The cybersecurity sector in Turkey features a mix of established defense contractors, telecommunications firms, and IT service providers. Companies like HAVELSAN, with 3,634 employees, specialize in defense and IT software integration, including cybersecurity. TÜBİTAK BİLGEM, a national R&D center, focuses on information security and advanced electronics, while NETAŞ develops end-to-end IT infrastructure and telecom technologies, including cybersecurity solutions. Doğuş Teknoloji provides customized solutions in RPA, data analytics, AI, and cybersecurity.
A notable pattern is the strong presence of companies involved in defense and space manufacturing, such as HAVELSAN and MilSOFT Yazılım Teknolojileri A.Ş., which integrate cybersecurity into broader defense systems. Many firms, including İşNet and MİA Teknoloji, also offer a range of IT services beyond cybersecurity, indicating a diversified technology landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
HAVELSANhavelsan.com
Defense and information technology software integrator specializing in command systems, war management, simulation, autonomous platforms, cyber security, homeland security and e-government technologies. |
3,634 | |||
| 2 |
TÜBİTAK BİLGEMen.bilgem.tubitak.gov.tr
A national R&D center specializing in information security, advanced electronics, and IT technologies through strategic partnerships, developing high-value technologies and products for competitiveness |
2,230 | |||
| 3 |
NETAŞnetas.com.tr
Develops end-to-end IT infrastructure and telecom technologies including cloud computing, 5G equipment, cybersecurity, and smart mobile devices for diverse sectors. |
1,008 | |||
| 4 |
Deloitte Turkeydeloitte.com.tr
The company provides audit, consulting, financial advisory, risk management, tax services to public and private clients across various industries globally |
978 | |||
| 5 |
Doğuş Teknolojid-teknoloji.com.tr
A technology company providing customized solutions in various sectors, specializing in RPA, data analytics, AI, cybersecurity, and sustainable practices with a focus on innovation and talent development |
667 | |||
| 6 |
ATPatptech.com
A global IT solutions provider specializing in trading software, restaurant management, digital transformation, sustainable energy products, venture capital, and technology investments |
580 | |||
| 7 |
TÜBİTAK BİLGEMgov.tr
Advanced research center specializing in informatics and information security, dedicated to enhancing knowledge and innovation in the field |
554 | |||
| 8 |
Mikrolinkmikrolink.com.tr
A global telecom system integrator and supplier offering end-to-end Data Centre solutions, IT Digital Technologies, telecom projects, and fiber optic connectivity components |
553 | |||
| 9 |
Kontrolmatik Technologieskontrolmatik.com
Provider of comprehensive solutions and services in LV/MV/HV, SCADA, automation, cybersecurity, and IoT for the energy, transportation, industrial, and mining sectors |
492 | |||
| 10 |
İşNetisnet.net.tr
Aiming to be a leader in digital transformation, the business offers services such as robotic process automation, IoT, cyber security, and artificial intelligence |
347 | |||
| 11 |
Gentel Telekomünikasyon A.Ş.gentel.com.tr
A telecommunication service provider offering high-quality, cost-effective solutions, with expertise in certifications for leading technology brands and turnkey project management |
334 | |||
| 12 | 251 | ||||
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| 13 |
MilSOFT Yazılım Teknolojileri A.Ş.milsoft.com.tr
Specializes in System Integration and Software Development, with expertise in C4I, Tactical Data Links, Cyber Security, and providing solutions to global defense markets |
229 | |||
| 14 |
ParamTECHparamtech.com.tr
Specializing in fintech, the technology team offers infrastructure services in various areas including digital wallets, AI, fraud prevention, and credit systems |
209 | |||
| 15 |
MİA Teknolojimiateknoloji.com
Develops tailored security, defense, authentication, health IT, smart transportation, sustainable energy, metaverse, and cybersecurity solutions with R&D and on-site support. |
99 | |||
| 16 |
Platin Bilişimplatinbilisim.com.tr
Specializing in cybersecurity solutions with over 20 years of experience, providing services in digital security, data protection, and IT consultancy for various industries |
87 | |||
| 17 |
ArkSignerarksigner.com
Provides secure digital identity verification, electronic signatures, and blockchain-based solutions for various sectors using mobile devices. |
71 | |||
| 18 |
Soitron Türkiyesoitron.com.tr
Cybersecurity integrator specializing in network and IT security services, offering tailor-made solutions through leading technologies and partnerships with world-renowned vendors |
64 | |||
| 19 |
PURE7pure7.com.tr
A technology company specializing in digital solutions, advanced security, performance, and integration, with a focus on investing in young talents and innovation |
49 | |||
| 20 |
Secure Future Bilgi Teknolojilerisecurefuture.com.tr
Specializing in cyber security solutions and services, the company builds a secure future through technology and innovation for global businesses in various industries |
42 | |||
| 21 |
Kron Technologieskrontech.com
Krontech provides innovative solutions for digital transformation in infrastructure, operations, and security worldwide, with a focus on high technology and quality products |
41 | |||
| 22 |
Techsigntechsign.com.tr
Provider of cutting-edge internet identity verification solutions, ensuring legal compliance, security, and instant verification for businesses and users |
30 | |||
| 23 |
Qubitriumqubitrium.tech
The company specializes in developing advanced quantum technologies for cryptography, communication, and sensing, offering products and services to industrial organizations |
20 | |||
| 24 |
Opinnateopinnate.com
Opinnate provides an innovative automation technology for holistic security policy management, analysis, optimization, and change operations with an end-to-end customer experience |
18 | |||
| 25 |
Protecprotecsolutions.ai
Specializing in fraud prevention, our company offers innovative solutions to protect organizations from financial losses and preserve their security |
2 | |||
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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