Since cyberattacks evolve just as often as the methods to prevent them, it's in businesses’ best interest that penetration testing providers notice their weak spots before hackers do. Penetration testing, or "ethical hacking," is one of the techniques used by IT teams to find these vulnerabilities.
Pen testers identify potential targets for hackers by simulating attacks on systems, devices, apps, or networks. The results of such tests are important for designing and implementing more effective security mechanisms and for improving the system's resilience.
The global penetration testing market is valued at $2.74B in 2025. It is expected to reach $6.25B by 2032, indicating businesses’ readiness and will to invest in better security. It also means there will be more tech companies offering comprehensive cybersecurity services. But how do you choose the right one for your business case?
We have prepared a list of 15 carefully selected penetration testing companies to help you find the most suitable and reliable tech vendor for your business needs. Here's what we focused on during the selection process.
Selection methodology
Clutch lists over 3,800 companies offering penetration testing services. The number of pen testing vendors worldwide is even higher, making choosing the right one quite difficult.
When selecting the best penetration testing companies, choose vendors with more than 10 years of experience in pen testing services. Security teams with more hands-on experience usually have a deeper understanding of attack patterns and how they evolve. This helps them adapt to new threats quickly and simulate modern attack techniques more accurately.
In addition, the more tech experts a vendor has, the more likely it is that the provider will have security specialists available when you need them. A larger team also brings more diverse expertise, which improves the quality and depth of the assessment. On top of that, having reviews from real-world clients is another proof of the trustworthiness of penetration testing service providers.
Here are a few criteria we applied to make a list of penetration testing companies:
- 10+ years of experience in providing pen testing services;
- Published pen testing case studies;
- An in-house team of at least 250+ tech experts;
- Three or more client reviews on Clutch and similar platforms;
- 4.5 or higher global rating on Clutch, Goodfirms, and similar platforms.
Let’s review the 15 top penetration testing companies we selected.
Top 15 trusted pen testing companies
1. N-iX
N-iX has been a reliable software development provider for enterprises for 23 years. It's one of the global penetration testing companies that also offers technology and cybersecurity consulting, digital transformation, custom solution development, and team extension services.
Our services help clients fortify their systems, identify vulnerabilities, and ensure robust protection on every level. We apply industry-best application security practices and simulate hacker attacks by penetration testing using advanced tools for web and mobile apps. Our comprehensive services include external and internal network pen tests, vulnerability assessments, Red vs Blue team evaluations, SOC operations, and incident response to safeguard your tech infrastructure and minimize risk.
N-iX assists organizations in achieving regulatory compliance, particularly in heavily regulated sectors such as banking, energy, and healthcare. Holding certifications like PCI DSS, FSQS, CyberGRX, ISO 9001:2008, ISO 27001, and ISO/IEC 27701:2019, we ensure adherence to cybersecurity policies and standards. N-iX's extensive industry experience spans finance, manufacturing, retail, logistics and supply chain, automotive, and more domains, positioning us among the best pen testing companies.
2. BJSS
Operating globally since 1993, this vendor specializes in penetration testing as part of their cybersecurity services. The company helps businesses across sectors like public services, retail, manufacturing, and finance identify and address vulnerabilities in their systems effectively. The vendor also offers engineering, automation, design, and other services.
3. Rapid7
This vendor is one of the penetration testing services companies that can help discover vulnerabilities in your desktop, web, and mobile applications. It also provides assessments at the infrastructure and system levels. In addition, the company offers security consulting services, such as threat modeling, risk prioritization, and managed detection and response.
4. Wipro
As one of the oldest cybersecurity penetration testing companies, this vendor provides a broad range of security assessment services. These include infrastructure and application testing, vulnerability assessments, embedded system testing, and Red Team simulations. The company works across numerous industries, including telecommunications, financial services, and energy.
5. Apriorit
This vendor is one of the most versatile security penetration testing companies on our list. It provides security assessment services for client-server systems, web services, networks (both external and internal), Android and iOS applications, smart contracts, SaaS platforms, and more. It caters to the needs of finance, healthcare, automotive, telecom, and other businesses. Headquartered in the US, the vendor also has offices in Ukraine, Canada, and Poland.
6. Sikich
For over 30 years, this tech company has offered various cybersecurity services, including different types of penetration testing. With such controlled tests, the vendor's cybersecurity experts can detect vulnerabilities in clients’ websites, systems, and applications. This tech company has offices in the US and India and mainly serves clients from the manufacturing, life sciences, and agriculture industries.
7. Black Box
This vendor is one of the best penetration testing service providers, offering a wide range of tech services since 1976. As one of the pen testing companies, it helps businesses gain actionable insights into their defense mechanisms. By using various penetration test types, the vendor helps detect and eliminate vulnerabilities, strengthening security for clients across multiple industries.
8. Cegeka Romania
Since 2012, this company has delivered a range of IT services, including consultancy, team extension, outsourcing, and end-to-end software development. As one of the external penetration testing companies, this vendor helps identify security vulnerabilities by testing web applications, internal networks, servers, and employee behavior.
9. CyberDuo
Being one of the top-rated penetration testing companies, this provider specializes in identifying vulnerabilities and strengthening security across IT systems and cloud environments. It's based in the US and partners mostly with US businesses. It offers penetration testing services and helps clients secure their networks and critical access points. In addition to pen testing, the vendor also provides managed EDR, cloud security, and training services.
10. TechMagic
This vendor is among the companies that do penetration testing for clients in marketing and HR technology, financial services, healthcare, and other domains. Its security assessment services include realistic cyberattack simulations and the development of comprehensive solutions that mitigate cyber threats. In addition, the company delivers detailed pen testing reports and helps clients design and implement more robust security frameworks.
11. Red River
This company provides pen testing as part of its broader managed detection and response package. Its portfolio includes end-user security, compliance and governance, secure service edge, identity and access management, and data protection services. The vendor operates in the US market and has its headquarters in New Hampshire.
12. Dataprise
The next penetration testing company on our list offers various managed tech services to private equity, SMEs, and non-profit businesses. It helps clients proactively detect both known and unknown threats, vulnerabilities, and cybersecurity risks across people, processes, and technologies. The vendor also provides managed detection and response, as well as virtual CISO services.
13. Executech
Headquartered in Utah, this company specializes in managed IT, cloud, and cybersecurity services. It is one of the top-ranked penetration testing companies in the region. As part of its managed firewall services, it offers pen tests to help strengthen network infrastructure against cyber threats. The vendor has offices across the US and serves clients from government, construction, healthcare, and other industries.
14. Applaudo
As one of the network penetration testing companies, this vendor conducts simulated attacks to uncover weaknesses in clients’ networks or systems. Based on the test results, the company can help clients improve their attack response, develop a more effective risk management plan, and enhance overall resilience.
15. 1Path
The final entry on our list of penetration testing service providers, this enterprise was founded in 1997 as three separate tech companies that eventually merged into one. It features penetration testing as a part of its cybersecurity service offerings. The vendor partners with clients from the legal, healthcare, senior living, finance, and manufacturing industries.
What makes N-iX one of the best pen testing companies?
At N-iX, we prioritize your business's security and offer you a full spectrum of cybersecurity services, including pen testing. If you're looking for penetration testing services from a reliable tech vendor, N-iX is the right company for you.
We've successfully completed more than 100 security projects for companies of all sizes. With a team of seasoned cybersecurity experts, N-iX offers tailored services to identify and mitigate risks across web and mobile applications, networks, infrastructures, and cloud environments. Backed by certifications, including PCI DSS, FSQS, CyberGRX, ISO 9001:2008, ISO 27001, and ISO/IEC 27701:2019, we prioritize compliance with cybersecurity policies and standards to ensure the utmost protection of your digital assets.
By partnering with N-iX, businesses from finance and banking, manufacturing, retail, automotive, healthcare, and other industries can safeguard their assets, meet regulatory standards, and bolster their reputation for security excellence. Contact us to discuss how we can help you protect your company against cyber threats!
