Company lists · Data refreshed September 2026

Top 25 Iso 27001 information security consultants based in Türkiye

RevenueBase identified 163 company matches for iso 27001 information security consultants associated with Türkiye as of September 2026 and tracks 753 professional contacts across them, including 140 with verified work emails. Istanbul is the largest hub.

This list covers company matches for iso 27001 information 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 September 28, 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 28, 2026 How this list was built
163Companies
753Contacts tracked
140Verified emails
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The 25 largest iso 27001 information security consultants based in Türkiye

Ranked by team size
Top 25 of 163 company matches for iso 27001 information security consultants based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 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 28, 2026 · View company records in RevenueBase
2Exact matchİstanbul, TürkiyeHQ recorded Sep 28, 202611-5060 contacts →

Exact match

“BTYÖN; bilgi güvenliği, iş sürekliliği ve bilgi teknolojileri yönetişimi alanlarında danışmanlık, eğitim, analiz ve değerlendirme hizmetleri sunmaktadır.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchİstanbul, TürkiyeHQ recorded Sep 28, 202611-5042 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 · Sep 28, 2026 · View company records in RevenueBase
4Exact matchCumhuriyet Mah., TürkiyeHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5Exact matchİstanbul, TürkiyeHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“EMA Security, uluslararası geçerliliğe sahip sertifikalı uzman ekibiyle, Türkiye'de siber güvenlik ve bilgi güvenliği alanlarında faaliyet gösteren yenilikçi bir danışmanlık…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchPoligon Caddesi Buyaka 3. Blok Ümraniye, TürkiyeHQ recorded Sep 28, 202611-5016 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchAnkara, TürkiyeHQ recorded Sep 28, 20261-1012 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 · Sep 28, 2026 · View company records in RevenueBase
8Exact matchİstanbul, TürkiyeHQ recorded Sep 28, 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 · Sep 28, 2026 · View company records in RevenueBase
9Exact matchDuzce, TürkiyeHQ recorded Sep 28, 20261-1011 contacts →

Exact match

“Asrın Global araştırmacı, gelişime ve değişime açık, yenilikçi, faaliyet gösterdiği danışmanlık hizmetleriyle müşterilerine odaklanmış, iletişim kabiliyetini azami seviyede…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchHalkapinar, TürkiyeHQ recorded Sep 28, 202651-20010 contacts →

Exact match

“2001 yılında kurulan Proks Belgelendirme ve Özel Eğitim Hizmetleri Ltd.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchAnkara, TürkiyeHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“Sibereum Bilgi Güvenliği ve Danışmanlığı Tic.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchYenimahalle, TürkiyeHQ recorded Sep 28, 20261-1010 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 · Sep 28, 2026 · View company records in RevenueBase
13Exact matchIstanbul, TürkiyeHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“Our Security Consultancy services depends on an methodological approach proven by numerous examples of success in the world and in our country.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchİstanbul, TürkiyeHQ recorded Sep 28, 202611-506 contacts →

Exact match

“NETSEC BİLİŞİM ÇÖZÜMLERİ; Deneyimli kadrosuyla bilgi güvenliği sektöründe 2010 yılından bu yana hizmet veren Netsec Bilişim Çözümleri, sektöründe lider konumunda bulunan yerel ve…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchİstanbul, TürkiyeHQ recorded Sep 28, 20261-106 contacts →

Exact match

“Günümüz teknolojisinin geldiği bugün ki durum göz önünde bulundurulduğunda bilgisayar, akıllı telefon, internet ve sosyal medya kullanımı günlük ve iş hayatlarımızın her anına ve…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchIstanbul, TürkiyeHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Our consultancy services enable you to effectively manage internal and external risks that may arise from your company, employees, and business partners.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchIstanbul, TürkiyeHQ recorded Sep 28, 202611-505 contacts →

Exact match

“blog.btrisk.com BTRisk provides assurance and consulting services in information security and IT governance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchIstanbul, TürkiyeHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Yönetim Sistemleri Danışmanlığı, Denetim ve Eğitim Hizmetleri Bilgi Güvenliği, İş Sürekliliği, BT Yönetişim, IT Servis ve Yönetimi”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchSarıyer, TürkiyeHQ recorded Sep 28, 202611-504 contacts →

Exact match

“Center On Digital is ensuring the information security is critical to the success and continuity of the company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchNilüfer, TürkiyeHQ recorded Sep 28, 20261-104 contacts →

Exact match

“ISO Danışmanlıkları | CB DDO BİG Rehberi Uyum Danışmanlığı | GDPR & KVK Kanunu Uyum Danışmanlıkları | DPO Hizmetleri | ERP Danışmanlıkları | Muhasebe ve Finans Yönetim ve Denetim…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchIstanbul, TürkiyeHQ recorded Sep 28, 20261-103 contacts →

Exact match

“G&G is an organization located in Turkey and Hungary, who is aiming to support the organizations and individuals to conduct their businesses on efficient and secure platforms.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchIstanbul, TürkiyeHQ recorded Sep 28, 20261-103 contacts →

Exact match

“ISO 27001 Bilgi Güvenliği Yönetim Sistemi Danışmanlığı ISO 22301 İş Sürekliliği Yönetim Sistemi Danışmanlığı ISO BT Hizmet Yönetim Sistemi Danışmanlığı Yönetim Sistemleri…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchEskişehir, TürkiyeHQ recorded Sep 28, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchSarıyer, TürkiyeHQ recorded Sep 28, 20261-103 contacts →

Exact match

“DNS Danismanlik is specialized in information security area.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchKartal, TürkiyeHQ recorded Sep 28, 20261-103 contacts →

Exact match

“Kurumsal organizasyonların bilgi güvenliği risklerini sistematik biçimde yönetmelerine destek oluyoruz.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 163 iso 27001 information security consultants based in Türkiye

See the full list, filter by size, metro and specialty, and access 140 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Iso 27001 information security consultants based in Türkiye at a glance

As of Sep 28, 2026
18.6%Verified-email coverage
4.6Average contacts per company
1-10Median size (employees)
40.5%Largest-city concentration · Istanbul
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
118
11-50
38
51-200
6
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 163 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 “iso 27001 information 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 140 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 28, 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.

Iso 27001 information 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 “iso 27001 information security consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso 27001 information security consultants are there based in Türkiye?

RevenueBase identified 163 company matches for iso 27001 information security consultants 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?

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

Which city has the most iso 27001 information security consultants?

Istanbul leads with 66 company records, followed by Ankara (13) and Bursa (7).

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 140 professional contacts with verified work emails tracked across these 163 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 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 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.