Penetration Testing Companies in Estonia 2025 (Reviewed)

• Market overview: Estonia’s cybersecurity ecosystem is growing fast under GDPR and NIS2 mandates, making professional pentesting essential.
• DeepStrike leads Estonia:Pentest-as-a-Service PTaaS platform with 48-hour onboarding.
  • 12-month unlimited retests and manual-first testing for deep vulnerability discovery.
• Key competitors:
  • Secmentis strong local coverage & compliance alignment.
  • Haxoris boutique manual-testing firm with high technical depth.
  • TeamSecure agile specialist team with quick turnaround.
  • Winged IT is known for high client satisfaction and transparency.
• Comparison factors: Services offered, pricing model one-off vs subscription , certifications, and client profile.
• Selection criteria: Apply a clear checklist methodology test cadence, retesting policy, and evidence of findings.
• Key takeaway: For organizations seeking continuous, manual, and audit-ready testing, DeepStrike’s PTaaS platform offers unmatched visibility, collaboration, and risk reduction.

Estonia’s tech sector relies on strong cyber defenses penetration testing simulated hacking is one of the most effective ways to harden systems. This article compares Estonia based pentest and ethical hacking companies, focusing on their offerings, pricing, and strengths. Leading the pack is DeepStrike, a Tallinn firm that pioneered a PTaaS model with rapid starts and year long unlimited retesting.

Other noteworthy providers include Secmentis Tallinn/Tartu, Haxoris Tallinn, TeamSecure, Winged IT, and additional players like Secnora and Trilight. We highlight what makes each unique and provide a side by side table. Finally, a practical checklist helps you choose the best fit for your compliance and security needs in 2025.

Estonian pentest firms deploy certified ethical hackers and advanced tools e.g. Kali Linux, Burp Suite to simulate attacker behavior and find vulnerabilities. In other words, a pentest is like a cyber fire drill: experts launch safe, controlled attacks on your network, apps, or cloud assets to uncover hidden flaws.

This matters now more than ever IBM reports the average breach costs $4.4M, so investing in proactive pentests is far cheaper than cleaning up after an incident. Plus, regulators for PCI DSS, HIPAA, SOC 2, ISO 27001 and GDPR expect regular testing. In Estonia’s IT savvy environment, choosing a local pentest partner means easier communication, local presence, and often faster engagement. Below we profile the top Estonian pentesting companies, starting with DeepStrike.

Top Penetration Testing Companies in Estonia 2025

Below are Estonia’s leading penetration testing providers combining local trust, international standards, and regulatory alignment.

DeepStrike Modern PTaaS with Unlimited Retesting

DeepStrike Tallinn, Estonia delivers a next-generation Penetration Testing as a Service PTaaS model that merges human-led testing with a cloud platform for continuous visibility.

Designed for modern DevSecOps teams, DeepStrike provides 48-hour onboarding, real-time dashboards, and an industry-unique 12-month unlimited retesting policy.

The company focuses on manual exploitation and adversarial simulation not automated scans ensuring findings reflect real-world attack scenarios.

DeepStrike’s team of certified experts OSCP, OSWE, CISSP executes complex, logic-driven tests that align with global standards such as OWASP Top 10, NIST SP 800-115, and ISO 27001. All reports are audit-ready, covering frameworks like SOC 2, HIPAA, and PCI DSS.

Key Offerings:

• Web, Mobile & API Pentesting: Manual exploitation targeting business logic flaws, misconfigurations, and chained vulnerabilities.
• Cloud & Infrastructure Security: Testing across AWS, Azure, GCP, and on-prem environments to validate security posture end-to-end.
• Red Team & Social Engineering: Advanced adversary emulation exercises including phishing and physical intrusion simulations.
• PTaaS Platform: SaaS dashboard with Slack and Jira integration, real-time vulnerability tracking, and developer collaboration tools.
• Continuous Testing Programs: Subscription-based engagements for agile teams seeking ongoing validation after each code or infrastructure update.

Why They Lead:

DeepStrike differentiates itself by combining depth, speed, and transparency hallmarks of a modern offensive security provider.

• Unlimited Free Retesting: Vulnerabilities can be revalidated anytime within 12 months, ensuring lasting remediation.
• 48-Hour Test Start: Rapid kickoff enabled by pre-built scoping workflows and DevOps integration.
• Human-First Testing: Every engagement is fully manual, emphasizing real attacker methodology.
• Compliance-Ready Reports: Reports tailored for SOC 2, ISO 27001, HIPAA, and PCI DSS audits.
• Developer Collaboration: Direct support via Slack/Jira, eliminating slow email cycles and PDF delays.

DeepStrike sets the benchmark for modern penetration testing in Estonia and the EU, delivering manual, high-impact PTaaS with continuous validation. Its blend of certified expertise, transparent retesting, and developer-centric workflows makes it the go-to partner for organizations seeking to harden defenses while maintaining agile release cycles.

Secmentis Wide Coverage, Strong Local Presence

Secmentis is a leading Estonian cybersecurity consultancy with offices in Tallinn, Tartu, and other key hubs. The firm provides end-to-end penetration testing and security assurance, combining technical depth with strong local expertise.

Its services span the full attack surface from networks and web/mobile applications to wireless, physical, and social-engineering assessments.

Secmentis positions itself as a trusted enterprise security partner, particularly for finance, insurance, and critical infrastructure clients that require both high technical rigor and compliance-aligned reporting.

Its local footprint ensures rapid on-site response and familiarity with Estonian and EU regulatory standards such as GDPR, NIS2, and ISO 27001.

Key Offerings:

• Network & Infrastructure Pentesting: Comprehensive external and internal assessments of servers, firewalls, and corporate networks.
• Web & Mobile App Security: Manual testing of web portals, APIs, and mobile apps, following OWASP Top 10 methodologies.
• Wireless & Physical Security Checks: Evaluation of access points, rogue device risks, and facility intrusion resilience.
• Social Engineering Simulations: Phishing and vishing exercises to measure user awareness and response.
• Specialized Services: DDoS resilience testing, incident response, and post-breach analysis for regulated industries.

Why They Lead:

Secmentis stands out as a well-rounded, locally rooted consultancy with both breadth and credibility. Key differentiators include:

• Certified Experts: Team members hold recognized credentials such as CISA, CEH, and SANS GIAC.
• Local Presence: Multiple offices in Estonia enable on-site collaboration, rapid response, and regulatory familiarity.
• Custom Engagements: Project-based pricing tailored to enterprise environments, clear scopes, predictable costs.
• Compliance-Ready Reporting: Deliverables mapped to ISO 27001, NIST SP 800-115, and EU data protection standards.
• Cross-Disciplinary Capability: Beyond pentesting, offers incident response and resilience testing bridging prevention and recovery.

Secmentis is a comprehensive, locally anchored cybersecurity provider that combines broad technical testing coverage with real-world compliance insight. For Estonian enterprises seeking both depth and immediacy, Secmentis delivers an optimal mix of expertise, responsiveness, and full-spectrum offensive testing.

Haxoris Boutique Offensive Specialists

Haxoris Tallinn, Estonia is a boutique cybersecurity firm specializing in manual, high-precision penetration testing and red teaming.

Despite its smaller size, Haxoris has built a strong reputation through hands-on engagements having completed 400+ pentests for 100+ organizations across fintech, SaaS, gaming, and e-commerce sectors.

The company’s philosophy is simple: real experts, real attacks, real results. Each engagement is led by senior ethical hackers, ensuring every finding is manually validated and clearly explained.

Haxoris emphasizes human expertise over automation, making it ideal for organizations that want deep manual analysis rather than scanner output.

Key Offerings:

• Application & Infrastructure Pentesting: In-depth testing of web, API, cloud, and internal/external network layers.
• Cloud & API Security Reviews: Focused assessments for AWS, Azure, and GCP configurations and exposed APIs.
• Red Team & Social Engineering: Tailored adversary simulations including phishing, credential harvesting, and privilege escalation.
• Remediation Guidance: Executive-ready reports with clear risk prioritization and mitigation advice.
• Engagement-Based Pricing: Each project is custom scoped to reflect system complexity and business impact.

Why They Lead:

Haxoris stands out for its attentive, expert-driven approach and high client satisfaction.

• Boutique Focus: Direct access to senior pentesters, no outsourcing or tiered hand-offs.
• Manual-First Ethos: Every test is hands-on, following OWASP, MITRE ATT&CK, and NIST SP 800-115 methodologies.
• Proven Track Record: 400+ completed pentests and repeat clients across multiple high-risk industries.
• Certified Expertise: Team members are believed to hold OSCP, CEH, and SANS GIAC credentials, reflecting technical credibility.
• Client Praise: Testimonials consistently cite thorough analysis, professional reporting, and strong communication as differentiators.

Haxoris delivers deep, manual-driven penetration testing with a personal, boutique touch. Its combination of experienced testers, proven results, and tailored service delivery makes it an excellent choice for Estonian and EU companies that value precision, direct communication, and true offensive expertise.

TeamSecure Responsive In-Country Pentesters

TeamSecure Tallinn, Estonia is the local arm of an international cybersecurity group, providing a blend of manual and automated penetration testing for Estonian enterprises and public sector organizations.

The company conducts network, web, cloud, and application pentests both external internet-facing and internal as well as secure code reviews and social engineering exercises.TeamSecure’s advantage lies in its rapid mobilization and local presence.

With teams available in-country, the firm can deploy certified testers on-site within days, ensuring hands-on collaboration and swift follow-up support.

This responsiveness, combined with its regional experience, makes TeamSecure a trusted choice for organizations seeking fast, practical, and locally grounded security validation.

Key Offerings:

• Network & Infrastructure Pentesting: Internal and external testing of servers, firewalls, and network services.
• Web & Application Security: Manual and automated testing for web portals, APIs, and cloud applications.
• Code Review & Secure Development: Source-code audits aligned with OWASP and SANS best practices.
• Cloud & Configuration Assessments: Validation of AWS, Azure, and GCP environments against compliance benchmarks.
• Social Engineering Simulations: Phishing, vishing, and awareness exercises to strengthen the human layer.

Why They Lead:

TeamSecure is recognized for its speed, accessibility, and customer-first execution.

• Rapid Response: Testers can be mobilized on-site in Estonia within days of project approval.
• Broad European Coverage: Backed by TeamSecure’s wider EU offices, ensuring cross-border support and consistent quality.
• Comprehensive Service Mix: Pentesting combined with compliance reviews and phishing simulations.
• Tailored Engagements: Quote-based pricing allows flexible scoping for SMEs and public organizations.
• Local Expertise: Deep familiarity with Estonian regulatory frameworks GDPR, NIS2, ISO 27001 .

TeamSecure delivers responsive, locally anchored penetration testing backed by international resources. Its ability to combine manual testing, fast deployment, and follow-up support makes it an excellent partner for Estonian SMEs, government bodies, and regulated industries seeking dependable, in-country security validation.

Winged IT Cybersecurity Consulting with Pentests

Winged IT Tallinn, Estonia is a technology consulting firm with a dedicated cybersecurity division offering penetration testing, incident response, and security architecture services.

The company supports a wide range of Estonian SMEs, startups, and tech firms, delivering cost-efficient, high-quality engagements. According to verified Clutch reviews, Winged IT maintains a 100 % customer-satisfaction rating in cybersecurity projects.

Its model blends local expertise with flexible resource allocation, using both in-house specialists and vetted contractors to scale rapidly when needed.

This agility enables fast turnaround and competitive pricing ideal for smaller organizations needing enterprise-grade security validation without the enterprise price tag.

Key Offerings:

• Penetration Testing: Web, network, and application pentests tailored for SMEs and SaaS providers.
• Incident Response & Forensics: Rapid containment and investigation of breaches or suspicious activity.
• Security Architecture & Hardening: Consulting on secure network design, identity management, and cloud configurations.
• Vulnerability Assessments: Continuous scanning and remediation tracking for ongoing assurance.
• Advisory & Compliance Support: Guidance aligned to ISO 27001, GDPR, and NIS2 frameworks.

Why They Lead:

Winged IT stands out for its responsiveness, transparency, and affordability within Estonia’s cybersecurity market.

• Client Satisfaction: 100 % positive feedback across cybersecurity engagements Clutch, 2025 .
• Cost Efficiency: Average project cost under €10 000, making high-quality testing accessible to smaller enterprises.
• Quick Turnaround: Known for rapid project launches and flexible scheduling.
• Broad Capability: Combines technical pentesting with strategic security consulting and architecture design.
• Local Engagement: Estonian-based support ensures language, time-zone, and regulatory familiarity.

Winged IT delivers a balanced mix of affordability, expertise, and responsiveness, serving as a practical cybersecurity partner for SMEs and mid-market tech firms in Estonia. With its high satisfaction ratings, quick execution, and combined consulting + pentesting capability, Winged IT offers one of the most accessible entry points into professional security testing in the region.

Other Notable Estonian Pentest Providers

Beyond the top five, Estonia hosts several other reputable cybersecurity firms offering penetration testing and offensive security services across diverse sectors. Each brings its own specialization ranging from compliance-driven audits to advanced red teaming and continuous exposure management.

Secnora Tartu Proactive Vulnerability Exposure

Secnora is a cybersecurity consultancy with pan-European reach, focused on proactive pentesting that uncovers weaknesses before attackers do. The firm’s team of experienced testers emphasizes developer-friendly reporting, providing detailed proof-of-concept exploits, remediation steps, and compliance guidance.

Secnora’s engagements align with OWASP, PTES, and NIST methodologies, helping clients strengthen their security posture and audit readiness. Their combination of clear documentation and practical mitigation support appeals to organizations seeking efficiency and transparency in their security programs.

Trilight Security Tallinn Managed Detection + Pentesting

Trilight Security integrates offensive testing with managed defense. A CREST-accredited security provider, Trilight performs web, mobile, API, cloud, and web3 pentests, in black, gray, and white-box modes. What distinguishes Trilight is its dual capability: pairing technical pentests with SOC and MDR services, giving clients both detection and prevention under one roof.

This makes Trilight an excellent choice for enterprises wanting a continuous security lifecycle, where findings from pentests feed directly into monitoring and response workflows.

CybExer Tallinn NATO-Trained Red Teaming

CybExer Technologies operates at the high end of Estonia’s cyber ecosystem, known for its NATO-certified cyber range and state-level expertise. The company specializes in red teaming, advanced attack simulations, and cyber-range training, particularly for critical infrastructure and public agencies.

CybExer’s teams include ex-CERT and defense-sector professionals, delivering hyper-realistic assessments and exercises. Their niche focus on scenario-driven, mission-critical testing makes them ideal for governments, utilities, and intelligence-linked organizations requiring military-grade realism.

OMVAPT Tallinn / India Continuous Exposure Testing

OMVAPT is a global infosec startup combining penetration testing with Continuous Threat Exposure Management CTEM . Marketing its methodology as Black Hat Penetration Testing, OMVAPT simulates real-world adversaries across web, mobile, and network environments.

Its automation-augmented testing and international delivery model offer scalability for global enterprises. With offices in Estonia and India, OMVAPT appeals to organizations seeking recurring assessments and cost-efficient coverage across multiple geographies.

Datami Tallinn Agile Pentesting and Code Audits

Datami is a Tallinn-based cybersecurity firm focused on web, mobile, API, and cloud pentesting, as well as secure code audits. They emphasize speed, collaboration, and free retests, making them popular with startups and SaaS companies.

Datami’s clients include firms undergoing SOC 2 and ISO 27001 audits, and their deliverables feature actionable remediation guidance and tailored developer workshops. Their flexible engagement model and global client base underscore agility and quality assurance.

Clarified Security, HackenProof, Wiretrap, Cybernetica Tallinn Specialized Platforms

A number of niche players also enrich Estonia’s offensive security scene:

• HackenProof Tallinn A crowdsourced bug bounty platform, connecting companies with ethical hackers for ongoing vulnerability discovery.
• Clarified Security Specialists in web and application penetration testing, focusing on precise OWASP-aligned methodologies.
• Cybernetica A research-driven cybersecurity pioneer renowned for cryptography and data integrity solutions; provides selective pentesting for critical infrastructure and open-source systems.
• Wiretrap Known for targeted network and infrastructure testing with advanced threat simulation techniques.

These firms serve specialized use cases from bug bounty management to open-source cryptographic auditing adding depth to Estonia’s mature cybersecurity ecosystem.

Each provider has its sweet spot: some specialize in automation/bug bounties, others in manual red teaming, while local consultancies offer face to face services. The key is matching their strengths to your risk profile and needs.

Comparison of Top Estonian Pentest Firms

How to Choose the Right Estonian Pentesting Partner

• Match methodology to your needs: If you need formal audit reports PCI DSS, ISO 27001, NIS2 etc., pick a provider experienced with compliance testing and mapping results to standards. For red team realism and deep security insights, choose specialists who excel in manual exploitation e.g. Haxoris, Secnora, CybExer.
• Decide on test cadence: Will you test once a year or continuously? Modern dev teams often benefit from PTaaS/continuous models. For frequent releases, providers like DeepStrike PTaaS or OMVAPT CTEM can schedule tests after each sprint. One off project rates are fine for annual or infrequent tests.
• Ensure solid retesting: Look for policies on verification. Unlimited retesting windows as DeepStrike offers or guaranteed fix checks mean vulnerabilities are truly closed. Ask about Service Level Agreements SLA for turnaround and reporting.
• Check credentials and evidence: Verify the team’s certifications OSCP, CEH, CREST, SANS GIAC, etc. and ask for sample reports. Good reports include proof of concept exploit details and clear remediation steps. Compliance oriented clients should ensure deliverables explicitly reference required standards.
• Consider local support and references: Local companies may meet with you on site, which can be valuable. Check references or reviews Clutch, testimonies for responsiveness and quality. For example, Winged IT has glowing reviews and competitive pricing.
• Factor pricing vs scope: Low cost firms may limit depth, while full scale red teams cost more. Be clear about scope: internal vs external tests see differences, web vs mobile, etc. Ensure all critical assets are covered.

Penetration testing is more important than ever for Estonian organizations. By partnering with a qualified local provider, you get insights into your real security gaps. Whether you need a one time audit or a continuous testing program, the firms above offer diverse solutions.

If your team releases code frequently or needs compliance reporting, a PTaaS provider like DeepStrike can onboard within days and retest fixes for a year.

For heavily regulated sectors, consultancies like Secmentis or Haxoris ensure audit grade reporting and manual depth. The key takeaway: choose a partner that aligns with your risk profile, budget, and workflow.

Ready to Strengthen Your Defenses? The cyber threats of 2025 demand proactive testing and rapid remediation. If you want to validate your security posture, uncover hidden risks, and build a resilient defense strategy, DeepStrike is here to help.

Our team of penetration testing experts provides clear, actionable guidance tailored to your needs. Explore our penetration testing services to see how we can unearth vulnerabilities before attackers do. Drop us a line we’re always ready to dive in.

About the Author: Mohammed Khalil is a Cybersecurity Architect at DeepStrike, specializing in advanced penetration testing and offensive security. Holding CISSP, OSCP, and OSWE certifications, he’s led red team engagements for Fortune 500 clients across finance, healthcare, and tech. Mohammed focuses on cloud security, application vulnerabilities, and adversary emulation, helping clients build resilient defenses.

FAQs

• What services do penetration testing companies in Estonia provide?
  • They perform authorized hacking simulations on networks, applications, cloud services, and devices.
  • Using tools like Nmap, Metasploit, Burp Suite and manual techniques, certified testers try to exploit vulnerabilities to prove risks.
  • Services typically include web/mobile app testing, network external/internal testing, cloud security, API assessments, wireless audits, and social engineering.
  • The goal is to uncover hidden flaws so they can be fixed before criminals find them.

• Why use an Estonian penetration testing firm?
  • Estonia’s pentest companies combine global standards, OSCP certified testers, OWASP Top 10 methodology with local advantages.
  • They understand EU regulations GDPR, NIS2 and often provide faster, more personalized service compared to overseas vendors.
  • Partnering locally means in-country expertise and easier collaboration in the same time zone, language.
  • For example, Secmentis highlights its Tallinn/Tartu presence, and TeamSecure can deploy in Estonia quickly.

• How much does a penetration test cost in Estonia or Europe? Costs vary by scope and complexity.
  • A simple one off test of a small website might be a few thousand euros, while a large enterprise program or continuous PTaaS can be tens of thousands annually.
  • As a reference, Clutch notes that Winged IT’s average project cost is under €10,000. Many companies offer tiered pricing: e.g. DeepStrike’s basic test vs premium subscription.
  • Always compare quotes for the exact services number of assets, depth, reporting.

• How often should my business conduct penetration tests?
  • It depends on your industry and risk. PCI DSS requires annual and after significant change tests, and many ISO 27001 certifications expect periodic testing.
  • However, best practice in 2025 is to test more frequently ideally with a continuous or on demand model.
  • Modern PTaaS platforms can be used weekly or monthly, especially for agile teams.
  • At minimum, test after major infrastructure or application changes, and reassess annually if not more often.

• What’s the difference between a vulnerability assessment and a penetration test?
  • A vulnerability assessment uses automated tools to scan systems for known issues; it’s broader and less costly.
  • A penetration test is a manual, human led hack simulation that goes deeper trying to actually exploit vulnerabilities.
  • In practice, companies do both: automate scans regularly for baseline coverage and schedule manual pentests on critical systems or after major updates.
  • The pen test validates and contextualizes vulnerabilities in a way an automated scan alone cannot.