Company lists · Data refreshed November 2026

Top 25 IT security consultants based in Türkiye

RevenueBase identified 191 company matches for IT security consultants associated with Türkiye as of November 2026 and tracks 1,583 professional contacts across them, including 452 with verified work emails. Istanbul is the largest hub.

This list covers company matches for IT security consultants 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
191Companies
1,583Contacts tracked
452Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest IT security consultants based in Türkiye

Ranked by team size
Top 25 of 191 company matches for IT security consultants 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, 202651-20096 contacts →

Exact match

“Platin Bilişim, ”Siber Güvenlik”, “Bütünsel Güvenlik” ve "Veri Koruma" çözümleri alanlarında hizmet veren bir teknoloji firmasıdır.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202651-20075 contacts →

Exact match

“Natica is a technology consultancy and services firm specializing in delivering success to its clients.”

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 matchÇankaya, TürkiyeHQ recorded Nov 5, 202611-5061 contacts →

Exact match

“Arksoft was founded by the experts on their domains and gives the consultancy services to Turkey's largest enterprises and government organizations by it's unique team.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchÜsküdar, TürkiyeHQ recorded Nov 5, 202611-5051 contacts →

Exact match

“RSU provides services on IT Risk Solutions, such as IT risk and compliance, penetration testing, cyber security consultancy, digital forensic, incident response, and training to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202611-5049 contacts →

Exact match

“Company Profile Lostar Inc, founded in 1998, based in Istanbul/Turkey, provides competitive edge in an uncertain world with Business and Technology Risk Consulting.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202651-20048 contacts →

Exact match

“Servicepark olarak uzun yıllardır bilişim sektöründe olan kaliteli bir ekip ile, müşterilerimize en yüksek kalitede çözüm ve danışmanlık hizmetleri sağlayarak özellikle kritik…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchSisli, TürkiyeHQ recorded Nov 5, 202611-5035 contacts →

Exact match

“InfoNet, 1995 yılından bu yana Türkiye'de bilgi teknolojileri sektörüne yönelik kurumsal ağ güvenliği, bilgi güvenliği ve sistem entegrasyon çözümleri sunmakta ve ilgili kurumlara…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact 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
12Exact 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
13Exact matchCankaya, TürkiyeHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“2012 yılında kurulan İnfrasis Siber Mühendislik, bilgi kaynaklarının güvenliği, verimliliği, sürekliliği, etkin kullanımı, iyileştirilmesi ve düzenlenmesi için üst seviye…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Sentra Information Technologies is one of the leaders in Cyber Security Solutions and Services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchİstanbul, TürkiyeHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“2012 yılında kurulan Datakey, uzman kadrosu ve müşteri memnuniyetini ön planda tutan kaliteli hizmet anlayışı ile daima daha iyisini başarmıştır.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 2026201-50018 contacts →

Exact match

“IT security and IT continuity consulting shop in the Turkish territory.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact 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
18Exact 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
19Exact 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
20Exact 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
21Exact 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
22Exact 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
23Exact matchAnkara, TürkiyeHQ recorded Nov 5, 20261-1011 contacts →

Exact match

“Bilişim güvenliği alanında global arenada kabul görmüş dünya lideri üreticilerin iş birlikteliği ve sektördeki güçlü bilgi birikimiz ile bilgi sistemlerinin güvenliği…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchYenimahalle, TürkiyeHQ recorded Nov 5, 20261-1011 contacts →

Exact match

“TRSiber Türkiye’de özellikle KOBİ’ler ve orta büyüklükteki işletmelerin bilgi güvenliği gereksinimlerinin karşılanmasında danışmanlık ve denetim hizmeti vermek üzere Ankara’da…”

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

Showing 25 of 191 IT security consultants based in Türkiye

See the full list, filter by size, metro and specialty, and access 452 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

IT security consultants based in Türkiye at a glance

As of Nov 5, 2026
28.6%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
38.2%Largest-city concentration · Istanbul
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
106
11-50
71
51-200
10
201-500
2
1,001-5,000
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 191 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 “IT security consultants” 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 452 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.

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

How many IT security consultants are there based in Türkiye?

RevenueBase identified 191 company matches for IT security consultants 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?

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

Which city has the most IT security consultants?

Istanbul leads with 73 company records, followed by Ankara (22) and Sisli (10).

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 452 professional contacts with verified work emails tracked across these 191 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.

Ready to reach these companies? Verified emails and direct dials for all 191 IT security consultants based in Türkiye. Start with a free account, no credit card.

Download this list →

Related lists

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.