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    Top Penetration Testing Companies And Pentest Service Providers

    Cybersecurity is the broad term covering protecting sensitive information, maintaining trust, and ensuring the integrity of digital systems and communications.

    Given the prevalence and potentially harmful consequences of cyber attacks, investing in robust cybersecurity measures is essential for mitigating risks and safeguarding your business against different IT threats. 

    Penetration testing is a crucial component of any effective cybersecurity strategy. It involves simulating real-world cyber attacks on a system, network, or application to identify potential vulnerabilities and weaknesses. Thus, hiring a reliable penetration testing services provider is vital at any level, whether you run a business or work for the government.

    In this article, we list the top penetration testing companies that serve all types of organizations that utilize digital technologies and manage sensitive information, regardless of their size, industry, and budget. Read on to learn more about the most skillful and experienced penetration testing experts.

    Penetration Testing Companies At A Glance

    Company Location Services
    1. ScienceSoft McKinney, TX, USA Penetration testing, QA, software development
    2. CYBRI New York, NY, USA Manual web, mobile and API pentests, cloud and network pentests
    3. Cyber Protect Warren, MI, USA Cybersecurity, managed IT, endpoint protection
    4. Vumetric Toronto, Canada Internal and external pentests, web app pentests
    5. Cyberscope Rhodes, Greece Penetration testing, smart contract audits, KYC
    6. White Knight Labs Guys Mills, PA, USA Penetration testing, attack simulation, security assessments
    7. UnderDefence New York, USA MDR, penetration testing, incident response
    8. FRSecure Edina, USA Penetration testing, purple team, social engineering
    9. Framework Security Austin, USA Risk and compliance, penetration testing, managed security
    10. Secureworks Atlanta, USA, plus offices in the UK, France, UAE and Australia Threat hunting, vulnerability assessment, ransomware readiness
    11. Astra Claymont, USA; New Delhi, India Web, mobile, cloud and API pentests
    12. Cyberhunter Ottawa and Toronto, Canada; New York, USA Penetration testing, cloud and website security
    13. Rapid7 Boston, USA Penetration testing, IoT security testing, incident response
    14. TechMagic Lviv, Ukraine; Krakow, Poland; New York, USA; London, UK Penetration testing, security testing, managed security
    15. Agile Security Platform Newtown, USA Penetration testing, vulnerability scanning, risk assessment
    16. TrollEye Security Georgia, USA Penetration Testing as a Service (PTaaS), vulnerability management
    17. Sekurno Tallinn, Estonia; Sao Paulo, Brazil Penetration testing, DevSecOps

    The Best Penetration Testing Service Providers For The Ultimate Protection

    1. ScienceSoft

    best penetration testing company

    With a 35-year legacy in IT, ScienceSoft is one of the most experienced technological partners offering the best penetration testing services. Boasting a team of over 750 top-notch experts, the company has delivered 4,000+ successful projects across the healthcare, manufacturing, retail, and logistics industries. Headquartered in the USA with additional offices in Europe, the UK, and the UAE, ScienceSoft delivers its comprehensive services to clients in over 70 countries, cooperating with such renowned names as Walmart, eBay, NASA, Rakuten Viber, IBM, and Baxter.

    ScienceSoft‘s penetration testing services include software, networks, data security, and cybersecurity awareness. Their team of Certified Ethical Hackers and seasoned security engineers can identify and mitigate security flaws in various technological environments, including blockchain, cloud, AI, and IoT. From safeguarding web and mobile applications to fortifying data storage and encryption, ScienceSoft ensures protection against unauthorized access and cyber threats.

    Recognized by prestigious entities like Clutch, Techreviewer.co, The Manifest, GoodFirms, and many others, ScienceSoft addresses the unique security needs of businesses worldwide. Whether you require external or internal application audit, social engineering, remote access, wireless, open-source intelligence, or red team penetration testing, ScienceSoft can cover everything, adhering to the best cybersecurity practices and industry standards.

    • Services and expertise: penetration testing, product testing & QA, software development, web development, mobile app development, application services, UI/UX, infrastructure services, managed IT services
    • Location: McKinney, TX, USA
    • Team size: 750+ experts
    • Industries: Finance, Banking, Insurance, Manufacturing, Healthcare, Transportation and Logistics, Telecommunications, Oil and Gas, Retail, Construction, Travel and Hospitality
    • Clients: Walmart, eBay, NASA, Rakuten Viber, IBM, Baxter

    2. CYBRI 

    cybri

    Cybri is a US-based penetration testing provider specializing in helping SaaS and technology-driven companies safeguard their applications, APIs, LLMs, cloud environments, and infrastructure. With a team of senior ethical hackers certified in OSCP, OSCE, CEH, and CISSP, Cybri delivers in-depth security assessments across platforms like AWS, GCP, and Azure.

    The company supports SOC 2, HIPAA, and ISO 27001 compliance initiatives and plays a key role in M&A security due diligence. Beyond testing, Cybri equips clients with comprehensive remediation guidance, ensuring vulnerabilities are not only identified but effectively resolved, helping organizations strengthen resilience and meet enterprise security standards with confidence.

    • Services & expertise: manual penetration testing (web/mobile/app/API), cloud & network pentesting, Red Team, PTaaS reporting/collaboration, remediation & retesting
    • Location: New York, NY, USA
    • Team size: up to 50 experts
    • Industries: SaaS & Cloud, FinTech, Healthcare, eCommerce 

    3. Cyber Protect 

    Cyber Protect Penetration testing companies

    Cyber Protect is a leading cybersecurity company providing services to small and large businesses. Based in Michigan, this company is renowned worldwide for its commitment to excellence. With a team of seasoned security experts, Cyber Protect can not only identify but rectify vulnerabilities within your digital system. They emphasize the importance of proactive measures over-reactive responses, helping clients secure their operations before a breach occurs.

    By tailoring penetration testing plans to fit the unique needs, size, and complexity of your business, they ensure comprehensive protection, including specialized assessments for compliance with CIS, HIPAA, GDPR, PCI-DSS, and NIST standards. 

    At its core, Cyber Protect is more than just a provider of security solutions – this company will become your dedicated partner and deliver more efficient results than any IT service provider.

    • Services and expertise: cybersecurity, managed IT services, endpoint protection & remediation, backup & disaster recovery, cyber forensics, website design
    • Location: Warren, MI, USA
    • Team size: up to 10 experts
    • Industries: FinTech, Legal, eCommerce, Healthcare, Logistics & Transportation, Media & Entertainment, Retail, and others

    4. Vumetric

    Volumetric

    Meet Vumetric, one of the best penetration testing companies globally with an impressive 25-year experience in cybersecurity. Boasting 2500+ completed projects and over 80 reputable certifications and awards, Vumetric stands as the top choice. 

    Specializing in pentest services, the firm offers full-cycle web and mobile penetration testing, cloud penetration testing, as well as network penetration testing. Unlike other providers, Vumetric’s expert assessment surpasses the limitations of automated testing, guaranteeing the identification of all vulnerabilities.

    Endorsed by globally recognized brands such as Zoom, McDonald’s, IBM, Siemens, and more, Vumetric offers robust cybersecurity analysis and support to detect and resolve all insecurities within your organization.

    • Services and expertise: internal and external penetration testing, web app penetration testing, medical device penetration testing, cloud security services, cyber maturity assessment, SCADA cybersecurity assessment, red team security services, compliance services
    • Location: Toronto, Canada
    • Team size: up to 50 experts 
    • Industries: Energy and Utilities, Government, SaaS and Technology, Transportation and Logistics, Education, Healthcare, Manufacturing, Finance, Insurance

    5. Cyberscope 

    Cyberscope

    Cyberscope is the leading blockchain security firm, safeguarding over $1 billion in digital assets through comprehensive penetration testing, smart contract audits, and KYC services. With 1,800+ audits and real-world cyberattack simulations completed, they are a recognized and trusted authority in the Web3 space.

    Their meticulous process of identifying system weaknesses builds confidence in projects, verifies robust security, and helps to prevent breaches. Complementing the audits is Cyberscope’s stringent KYC offering, which validates project team identities using advanced algorithms while ensuring data confidentiality.

    Over 2,600 satisfied customers have experienced Cyberscope’s unparalleled blend of accuracy, privacy safeguards, and seal of approval that elevates digital efforts. As blockchain ventures seek integrity, Cyberscope delivers the credibility advantage.

    • Services & expertise: penetration testing, smart contract audit, KYC, bug bounty, custom solutions, NFT audit, formal verification, L1 audit
    • Location: Rhodes, Greece
    • Team size: 20+ experts
    • Industries: Blockchain, Cybersecurity, Web3

    6. White Knight Labs 

    White Knight Labs

    White Knight Labs is a leading cyber security company that specializes in penetration testing services for a wide range of companies. The company works closely with its clients to create risk-informed strategies that enhance their digital defenses and is renowned for tailored security assessments designed to meet the unique challenges of each client’s environment.

    With a team of engineers from diverse and prestigious backgrounds – including army special operations, NSA instructional roles, and pivotal contributions to Microsoft’s Windows kernel security – White Knight Labs offers unmatched services. Their penetration testing capabilities include network, application, cloud, and wireless, ensuring a comprehensive vulnerability analysis across all digital fronts.

    With a proactive approach, they are committed to fortifying defenses, safeguarding business continuity, and enhancing data security protocols to offer businesses peace of mind. Companies searching to strengthen their cyber resilience and mitigate the impact of cyber threats will be their white knight, delivering a broad spectrum of penetration testing services, exceptional expertise, and deep industry insights.

    • Services and expertise: penetration testing, attack simulation, security assessment, incident response, compliance, and advisory
    • Location: Guys Mills, PA, USA
    • Team size: up to 50 experts
    • Industries: Retail, Technology, FinTech, Healthcare, Media, Consulting, Government, Telecom, and others

    7. UnderDefence

    UnderDefence Penetration testing companies

    Covering 160+ tests and detecting 1140+ vulnerabilities per year, UnderDefence is one of the best penetration testing vendors. When selecting it as your go-to cybersecurity partner, expect nothing less than personalized penetration testing (black box, gray box, and white box), comprehensive reports with exclusive recommendations, a professional attestation letter, and additional complimentary services.

    Holding numerous awards showcasing its leading position in the cybersecurity niche, no wonder UnderDefence has been chosen and trusted by over 500 companies worldwide.

    • Services and expertise: managed detection and response, penetration testing, incident response, vulnerability management, cloud security monitoring, compliance services, managed SIEM, managed SOC, advanced threat detection
    • Location: New York, USA
    • Team size: 100+ experts
    • Industries: Advertising and Marketing, Finance, Information Technology and Software, Government, Logistics and Supply Chain, Nonprofit, Education, Energy, Natural Resources

    8. FRSecure

    FRSecure Penetration testing companies

    External and internal pen testing, web app pen testing, wireless pen testing, physical bypass, and red teaming are the core penetration test services provided by FRSecure. Headquartered in Edina, USA, the company boasts over 14 years of experience in the industry, backed by 50+ certifications and 30+ prestigious awards.

    With their profound expertise and commitment to clients’ business principles and values, FRSecure can assist you in uncovering architectural and conceptual issues, ensuring your business is perfectly prepared and fortified against all types of digital attacks.

    • Services and expertise: penetration testing, purple team, social engineering, vulnerability scanning, virtual CISO, risk assessment, cloud security assessment, SOC 2 audit
    • Location: Edina, USA
    • Team size: 95+ experts
    • Industries: Education, Construction, Information Technology and Software, Finance, Healthcare, Nonprofit, Retail, Manufacturing, Legal

    9. Framework Security

    Framework Security Penetration testing companies

    Framework Security is one of the top penetration testing companies in the USA; it’s featured in Tech Accord, G2, Google, Gartner, and other authoritative industry publications. With 100% specialization in cybersecurity, the company operates with unwavering professionalism and a sincere commitment to quality services.

    Framework Security’s technical testing services encompass social engineering campaigns, APIs, mobile and web app pentests, and infrastructure penetration testing.

    • Services and expertise: risk and compliance, penetration testing, managed security, data protection, training
    • Location: Austin, USA
    • Team size: 10+ experts
    • Industries: Technology, Nonprofit, Healthcare, Manufacturing, Finance, Entertainment, Energy

    10. Secureworks

    Secureworks Penetration testing companies

    Secureworks is one of the best penetration testing companies, leveraging its proven goal-based testing methodologies and rich cybersecurity expertise. The company assists clients in addressing the most common as well as advanced security concerns, equipping them with all essential tools and best practices to confront prevalent threats.

    They have you covered with a broad range of services, including remote access vulnerability assessment, ransomware attack simulation, lost or stolen laptop response, cloud penetration testing, and internal threat detection. 

    With its 6 consecutive wins at GRRCON, 3 consecutive wins at DEFCON, and numerous other prestigious awards and certifications, you can trust that you’re selecting the most reputable and professional security testing company.

    • Services and expertise: threat hunting assessment, vulnerability assessment, ransomware readiness assessment, penetration testing, adversary exercises, app security testing, emergency breach hotline
    • Location: Atlanta, USA; Edinbourg, London, UK; Paris, France; Dubai, UAE; Sydney, Australia; Hyderabad, India; Tokyo, Japan; Bucharest, Romania
    • Team size: 1000+ experts
    • Industries: Education, Finance, Manufacturing, Software, Technology

    11. Astra

    Astra Penetration testing companies

    Focusing entirely on pen tests, Astra is one of the best penetration testing firms trusted by TEDs, Ford, Cosmopolitan, African Union, and other global leaders. Astra offers a distinctive pentest platform packed with a wide array of valuable features and capabilities, including manual pen testing, continuous scanning, vulnerability management, and an AI-assisted engine.

    Moreover, for maximum convenience, Astra’s clients have the flexibility to select a pricing plan tailored to their business size and specific needs, whether it involves an app, mobile, or cloud pen testing.

    • Services and expertise: web and mobile app pentest, cloud security pentest, API pentest
    • Location: Claymont, USA; New Delhi, India
    • Team size: 50+ experts
    • Industries: Advertising and Marketing, Entertainment, Automotive, Finance, Healthcare, Nonprofit

    12. Cyberhunter

    Cyberhunter Penetration testing companies

    Headquartered in Canada, Cyberhunter is one of the best penetration testing companies. It offers several popular categories of penetration testing, which are highly demanded by its customers: web app pentest, black box external pentest, post-breach internal pentest, and pentest-as-a-service. 

    Having a team of professionals with certifications from CISSP, OSCP, OSWP, CJIS Level 4, CompTIA Security+, and IBM, Cyberhunter is the best pentest company that guarantees professional, timely, and accurate results. 

    • Services and expertise: penetration testing, remote worker protection, cloud security, website security, endpoint security, audit and compliance, vulnerability scanning, cyber threat scanning, cyber security assessment
    • Location: Ottawa, Toronto, Canada; New York, USA
    • Team size: 10+
    • Industries: Hotels and Resorts, Law Firms, Finance, Healthcare, Manufacturing, Education, eCommerce and Retail

    13. Rapid7

    Rapid7 Penetration testing companies

    Specializing in cybersecurity, Rapid7 is the most experienced and trusted penetration testing firm in the USA. They’ve served 11,000+ global companies worldwide, including Discovery, Wyndham, Autodesk, and Domino’s. 

    With over 1000+ professionals on board, Rapid7 is one of those pentesting companies that hire not just good specialists but true experts with in-depth knowledge in areas such as cyberattacks, multi-function printer exploitation, endpoint protection bypass techniques, and security alarm system bypass, among others. 

    All these features help the Rapid7 team identify the best solutions according to your security goals, remaining the leading penetration company on the global stage. 

    • Services and expertise: penetration testing, IoT security testing, incident response, security consulting, managed detection and response, managed vulnerability management, managed application security 
    • Location: Boston, USA
    • Team size: 1000+ expderts
    • Industries: Media and Entertainment, Education, Finance, Healthcare, Advertising and Marketing, Software and Technology

    14. TechMagic

    TechMagic Penetration testing companies

    Being one of the top penetration testing service providers, TechMagic operates with confidence and precision when it comes to identifying system security flaws. The company excels in web and mobile app penetration testing, offering three types of app pen tests: black box, gray box, and white box. Also, they provide social engineering and network penetration testing services. 

    TechMagic will guide you through the entire pentest process, encompassing preparation, penetration testing itself, reporting, and results overview, typically completed within 30 days.

    • Services and expertise: penetration testing, security testing, managed security, ICO 27001 implementation, CTO-as-a-service, cloud services, data engineering, web and mobile app development, UI/UX design, discovery phase
    • Location: Lviv, Ukraine; Krakow, Poland; New York, USA; London, UK
    • Team size: 300+ experts
    • Industries: HR Tech, Martech, Fintech, Healthtech

    15. Agile Security Platform

    solutionshub

    Developed by EPAM, a digital transformation leader with 400+ Security Architects, Engineers and Consultants, the Agile Security Platform offers a revolutionary approach to cybersecurity through Penetration Testing as a Service (PTaaS).

    Unlike traditional yearly pen tests, it seamlessly integrates penetration testing throughout the entire software development lifecycle. This ensures continuous protection and allows development teams to identify and address potential issues early on.

    With 200+ successful PTaaS engagements, the Agile Security Platform delivers an unparalleled experience for securing your digital assets.

    • Services and expertise: penetration testing, vulnerability scanning, risk assessment, cloud security assessment, web applications, mobile applications, cloud configurations, internal networks, external networks, API services
    • Location: Newtown, USA
    • Team size: 400+ Security Architects, Engineers & Consultants and 14K+ DevTestSecOps Professionals
    • Industries: Automotive & Manufacturing, Energy & Resources, Financial Services, Healthcare, Insurance, Life Sciences, Media & Entertainment, Retail & CPG, Software & Hi-Tech

    16. TrollEye Security

    Penetration testing companies

    TrollEye Security is a cybersecurity company focusing on proactive and continuous protection against cyber threats through a comprehensive approach known as the “Four Pillars of Cyber Risk Management.” These pillars include Penetration Testing, Dark Web Analysis, DevSecOps, and Managed Security Information and Event Management (SIEM).

    Their services are powered by their proprietary platform, Command Center, which initially served as a Penetration Testing Management tool but has since evolved into a full-fledged Cyber Risk Management Platform with capabilities for Attack Surface Management and Managed SIEM. This platform allows organizations to manage their cybersecurity risks effectively by continuously identifying and addressing vulnerabilities.

    Penetration Testing as a Service (PTaaS) is one of their core offerings, providing continuous, real-time insights into security vulnerabilities through regular testing intervals.

    • Services and expertise: Penetration Testing as a Service (PTaaS), Vulnerability Assessment and Management, Ransomware Protection, Compliance Assurance, Incident Response, and Security Consulting and Strategy Development.
    • Location: Georgia, USA
    • Team size: up to 10 experts
    • Industries: TrollEye Security serves a diverse range of industries, including small to medium-sized enterprises (SMEs), financial services, healthcare, and technology sectors

    17. Sekurno

    Sekurno Penetration testing companies

    Sekurno, with its prominent 5-star rating on Clutch, is recognized as the top penetration testing company and the leading cybersecurity testing company. Talking about their professional approach, Sekurno goes above and beyond the ordinary, providing detailed reports and thorough pentest coverage.

    The team of Sekurno tests the most commonly used tech assets such as web and mobile applications, cloud infrastructure, APIs, networks, K8S configurations, leaked credentials, and smart contracts. Furthermore, they have your back across diverse industries, particularly those with high-risk levels.

    • Services and expertise: penetration testing, S-SDLS, DevSecOps, security compliance, GDPR compliance, vulnerability management
    • Location: Tallinn, Estonia; Sao Paolo, Brazil
    • Team size: 10+ experts
    • Industries: Manufacturing, Advertising and Marketing, Information Technology, Software, HR, Legal, Finance

    Types Of Penetration Testing

    • Network penetration testing: tests internal and external networks, firewalls, servers and exposed services for weaknesses an attacker could use.
    • Web application testing: looks for flaws such as injection, broken authentication and access control issues in websites and web apps.
    • Mobile application testing: examines iOS and Android apps, their data storage and the APIs they talk to.
    • API testing: checks authentication, authorization and data exposure in the APIs that connect systems.
    • Cloud penetration testing: reviews cloud configurations, identity and access settings and exposed cloud services.
    • Social engineering: tests how staff respond to phishing, pretexting and physical access attempts.
    • Red teaming: a longer, goal-based simulation of a real attacker that tests detection and response as well as defenses.

    Tests can also be black box, with no inside knowledge, grey box, with partial access, or white box, with full access to code and documentation.

    How To Choose A Penetration Testing Company

    • Match the scope to your risk. Make sure the provider has proven experience with the systems you need tested, whether that is web apps, cloud, networks or smart contracts.
    • Check tester qualifications. Ask about certifications such as OSCP, OSCE, CREST or GPEN and how much of the work is manual rather than automated.
    • Ask for a sample report. A good report explains each finding, its severity, how to reproduce it and how to fix it, with a summary for management.
    • Confirm retesting. Find out whether fixes are retested and whether that is included in the engagement.
    • Review compliance needs. If you need testing for PCI DSS, SOC 2, ISO 27001 or HIPAA, choose a provider that knows those requirements.
    • Agree on rules of engagement. Scope, timing, contacts and data handling should all be written down before testing starts.

    For more providers, see our list of the top penetration testing companies in 2025. If you need ongoing application security rather than a single test, compare the top application security companies, and for broader protection see the top cybersecurity companies.

    Frequently Asked Questions

    How much does a penetration test cost?

    Pentest pricing is usually quoted per project and depends on scope. The main cost drivers are the number of applications, hosts or IP addresses in scope, the depth of manual testing, the type of test and whether retesting and compliance reporting are included. Some providers also offer Penetration Testing as a Service on a subscription basis for continuous testing.

    How often should you run a penetration test?

    Most organizations run a penetration test at least once a year. You should also test after major changes, such as a new application release, a large infrastructure change or a cloud migration. Some compliance standards set their own testing requirements, so check the rules that apply to you.

    What is the difference between a pentest and a vulnerability scan?

    A vulnerability scan is an automated check that looks for known weaknesses and produces a list of potential issues. A penetration test is performed by skilled testers who try to exploit weaknesses, chain them together and show real business impact. Scans are cheaper and can run often, while pentests go deeper and confirm which risks are real.

    Related list on ReVerb: Top Penetration Testing Companies And Pentesting Firms In 2026

    Conclusion

    Penetration testing plays a vital role in enhancing an organization’s cybersecurity state by identifying and addressing vulnerabilities before they can cause severe harm. It’s an essential tool for companies of all industries to proactively safeguard their digital assets and mitigate security risks. 

    Hiring the best security testing companies from this list ensures you’ll get top-notch services, the ultimate protection of sensitive data, and round-the-clock support.

    If you want to feature your pentest services company in this list, contact us with your request via email or submit a form in the Top Choices section. After a thorough assessment, we’ll decide whether it’s an appropriate addition.

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