Top Cybersecurity Companies in Eastern Europe 2026 Rankings & 484 Client Reviews for 24 Service Providers

We have a list of 24 cybersecurity companies in Eastern Europe. This list contains matching case studies and references, 484 customer reviews, hourly rates, team size and much more. Use the appropriate filter options to find the best Cybersecurity Company for your business requirements.

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List of the Best Cyber Security Companies in Eastern Europe

  • 20% Cyber Security

    Digital Forensics Attack Detection & Response Network Security Penetration Tests
    5,001-10,000
    > €10,000
    €100 - €149
    Warsaw, Poland + 9
    From Expertise to Impact, The emagine Way More than a mere supplier, we act as a dependable partner—working with clients to tackle their toughest obstacles. By pairing experienced specialists on our team with a worldwide network of carefully screened consultants, and using an insight-led delivery approach, we design effective solutions a... Read More
    Website
  • 10% Cyber Security

    11-50
    > €10,000
    < €25
    Sofia, Bulgaria + 1
    Fusion of healthcare and technology MY Synergy is a recognized health technology company that helps reshape healthcare, pharmaceuticals, medical training, and insurance. By pairing deep industry know-how with cutting-edge technology, we close the distance between real business demands and modern digital answers. Our platform uses s... Read More
    Website
  • 15% Cyber Security

    Digital Forensics Attack Detection & Response Cyber Attack Simulation Network Security Penetration Tests Cybersecurity Device Management
    501-1,000
    > €50,000
    €100 - €149
    Dnipro, Ukraine + 1
    Trusted R&D Partner for More Than 20 Years Apriorit is a software engineering partner specializing in cybersecurity and artificial intelligence. Around the world, we support technology enterprises, mid-sized organizations, and ambitious startups with: • Tailored software product development • Adoption of AI and ML capabilities • Moderniz... Read More
    Website
  • 10% Cyber Security

    5,001-10,000
    > €1,000
    €25 - €49
    Cluj-Napoca, Romania
    Clients first, Foresight, Teamwork. Based in Tokyo, the multinational NTT DATA Group includes NTT DATA Romania, a company delivering high-quality professional services across more than 50 countries. Its capabilities span consulting, software and systems engineering, and outsourced business IT operations, supported by strong local e... Read More
    Website
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