Founded in 2008 in Ankara, BELGESERT has been continuously evolving for over 15 years with its expert team and extensive knowledge, always prioritizing customer security.”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceİstanbul, TürkiyeHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Albisec, siber güvenlik ürünleri ve çözümlerinin danışmanlığını, kurulumunu ve destek hizmetlerini sunan, 15 yılı aşkın saha tecrübesine sahip bir ekip tarafından kurulmuştur.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceIstanbul, TürkiyeHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“We are focused on a single mission: to make organizations of all sizes secure from cyber threats and trust in their readiness level.”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceAvcilar, TürkiyeHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Siber Güvenlik alanında uzman olduğumuz konularda, müşterilerimizin sistemlerini savunmak ve kesintisiz bir iş akışı sağlamak üzere çeşitli güvenlik çözümleri entegre ediyoruz.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 23 of 59 cybersecurity incident response based in Türkiye

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Cybersecurity incident response based in Türkiye at a glance

As of Sep 14, 2026
24.1%Verified-email coverage
12.8Average contacts per company
11-50Median size (employees)
40.7%Largest-city concentration · Istanbul
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
29
51-200
6

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 59 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 cybersecurity incident response, 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 “cybersecurity incident response”. 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 cybersecurity incident response), 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 cybersecurity incident response, 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, 182 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 14, 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.

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 cybersecurity incident response, 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 cybersecurity incident response are there based in Türkiye?

RevenueBase identified 59 cybersecurity incident response 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?

Adeo Cyber Security, headquartered in Atasehir, tops this list with the largest team on record.

Which city has the most cybersecurity incident response?

Istanbul leads with 24 headquartered companies, followed by Ankara (8) and Sisli (3).

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 182 verified decision-maker contacts tracked across these 59 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 14, 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.