Company lists · Data refreshed November 2026

Top 25 Software development security firms based in Türkiye

RevenueBase identified 137 company matches for software development security firms associated with Türkiye as of November 2026 and tracks 1,374 professional contacts across them, including 464 with verified work emails. Istanbul is the largest hub.

This list covers company matches for software development security firms 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 November 5, 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 Nov 5, 2026 How this list was built
137Companies
1,374Contacts tracked
464Verified emails
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The 25 largest software development security firms based in Türkiye

Ranked by team size
Top 25 of 137 company matches for software development security firms based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 Nov 5, 202651-20086 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202651-20077 contacts →

Exact match

“Soitron Siber Güvenlik Servisleri A.Ş, is the Turkish cybersecurity company of Europe-based information technology firm Soitron Group.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202611-5073 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202651-20055 contacts →

Exact match

“Secure Future; kurumların kritik varlıklarını koruyan, operasyonlarını kesintisiz sürdürmelerini sağlayan ve karmaşık siber tehditleri proaktif olarak engelleyen yeni nesil bir…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchCumhuriyet Mah., TürkiyeHQ recorded Nov 5, 202611-5049 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 · Nov 5, 2026 · View company records in RevenueBase
6Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202651-20030 contacts →

Exact match

“About BGA Bilgi Güvenliği A.Ş.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchŞişli, TürkiyeHQ recorded Nov 5, 202611-5023 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 · Nov 5, 2026 · View company records in RevenueBase
8Exact matchAnkara, TürkiyeHQ recorded Nov 5, 202651-20018 contacts →

Exact match

“SyberTÜRK Bilişim Teknolojileri A.Ş.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchArdıçlı, TürkiyeHQ recorded Nov 5, 20261-1017 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 · Nov 5, 2026 · View company records in RevenueBase
10Exact matchPoligon Caddesi Buyaka 3. Blok Ümraniye, TürkiyeHQ recorded Nov 5, 202611-5015 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“Zero Second, kurumların dijital varlıklarını korumak ve siber dayanıklılıklarını güçlendirmek amacıyla uçtan uca siber güvenlik çözümleri sunan uluslararası bir siber güvenlik…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchAnkara, TürkiyeHQ recorded Nov 5, 20261-1014 contacts →

Exact match

“Sibereum Bilgi Güvenliği ve Danışmanlığı Tic.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202611-5013 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 · Nov 5, 2026 · View company records in RevenueBase
14Exact matchBursa, TürkiyeHQ recorded Nov 5, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“Güvenlik çözümlerinde uzman ekip F1 Teknoloji A.Ş.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Invento is a leading security solutions provider dedicated to empowering organizations with resilient and scalable information security frameworks.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchŞişli, TürkiyeHQ recorded Nov 5, 202651-20011 contacts →

Exact match

“Digital Forensics and Incident Response”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchPendik, TürkiyeHQ recorded Nov 5, 202611-509 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchİstanbul (istanbul, TürkiyeHQ recorded Nov 5, 202611-509 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchZonguldak, TürkiyeHQ recorded Nov 5, 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 · Nov 5, 2026 · View company records in RevenueBase
21Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202611-508 contacts →

Exact match

“We don’t just secure systems.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202611-507 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 · Nov 5, 2026 · View company records in RevenueBase
23Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Our company, managed by a specialized team in the field of security, offers a leading service in analysis.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchAtasehir, TürkiyeHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Endpoint-labs is an award-winning pioneer in the next generation of application security solutions, rapidly becoming a widely recognized conspicuous in application security…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchTübi̇tak Gebze Yerleşkesi, TürkiyeHQ recorded Nov 5, 20261-106 contacts →

Exact match

“ISR provides up-to-date, robust and practical solutions to the companies, especially that prefer not to have an in-house IT research or software development departments, for…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 137 software development security firms based in Türkiye

See the full list, filter by size, metro and specialty, and access 464 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Software development security firms based in Türkiye at a glance

As of Nov 5, 2026
33.8%Verified-email coverage
10.0Average contacts per company
1-10Median size (employees)
38.7%Largest-city concentration · Istanbul
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
71
11-50
55
51-200
9
201-500
1

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 137 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 “software development security firms” 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 464 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 November 5, 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.

Software development security firms by metro

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 “software development security firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many software development security firms are there based in Türkiye?

RevenueBase identified 137 company matches for software development security firms associated with Türkiye as of November 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?

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

Which city has the most software development security firms?

Istanbul leads with 53 company records, followed by Ankara (14) and Sisli (6).

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 464 professional contacts with verified work emails tracked across these 137 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 November 5, 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.