Cybersecurity Companies — Across Türkiye
We list 665 cybersecurity companies from 66 provinces across Türkiye on CompAtlas — the busiest provinces are İstanbul, Ankara, and İzmir.
Cybersecurity companies provide penetration testing, vulnerability management and security operations services. Use the province breakdown below to jump to companies in your city.
İstanbul
Ankara
İzmir
Kocaeli
Antalya
Bursa
Konya
Mersin
Gaziantep
Adana
Muğla
Denizli
Sakarya
Kayseri
Düzce
Kahramanmaraş
Şanlıurfa
Diyarbakır
Balıkesir
Tekirdağ
Kırıkkale
Zonguldak
Ağrı
Edirne
Eskişehir
Burdur
Aydın
Kastamonu
Isparta
Manisa
Çanakkale
Erzincan
Afyonkarahisar
Samsun
Kırklareli
Hatay
Karabük
Adıyaman
Nevşehir
Tokat
Ordu
Sivas
Erzurum
Amasya
Rize
Çorum
Siirt
Tunceli
Sinop
Aksaray
Karaman
Trabzon
Kütahya
Osmaniye
Mardin
Iğdır
Giresun
Bilecik
Bolu
Çankırı
Muş
Niğde
Kars
Ardahan
Elazığ
Van
Frequently asked questions
How do you choose the best cybersecurity companies in Türkiye?
Ask for the team's certifications (OSCP, CISSP) and a sample report; put the test scope and the legal authorisation text in writing. Compare candidates on the same project scope, delivery terms and maintenance costs. The CompAtlas category list is not a quality or turnover ranking; sponsored visibility is not a measure of success.
How do you choose a Cybersecurity company?
Ask for the team's certifications (OSCP, CISSP) and a sample report; put the test scope and the legal authorisation text in writing.
How long does a Cybersecurity project take and what does it cover?
A penetration test is usually a few weeks of work, and a verification test is needed after findings are fixed. Continuous monitoring (SOC) is a separate subscription service.
How are cybersecurity companies on CompAtlas verified?
Before each company goes live, we check that its website is live; personal data is filtered out and only corporate information is kept. For details, see the data methodology linked from the About page.