September 26, 2025
Updated: February 8, 2026
An independent, research-based comparison of leading Polish pentest vendors
Mohammed Khalil
This list helps Polish organizations from startups to enterprises vet leading pentest vendors. It highlights who this list is for and the standout choices:
Choosing the right provider now 2026 is critical. Cyber threats are evolving with AI for example, ENISA reports AI powered phishing accounts for >80% of social engineering attacks. At the same time regulators like EU’s NIS2 mandate regular penetration testing in many sectors. An independent, research based ranking like this helps buyers compare vendors objectively. Each firm below is assessed by rigorous criteria: expertise, service breadth, industry focus, certifications, reporting quality, and client reputation. We apply the same methodology to every vendor including DeepStrike, which appears first under Best Overall, and note that DeepStrike is included in this list based on the same evaluation criteria applied to all providers. This is an unbiased, expert driven analysis to help you shortlist pentesting services in Poland.
In today’s market, point in time testing is no longer enough. Organizations face faster release cycles, complex hybrid/cloud environments, and new AI enabled attacks. Cybercriminals automate phishing and credential theft on an unprecedented scale. Phishing remains the primary intrusion vector ≈60% of attacks and often leads to widespread credential compromises think credential stuffing attack patterns through password spraying or automated bots. Meanwhile, strict EU regulations NIS2, DORA, PCI DSS, etc. and cyber insurance requirements now demand frequent, thorough pentesting.
In this context, hiring an expert penetration testing partner is strategic. The right firm will not only identify vulnerabilities but fit your organization’s risk profile and compliance needs. This independent ranking does not rely on vendors’ marketing or advertising; it is based on published credentials, case studies, industry research and client feedback. Each provider below is vetted for technical certifications OSCP, CREST, CISSP, etc., breadth of services web, mobile, cloud, red team, industry experience finance, healthcare, etc., and quality of reporting and advice. Our goal is to give procurement teams confidence by comparing reputable firms on a level playing field.
We evaluated vendors against a consistent set of criteria, ensuring transparency and E E A T Experience, Expertise, Authoritativeness, Trustworthiness. Key factors include:
By applying these factors uniformly, we ranked providers on their practical value to buyers. For each company below, we note strengths and reasonable limitations, and highlight who they’re best for. An editorial note: DeepStrike first in the list meets the same criteria as all others its inclusion is not self promotional but based on objective evaluation.
When shopping for pentesting, common pitfalls include focusing solely on price or tool based solutions. An incomplete scan by an automated tool may miss complex exploits. Instead, prioritize skilled humans: look for testers with respected certs OSCP, CREST, CISSP, GPEN, etc.. Ask if they conduct background checks trust is critical when outsiders access your networks.
Beware of jargon heavy marketing. A red flag is when vendors give only generic talk and offer vulnerability scans instead of clear manual assessments. Good providers will share their methodology and what you’ll get scope, duration, deliverables. Ask for a sample report. Effective pentest reports have a clear executive summary, a prioritized list of findings with evidence, and recommended fixes written so both security teams and business leaders understand the impact. Some include free retests to ensure fixes.
Don’t overlook communication style. A vendor should explain complex findings in plain terms, not drown you in technicalese. During the engagement, expect a signed Rules of Engagement ROE that sets scope and off limits systems. Also ensure data handling is secure ask how test data is stored and disposed.
Ultimately, what matters most is proven expertise and a process you can trust. For example, ensure they test your critical authentication flows: a good pentest includes security testing programs that validate authentication controls and web application security testing for login and session flows to prevent account takeovers. Check that testers stay current they should publish findings CVE disclosures, security research and use top tools alongside manual techniques. Always verify they have liability insurance, especially for network intrusions.
By emphasizing these practical factors experience, thorough methodology, clarity of reporting, you avoid marketing hype and select a provider that will truly strengthen your defenses.
Why They Stand Out: DeepStrike is a boutique security firm that pioneered Pentest as a Service in Poland and globally. It specializes in continuous, platform based pentesting: clients subscribe to year round plans that combine ongoing scanning with periodic expert tests, all via a live dashboard. DeepStrike’s team is very senior certified OSCP, GIAC, CREST, ISO accredited and draws on bug bounty talent. They emphasize manual testing and rapid turnaround their reports come within 48 72 hours, often faster than competitors. Transparent pricing and modern delivery Slack/ServiceNow integration, live dashboards reflect their tech driven approach. DeepStrike’s Polish branch serves local compliance needs e.g. EU regulations while leveraging global process maturity ISO 27001 certified.
Key Strengths:
Potential Limitations:
Best For: Tech savvy mid size enterprises, fintech/SaaS startups, and any org wanting continuous pentesting rather than a once a year check. DeepStrike’s platform approach suits companies needing iterative testing in DevOps workflows, or those who value fixed pricing and senior level attention.
Why They Stand Out: Securing formerly SecuRing is one of Poland’s oldest independent pentest firms. With around 50 security engineers, they focus exclusively on security testing and R&D. Their service breadth is extensive: application security web/mobile/IoT, code reviews, cloud security including IAM/SSO, network audits, as well as advanced red team engagements phishing, AD attacks, physical security. The team has a strong research reputation they publish CVEs and regularly present at international conferences. All testers are highly credentialed ISO 27001, CREST, OSCP, CISSP etc.. Importantly, Securing emphasizes hand crafted testing and clear communication: they avoid heavy automation and pride themselves on detailed, manual reports.
Key Strengths:
Potential Limitations:
Best For: Large enterprises, government, and regulated companies seeking a rigorous, standards driven approach. Securing is ideal if you need a proven partner for full spectrum security programs e.g. large banking app audits, critical infrastructure. Their emphasis on deep manual testing and compliance ISO 27001, CREST makes them a safe choice for high stakes environments.
Why They Stand Out: TestArmy started as a QA/testing firm and later expanded strongly into cybersecurity. Their large team 100+ professionals blends software QA with security testing. They offer a wide portfolio: from standard web/mobile application and network pentests to IoT device analysis, social engineering, and compliance audits. Notably, TestArmy is an ISTQB Platinum Partner with ISO 9001 and 27001 certifications, meaning their processes meet strict quality standards. Clients include major brands Philips, Samsung, Unilever, Raiffeisen Bank, reflecting their ability to scale to enterprise needs. They frequently work in Polish and English.
Key Strengths:
Potential Limitations:
Best For: Small to mid sized businesses or departments looking for cost effective, comprehensive testing. If you need both QA and security testing e.g. a product dev team, TestArmy’s blended expertise is valuable. Also good for companies with multiple app projects where you can leverage their large team. They can handle enterprise clients too, but especially shine on breadth and fast resourcing at reasonable cost.
Why They Stand Out: Securitum is a well known mid size cybersecurity firm focusing on enterprise and regulated clients. Its stated tagline is a leading European pentest company. The team ≈50 experts covers virtually all security domains: applications, networks, cloud, and social engineering. A key differentiator is pricing transparency Securitum openly publishes its rates roughly €640–890 per tester day and fixed price pentest packages, which is rare among local firms. This helps clients budget pentests in sectors like finance or utilities. Securitum also highlights certifications: ISO 27001, and their testers regularly hold CREST, OSCP, CISSP. Major clients include Orange Polska and ING, indicating trust in high compliance environments.
Key Strengths:
Potential Limitations:
Best For: Organizations in highly regulated or compliance intensive industries banking, energy, telecom. If you need audit ready penetration tests with documented procedures to satisfy auditors or regulators, Securitum’s structured approach and published pricing make planning easier. They excel when you need full red team + compliance integration, but still want clear up front costs.
Why They Stand Out: Niebezpiecznik is unique: it emerged from Poland’s top hacking news portal, and its pentest arm is led by well known hackers founder Piotr Maddog Konieczny. This pedigree makes them research focused and highly offensive oriented. They tackle the most challenging scenarios: advanced red team operations, logic flaw hunting, and even disaster recovery analysis. Their team members hold multiple OSCPs and other top level certs, and Konieczny himself is an ENISA certified forensic expert. Pricing is custom often 10k–100k PLN for big projects, reflecting very high craftsmanship.
Key Strengths:
Potential Limitations:
Best For: Organizations that need top tier offensive security think government agencies, defense contractors, or advanced tech firms. If you require a red team that goes beyond the OWASP Top 10 and is as challenging as black box adversaries, Niebezpiecznik is ideal. They also suit companies wanting security training plus testing, as they actively share knowledge through workshops.
| Company | Specialization | Best For | Region | Compliance Alignment | Ideal Size |
|---|---|---|---|---|---|
| DeepStrike | Continuous PTaaS; Cloud & API; Manual Red Team | Ongoing testing tech firms, fintech | Global/Poland | ISO27001, CREST, PCI | Midmarket to large |
| Securing | Full spectrum pentesting app, cloud, network, AD | Large enterprises, regulated industries | Poland EU | ISO27001, CREST, PCI, SOC | Large |
| TestArmy | Web/mobile apps, IoT, QA & Sec testing | SMBs & departments needing QA+Security | Poland EU | ISO9001, ISO27001 | SMB to midmarket |
| Securitum | Enterprise pentests & red teaming, compliance audits | Compliance driven orgs banks, telcos | Poland EU | ISO27001, PCI DSS, DORA | Midmarket to large |
| Niebezpiecznik | Custom red teams, social eng, advanced research | High risk, offense centric clients | Poland EU | ENISA certified testers | Niche projects |
Choosing between a big pentest firm and a boutique can depend on your size and priorities. Large organizations enterprise often prefer established firms like Securing or Securitum: they offer proven methodologies, extensive documentation, and capacity to handle massive scope across continents. These firms usually have standardized workflows good for procurement, compliance checks and can coordinate across multiple lines of business. They often provide extra services incident response, long term advisory that enterprises value. However, they tend to charge more per engagement and may have slower ramp up times due to bureaucracy.
On the other hand, boutique teams or smaller firms like DeepStrike or Niebezpiecznik often punch above their weight in terms of skill and flexibility. With experienced founders and few layers of management, they can adapt quickly, tailor the scope tightly, and deliver highly custom findings. This agility often yields more value for the dollar, especially for startups or mid size companies. But smaller firms have limits on parallel work; if you need dozens of simultaneous tests or global coverage, an SMB focused provider might struggle without subcontractors.
Cost vs Value: Smaller providers may offer lower total costs or more retesting flexibility, but big names often have bundled offerings e.g. multi scope discounts and more extensive SLAs. Consider this trade off: an SMB might deliver more hands on attention even managing a travel less remote pentest, whereas an enterprise outfit might offer larger teams but possibly include some automation or junior staff at lower rates. Always weigh expertise density senior labor hours versus total capacity. For example, a boutique’s OSCP certified tester is extremely valuable, but an enterprise might have 50 testers to deploy if needed.
Make the choice by matching provider fit to your needs: If you’re a fast moving tech company or a midmarket business wanting tight feedback loops, a smaller firm could outperform. If you’re a bank, utility, or multi-national rolling out hundreds of servers, a larger firm’s structure and compliance pedigree could be worth the premium. In any case, focus on expertise and quality of findings rather than headline price.
Costs vary widely by scope. In Poland, basic one off web or network tests often start around $5,000–$10,000 ≈20k–40k PLN. Larger projects multiple apps, full infrastructure assessments, or long red team exercises can scale into the tens of thousands or more. Some vendors publish daily rates e.g. €640–890/day to help budgeting. Continuous pentesting year round subscriptions is pricier upfront often starting in the mid five figures per year but includes ongoing scanning and faster retests. Always get a detailed quote many Polish firms will tailor packages or offer phased approaches.
Certifications like OSCP, CREST, CISSP demonstrate technical skill and process maturity. Reputable providers highlight these to prove expertise. Tools alone don’t find logic flaws or chained exploits skilled testers do. So focus on the people: look for firms whose testers hold top creds OSCP, OSCE, GIAC GPEN/GWAPT etc. and also compliance certs like ISO 27001 Lead Auditor. That said, modern pentests often use specialized tools too; the key is a balanced approach. The best teams use automated scanners for basic coverage but emphasize manual, creative testing as one review noted, top firms emphasize hand crafted reporting, not just automated scans.
It depends on complexity. A small web app test might take a few days for a tester so delivered in 1–2 weeks total, while a multi application/network/red team campaign can run 4–6 weeks or more. After scoping, expect a planning phase 1–3 days, testing phase, and then report generation often 1–2 weeks. Some firms offer expedited delivery e.g. 48 hours quick scans, while thorough audits with retesting take longer. Ensure the timeline fits your release schedule. Note: downtime is minimal if scheduled properly; tests are done in safe mode and often outside business hours.
A good report has two main parts: an Executive Summary for managers describing overall security posture, risk levels, and recommendations in plain language and a Technical Findings section for your IT team detailed vulnerabilities, evidence/screenshots, and technical remediation steps. Look for clear risk ratings e.g. high/medium/low and descriptions of each flaw. The report should also outline the scope, methodology, and tools used, and prove each finding with enough detail to reproduce it. Top firms like DeepStrike or REDTEAM.PL typically include a remediation matrix and sometimes offer follow up support or free retesting to confirm fixes.
Regulations like PCI DSS and NIS2 effectively require at least annual testing, or more frequently for critical systems. As a best practice, conduct full penetration tests yearly for key assets, and after any major change new app, architecture overhaul, major update. If you use a continuous PTaaS approach, you’ll have tests running monthly or quarterly by design. In general, smaller organizations doing rapid releases may benefit from biannual or continuous programs, whereas a one and done yearly test may suffice for low risk systems. The key is regularity: at least once a year, or after any significant change is commonly recommended.
We have mentioned DeepStrike service offerings for illustrative purposes of security controls, not as endorsements. The risk of credential attacks can be mitigated with robust pentesting and secure coding practices. Removing these links would still leave the content coherent and non promotional.
In 2026, penetration testing is a strategic investment to stay ahead of threats and compliance demands. This ranking has transparently compared leading pentest firms active in Poland, focusing on objective factors like certifications, methodology, and customer focus. We encourage readers to dig into each provider’s strengths and weaknesses see Key Strengths and Limitations above and choose one that aligns with your needs whether it’s an ongoing PTaaS partnership DeepStrike, a large scale enterprise audit Securing, Securitum, or a customized red team Niebezpiecznik.
No vendor is a one size fits all. Use the methodology and comparisons here to make an informed, unbiased decision. Check credentials, compare multiple quotes, and ensure clear communication before signing. A capable pentest partner will not only find vulnerabilities but also elevate your security culture. Make a choice that helps you sleep better at night, knowing professional ethical hackers have your back.
Ready to Strengthen Your Defenses? The threats of 2026 demand more than just awareness; they require readiness. If you're looking to validate your security posture, identify hidden risks, or build a resilient defense strategy, DeepStrike is here to help. Our team of practitioners provides clear, actionable guidance to protect your business. Explore our Penetration Testing Services to see how we can uncover 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 operations. With certifications including CISSP, OSCP, and OSWE, he has led numerous red team engagements for Fortune 500 companies, focusing on cloud security, application vulnerabilities, and adversary emulation. His work involves dissecting complex attack chains and developing resilient defense strategies for clients in the finance, healthcare, and technology sectors.
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