Company lists · Data refreshed September 2026

Top 25 Cybersecurity system integrators based in Türkiye

Name: Cybersecurity system integrators based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 502 companies tracked

RevenueBase identified 502 cybersecurity system integrators headquartered in Türkiye as of September 2026 and tracks 10,251 professional contacts across them, including 1,944 with verified work emails. Istanbul is the largest hub.

This list covers cybersecurity system integrators 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 28, 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 28, 2026 86% judged on-target in blind review

502Companies

10,251Contacts tracked

1,944Verified emails

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The 25 largest cybersecurity system integrators based in Türkiye

Ranked by team size

Top 25 of 502 cybersecurity system integrators based in Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity system integrators: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Havelsan	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	1,001-5,000	3,348 contacts →
	Indirect evidence “HAVELSAN, Türk Silahlı Kuvvetlerini Güçlendirme Vakfı'na bağlı, savunma ve bilişim sektörlerinde global çözümler sunan bir yazılım ve sistem entegratörü şirkettir.” Source: RevenueBase Database · checked Sep 28, 2026
2	Mikrolink	Strong evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	1,001-5,000	426 contacts →
	Strong evidence “Mikrolink is a global systems integrator offering integrated solutions in telecommunications, data center technologies, and information & communication technologies (ICT).” Source: RevenueBase Database · checked Sep 28, 2026
3	Teknoser	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	501-1,000	400 contacts →
	Indirect evidence “1998 yılında kurulan Teknoser, günümüzde bilgi ve iletişim teknolojileri pazarının önde gelen sistem entegrasyon ve saha hizmetleri firmasıdır.” Source: RevenueBase Database · checked Sep 28, 2026
4	Bilgi Birikim Sistemleri	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	201-500	271 contacts →
	Indirect evidence “1992 yılında, üniversite döneminden birbirlerini tanıyan 5 kurucu ortak tarafından kurulan Bilgi Birikim Sistemleri; bugün ülkemizin en önemli Bilgi Teknolojileri sistem…” Source: RevenueBase Database · checked Sep 28, 2026
5	Milsoft	Partial evidence	TürkiyeHQ checked Sep 28, 2026	201-500	238 contacts →
	Partial evidence “MilSOFT Software Technologies is a 100% Turkish company, which was established in 1998, specialized in System Integration and Software Development.” Source: RevenueBase Database · checked Sep 28, 2026
6	KRON	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	227 contacts →
	Partial evidence “Cybersecurity Leader in Privileged Access, Identity Security & Zero Trust Architectures Furnishing innovative approaches needed in order to achieve the digital transformation…” Source: RevenueBase Database · checked Sep 28, 2026
7	Sentim Bilişim Teknolojileri San. VE Tic. A.Ş	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	137 contacts →
	Indirect evidence “Sentim Information Technologies is one of the leading companies that introduced the computer technologies in Turkey and pioneered the development and spread of the same in the…” Source: RevenueBase Database · checked Sep 28, 2026
8	Sekom A.S	Strong evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	51-200	129 contacts →
	Strong evidence “Sekom, over 20 years of experience as a system integrator in the field of IT technologies is a market leader in networking, unified communications, service provider video systems…” Source: RevenueBase Database · checked Sep 28, 2026
9	Telekom Telekominikasyon DIS Tic.A.S	Strong evidence	İzmir, TürkiyeHQ checked Sep 28, 2026	11-50	121 contacts →
	Strong evidence “Our company is mainly a system integrator specialized in the fields of electronics, RF communications and security technologies.” Source: RevenueBase Database · checked Sep 28, 2026
10	Adeo Cyber Security	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	113 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 28, 2026
11	Netsmart	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	93 contacts →
	Indirect evidence “Netsmart, 25 yılı aşkın tecrübesiyle siber güvenlik alanında uzmanlaşmış lider bir danışmanlık şirketidir.” Source: RevenueBase Database · checked Sep 28, 2026
12	Platin Bilişim	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	91 contacts →
	Indirect evidence “Platin Bilişim, ”Siber Güvenlik”, “Bütünsel Güvenlik” ve "Veri Koruma" çözümleri alanlarında hizmet veren bir teknoloji firmasıdır.” Source: RevenueBase Database · checked Sep 28, 2026
13	IST Systems	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	201-500	84 contacts →
	Partial evidence “IST Systems, İstanbul Yeni Havalimanı için ICT altyapı, havacılık sistemleri tasarımı ve uygulanması amacıyla 2018 yılında kuruldu.” Source: RevenueBase Database · checked Sep 28, 2026
14	4s Bilgi Teknolojileri	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	51-200	84 contacts →
	Indirect evidence “Türkiye’de bilişim sektörünün önde gelen firmalarından 4S Bilgi Teknolojileri 1996 yılında Ankara’da kurulmuştur.” Source: RevenueBase Database · checked Sep 28, 2026
15	Infera Teknoloji	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	51-200	82 contacts →
	Indirect evidence “Sistem Entegrasyon \| Yazılım Geliştirme \| Veri Merkezi Çözümleri \| IT Güvenlik Çözümleri \| Danışmanlık Servisleri” Source: RevenueBase Database · checked Sep 28, 2026
16	Privia Security	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
17	Natica	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	74 contacts →
	Indirect evidence “Natica is a technology consultancy and services firm specializing in delivering success to its clients.” Source: RevenueBase Database · checked Sep 28, 2026
18	Infinitumit	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	11-50	69 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 28, 2026
19	Proven Technologies	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	51-200	67 contacts →
	Indirect evidence “Proven Technologies \| Proven Bilişim Teknolojileri A.Ş.” Source: RevenueBase Database · checked Sep 28, 2026
20	Soitron Türkiye	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	65 contacts →
	Partial evidence “Soitron Siber Güvenlik Servisleri A.Ş, is the Turkish cybersecurity company of Europe-based information technology firm Soitron Group.” Source: RevenueBase Database · checked Sep 28, 2026
21	Bilgi Sistemleri A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “Bilgi Sistemleri, 2002 yılında bilişim sektöründe "Sistem Entegratörü" olarak faaliyete geçmiştir.” Source: RevenueBase Database · checked Sep 28, 2026
22	Infosec	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	11-50	59 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 28, 2026
23	İHS Teknoloji	Indirect evidence	Kadikoy, TürkiyeHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “İHS is one of the pioneer establishments of the ICT sector in Turkey with regard to the value-added projects and the infrastructure services provided.” Source: RevenueBase Database · checked Sep 28, 2026
24	Secure Future Bilgi Teknolojileri	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	54 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 28, 2026
25	Cyberforce Security Operations Center	Indirect evidence	Kagithane, TürkiyeHQ checked Sep 28, 2026	11-50	51 contacts →
	Indirect evidence “CyberForce, 30'dan fazla ülkeyi kapsayan entegre bir ağa sahip küresel bir ürün ve hizmet grubudur.” Source: RevenueBase Database · checked Sep 28, 2026

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: cybersecurity system integrators. 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 cybersecurity system integrators.
Partial evidence: Its own public description names part of cybersecurity system integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity system integrators. 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 502 cybersecurity system integrators based in Türkiye

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Cybersecurity system integrators based in Türkiye at a glance

As of Sep 28, 2026

19.0%Verified-email coverage

20.4Average contacts per company

11-50Median size (employees)

37.1%Largest-city concentration · Istanbul

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

208

11-50

219

51-200

201-500

501-1,000

1,001-5,000

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 502 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 system integrators, 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 system integrators”. 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 system integrators), 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 system integrators, 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, 1,944 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 28, 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.

Cybersecurity system integrators by metro

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 system integrators, 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 system integrators are there based in Türkiye?

RevenueBase identified 502 cybersecurity system integrators 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?

Havelsan, headquartered in Ankara, tops this list with the largest team on record.

Which city has the most cybersecurity system integrators?

Istanbul leads with 186 headquartered companies, followed by Ankara (63) and Atasehir (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 1,944 verified decision-maker contacts tracked across these 502 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 28, 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.