Top 15 Penetration Testing Companies

This article explores the top penetration testing companies in 2026. Andersen is featured among 15 leading providers, based on its cybersecurity expertise, client reviews, and over a decade of delivery experience.

To ensure a fair comparison, each penetration testing company was evaluated using the same approach.

Key criteria for evaluating top penetration testing companies

The criteria below define what businesses can expect from a competent pen testing company. Andersen's blockchain-based project with numerous API integrations demonstrates their importance.

Industry experience

A penetration testing company with profound industry knowledge (sector's systems, sensitive data flows, compliance requirements, and common attack vectors) can identify relevant risks faster.

For instance, Andersen's overview of cybersecurity challenges in software-defined vehicles covers risks linked to mobile companion apps, outdated Bluetooth protocols, and cloud-connected backend systems. A provider unfamiliar with the automotive sector would need more time to understand these attack surfaces.

The same applies to healthcare, finance, and critical infrastructure. Industry knowledge helps security teams quickly identify security weaknesses that pose real business risk.

Technical expertise and certifications

A pen testing company's capabilities are reflected in the certifications its testers hold, including OSCP, OSWE, GPEN, and CREST accreditation. Its team should also be capable of performing manual assessments.

While automated vulnerability scanning and automated scanning tools can quickly identify known issues, they cannot connect seemingly minor findings into a viable attack path or accurately assess business impact. For that, human expertise remains essential, even as many providers use AI systems to streamline reconnaissance and triage.

When choosing a penetration testing company, look for certified testers and a proven combination of manual and automated methods.

Scope of testing services

The services a penetration testing company provides should align with the client's attack surface. They cover web application testing, mobile application testing, external network testing, internal network testing, API testing, and API security testing.

Many organizations also need assessments of cloud infrastructure and cloud environments. Comprehensive cloud security testing helps identify misconfigurations and security gaps across AWS, Azure, and GCP deployments.

Vendors that can assess both cloud platforms and on-premises internal systems within a single engagement provide a more complete view of security risks and greater accountability for critical systems.

Testing methodology and standards

Strong testing methodology distinguishes top penetration testing companies. Manual penetration testing allows experts to validate vulnerabilities through real-world attack scenarios. While automated penetration testing improves coverage and speed, manual testing remains essential for identifying complex vulnerabilities.

Organizations can also choose between traditional penetration testing and continuous penetration testing. Reputable providers follow established frameworks such as OWASP, PTES, NIST SP 800-115, and OSSTMM to ensure a consistent approach. Some engagements incorporate social engineering exercises.

Reporting quality and actionability

Before hiring a penetration testing company, review a sample report from a previous engagement. A strong report should clearly identify vulnerabilities, explain their business impact, and show how each finding affects the organization's overall security posture.

Post-testing support

Reliable pentesting companies include a retest phase to verify that remediation efforts were successful and provide practical guidance for the internal systems team responsible for implementing fixes.

Some offer ongoing vulnerability scanning between full assessments, helping their clients stay on top of new security risks.

Client reviews and reputation

Verified reviews on platforms like Clutch can be more trustworthy than testimonials featured on a penetration testing company's website. Recent client feedback can provide valuable insight into communication, delivery reliability, and sensitive data handling.

Pricing transparency

Penetration testing pricing should reflect the scope of the engagement. Testing a single application is far less complex than assessing an environment that includes external network testing, cloud infrastructure, and compliance testing requirements.

A penetration testing partner that provides a detailed quote upfront makes it easier to avoid unexpected costs.

Top 15 penetration testing companies

This list of top pen testing companies is based on delivery experience, team size, and expertise across web, mobile, network, and cloud environments.

It features both global providers and companies in the USA, with various approaches to modern security challenges.

1. Andersen

Recognized among the best penetration testing companies, Andersen delivers penetration testing services for organizations in fintech, healthcare, logistics, and other industries.

Recent Clutch reviews cite impressive measurable outcomes. For example, a digital bank saw test coverage rising from 35% to 70% after turning to the company’s experts.

• Key features: 40+ cybersecurity specialists, comprehensive services, and the ability to start most engagements within approximately five business days.
• Core services: Web application testing, mobile application testing, internal and external network testing, API security testing, red teaming, IoT device testing, and GDPR/PII-specific testing.
• Certifications: Team certifications include OSCP, CEH, CISM, GWAPT, GXPN, and CREST. Testing follows recognized frameworks including OWASP, PTES, NIST, the CIS Cloud Foundations Benchmark, and PCI DSS penetration testing guidance.
• Strengths: Dedicated cybersecurity team backed by a 3,500+ person delivery organization; grey-box, white-box, and black-box testing included in every engagement.
• Considerations: Since cybersecurity is one of several service areas, clients should verify pentest team availability for their projects.
• Review score: 4.9/5 on Clutch based on 129 verified reviews across the company's service portfolio.
• Who they fit: Enterprises and mid-sized organizations seeking penetration testing alongside software development, cloud, or compliance services through a single vendor.

2. ScienceSoft

ScienceSoft is a software development and AI consulting company founded in 1989. Alongside broader cybersecurity services, it provides penetration testing and compliance testing for regulated industries, as well as AI, cloud, and software development services.

The company is recognized among the best penetration testing companies: it won Silver in three categories at the 2026 Cybersecurity Excellence Awards.

• Key features: Black-box, gray-box, and white-box testing, 20+ years of security testing experience, free retesting after remediation, an NDA signed before the introductory call.
• Core services: External and internal network testing, application pentesting, social engineering testing, wireless testing, OSINT, red teaming, and compliance-focused testing.
• Certifications: ISO 9001, ISO/IEC 27001, ISO/IEC 27701, and ISO 13485. Company’s testing aligns with NIST SP 800-115, the OWASP Web Security Testing Guide, PCI DSS/SSF, GLBA, and NIST SP 800-53.
• Strengths: Industry experience across healthcare, insurance, and finance.
• Considerations: The volume of verified Clutch reviews specifically tied to penetration testing is limited.
• Review score: 4.8/5 on Clutch based on 42 verified reviews company-wide.
• Who they fit: Healthcare, financial services, and insurance organizations looking for compliance-focused testing for frameworks such as HIPAA, PCI DSS, GDPR, and SOC 2.

3. Rapid7

Rapid7 is a cybersecurity company founded in 2000. It offers penetration testing and other offensive security services, supported by Vector Command, its continuous red teaming service for attack surface management.

• Key features: Direct contributions to the Metasploit Project; consultants dedicate up to 20% of their time to attacker research and skill development; testing informed by attacker TTP intelligence.
• Core services: External and internal network penetration testing, web application penetration testing, IoT and connected device testing, social engineering penetration testing, red team exercises, and wireless network penetration testing.
• Certifications: No public third-party certifications are disclosed for the pentest team. Methodology is informed by Rapid7's vulnerability research and the Metasploit Framework.
• Strengths: Broader capabilities spanning vulnerability management, detection, and response for organizations seeking a single security vendor.
• Considerations: No verified Clutch reviews were available at the time of writing.
• Review score: N/A.
• Who they fit: Organizations already using, or planning to adopt, Rapid7's vulnerability management and detection tools and looking for penetration testing from the same provider.

4. BreachLock

BreachLock is an offensive security platform provider offering PTaaS, autonomous AI-powered testing through Breach360, and continuous attack surface monitoring from a unified platform.

The company reports more than 40,000 penetration testing engagements across 1,200+ organizations in over 20 countries.

• Key features: PTaaS engagements can be scoped and launched within 24-48 hours, include unlimited retesting, and provide centralized findings management through a unified platform.
• Core services: Web application, mobile application, API, network, cloud, and LLM security testing, plus continuous attack surface management and agentic AI-powered testing.
• Certifications: CREST-accredited globally; testers hold CREST, OSCP, OSCE, and CISSP certifications. Reports are mapped to SOC 2, PCI DSS, ISO 27001, HIPAA, and GDPR requirements.
• Strengths: Continuous automated discovery combined with certified manual testing in a single workflow; recognized in Gartner's 2026 Market Guide for Adversarial Exposure Validation.
• Considerations: Clutch review volume remains relatively low for a provider of this size.
• Review score: 4.3/5 on Clutch based on 3 verified reviews.
• Who they fit: Organizations seeking continuous, platform-based security validation that combines ASM and PTaaS, rather than periodic point-in-time assessments.

5. CrowdStrike

CrowdStrike is a cybersecurity company founded in 2011. Its penetration testing services are informed by incident response expertise and threat intelligence, complementing the company's cloud-native endpoint protection platform.

• Key features: Testing is guided by CrowdStrike's incident response experience and threat intelligence operations.
• Core services: Internal and external pen testing, web and mobile application penetration testing, insider threat pen testing, and wireless penetration testing.
• Certifications: CrowdStrike holds ISO/IEC 42001 certification and maintains SOC 2 Type 2, CSA STAR, FedRAMP High, and other compliance attestations for the Falcon platform.
• Strengths: Strong integration between penetration testing findings and CrowdStrike's Falcon EDR platform; extensive incident response expertise behind the testing practice.
• Considerations: No verified Clutch reviews were available at the time of writing.
• Review score: N/A.
• Who they fit: Organizations already using, or considering, CrowdStrike's endpoint protection platform.

6. Netguru

Netguru is a digital product development company founded in 2008. Alongside software, mobile, and digital commerce development, it provides penetration testing for web, cloud, network, and mobile environments.

• Key features: Security testing is delivered alongside product development teams; cloud security assessments are tailored to the cloud platform in use.
• Core services: Web application testing, cloud penetration testing, network infrastructure testing, and mobile security testing.
• Certifications: No specific pentesting certifications or testing standards are publicly disclosed.
• Strengths: Convenient for organizations seeking both product development and security testing from a single vendor; consistently strong client feedback.
• Considerations: Netguru's primary focus and review history are centered on software and product development rather than dedicated security testing services.
• Review score: 4.8/5 on Clutch based on 73 verified reviews, primarily for development projects.
• Who they fit: Companies already building or maintaining products with Netguru.

7. Mandiant

Mandiant is now part of Google Cloud. Its penetration testing services draw on Mandiant's incident response and threat research experience. This helps organizations assess defenses against real-world attack scenarios.

• Key features: Testing methodology is shaped by Mandiant's frontline incident response experience and threat intelligence operations, supported by incident responders in more than 30 countries.
• Core services: Penetration testing services that simulate real-world attacks, complemented by incident response and threat-intelligence-driven security testing.
• Certifications: Mandiant consultants hold CREST credentials, including CREST Certified Infrastructure Tester, CREST Certified Simulated Attack Specialist, and CREST Certified Simulated Attack Manager.
• Strengths: Deep incident response experience from major investigations, including SolarWinds, Colonial Pipeline, and Snowflake; backed by Google Cloud's resources and global scale.
• Considerations: Compared with more dedicated providers, public information on standalone pentest offerings and pricing is limited.
• Review score: N/A.
• Who they fit: Large enterprises seeking penetration testing informed by frontline incident response and threat research.

8. UnderDefense

UnderDefense is an AI-driven SOC and compliance automation provider founded in 2017. Alongside SIEM/EDR, compliance automation, and incident response services, it offers penetration testing designed to validate existing security controls.

The company reports 96% MITRE ATT&CK coverage.

• Key features: Free post-remediation retesting, an instant pentest cost calculator, detailed remediation guidance, and an optional attestation letter.
• Core services: Internal and external network testing, web and mobile application testing, cloud security assessments, IoT testing, social engineering, red teaming, wireless testing, and compliance-focused penetration testing.
• Certifications: CEH, OSCP, OSCE, CCNA Security, CCNP Security, and more; testing supports ISO 27001, SOC 2, PCI DSS, GDPR, HIPAA, and other compliance requirements.
• Strengths: Manual testing led by ethical hackers and supported by incident response, MDR, and vCISO specialists; named a Top Cybersecurity Company by Clutch in 2025.
• Considerations: Published pentest pricing ($5,000-$30,000) is aimed at small and mid-sized environments.
• Review score: 4.9/5 on Clutch, based on 66 verified reviews.
• Who they fit: Small and mid-sized organizations seeking penetration testing, compliance automation, and SOC monitoring through a single platform.

9. Cobalt

Cobalt is a PTaaS provider founded in 2013. Through its SaaS platform, organizations can run human-led or autonomous penetration tests, from one-time compliance testing to continuous testing between releases.

• Key features: PTaaS delivery through a SaaS platform; human-led, autonomous, or hybrid testing.
• Core services: Web application, API, mobile application, desktop application, and AI/LLM application pen testing; network and cloud security testing; red teaming.
• Certifications: CISSP, OSCP, CREST, OSWE, GPEN, and GXPN.
• Strengths: Centralizes findings from pentests, DAST, ASM, and secure code reviews in one platform; supports on-demand and continuous testing.
• Considerations: No verified Clutch reviews were available at the time of writing, and pricing is not publicly disclosed.
• Review score: N/A.
• Who they fit: Software and SaaS companies looking to combine compliance testing with continuous testing on a single platform.

10. NetSPI

NetSPI is a penetration testing company founded in 2001. It was recognized as a Leader and Outperformer in the 2025 GigaOm Radar for Penetration Testing as a Service.

• Key Features: 350+ in-house pentesters; a PTaaS platform with live findings, remediation tracking, and trend dashboards; MCP integration that enables agentic systems to act on validated findings.
• Core services: Application and network testing, cloud pen testing across AWS, Azure, and GCP, hardware and embedded systems testing, mainframe testing, and AI/LLM testing.
• Certifications: CREST, SOC 2 Type II, and Cyber Essentials Plus. Security controls also support GDPR and CCPA compliance requirements.
• Strengths: Continuous, AI-assisted testing across network, web, cloud, and AI/LLM environments; attack surface visibility and asset inventory included within the platform.
• Considerations: No Clutch review data is available for this penetration testing company.
• Review score: N/A.
• Who they fit: Mid-sized and large enterprises seeking a single platform for continuous PTaaS, attack surface visibility, and AI/LLM security tests.

11. Secureworks

Secureworks is a global cybersecurity company founded in 1999. As a penetration testing company, it delivers services through its Adversary Group.

• Key features: Testing informed by ongoing Counter Threat Unit research; reports include both executive summaries and technical findings; the team holds 150+ Offensive Security certifications.
• Core services: External, internal, and wireless penetration testing; physical security testing; specialized testing for hardware, IoT, OT, vehicle systems, and custom network protocols.
• Certifications: CREST-certified for Penetration Testing and STAR.
• Strengths: Threat intelligence integrated into every engagement; goal-based testing aligned with specific threat scenarios; strong track record in DEF CON and GRRCON competitions.
• Considerations: No verified Clutch reviews are available for Secureworks, and pricing information is not publicly disclosed.
• Review score: N/A.
• Who they fit: Enterprises seeking penetration testing aligned with specific adversary tactics, including APT and nation-state threat models.

12. Optiv

Optiv is an end-to-end cybersecurity company founded in 2015. It serves 12,000+ clients, including 64% of the Fortune 500, and reports that 75% of security vulnerabilities exploited during engagements were not identified by standard automated tools.

• Key features: Manual and automated testing with white-box and black-box approaches.
• Core services: Penetration testing for endpoints, wireless networks, mobile devices, and web applications; red and purple team exercises; attack surface management; and targeted network penetration testing.
• Certifications: CREST-accredited; team holds 110+ security certifications.
• Strengths: Extensive experience working with Fortune 500 organizations; follow-on programs that extend testing into broader people, process, and technology improvements.
• Considerations: No verified Clutch reviews are available.
• Review score: N/A.
• Who they fit: Enterprises looking to incorporate penetration testing into a broader, ongoing threat management program rather than relying on one-off assessments.

13. LevelBlue

LevelBlue is a cybersecurity company launched in 2024 following AT&T Cybersecurity's spin-off. It delivers penetration testing through its SpiderLabs team, acquired with Trustwave, and supplements engagements with threat intelligence from the Open Threat Exchange.

• Key features: Findings validation and retesting included at no extra cost; on-demand Pen Testing as a Service.
• Core services: Network, application, and product security testing; red, purple, and tiger team exercises mapped to MITRE ATT&CK; OT security testing; and Microsoft-focused security services.
• Certifications: CREST Penetration Testing, CREST STAR.
• Strengths: Backed by large-scale threat intelligence from OTX; dedicated Microsoft Security expertise for Azure-centric organizations; testing and retesting included as standard.
• Considerations: No verified Clutch reviews are available for LevelBlue, and pricing is provided on request.
• Review score: N/A.
• Who they fit: Enterprises already using AT&T or Microsoft security technologies that want penetration testing combined with broader threat intelligence and detection capabilities.

14. Redbot Security

Redbot Security is a boutique penetration testing company founded in 2016. It specializes in fully manual engagements.

• Key features: 100% manual, senior-led testing with no automated scanner output presented as findings; proof-of-concept evidence for every finding; direct collaboration with the engineers conducting the engagement.
• Core services: Internal and external network penetration testing, wireless testing, web and mobile application penetration testing, API testing, cloud security assessments, OT/ICS testing, AI security testing, red teaming, and physical and electronic social engineering.
• Certifications: Operators hold OSCP+, CRTO, GPEN, CISSP, CCSP, CCSK, SecurityX, AWS, and other certifications.
• Strengths: Senior-only delivery with no outsourcing; expertise across traditional and emerging attack surfaces, including AI/LLM systems.
• Considerations: No verified Clutch reviews are available for Redbot Security. Its hourly rates ($200-$300/hr) are among the highest on this list.
• Review score: N/A.
• Who they fit: Organizations seeking fully manual testing by senior specialists, particularly for AI/LLM systems or OT/ICS environments.

15. FRSecure

FRSecure is an information security company that provides penetration testing and broader security assessments. Its testing follows the Penetration Testing Execution Standard (PTES), covering the full process from OSINT-based reconnaissance through exploitation and reporting.

• Key features: Sample penetration test report available on request; engagements are often completed within about a week; proprietary risk assessment methodology mapped to NIST and other major standards.
• Core services: External and internal penetration testing, web application penetration testing using PTES and OWASP guidance, physical bypass testing, red and purple teaming, and wireless penetration testing.
• Certifications: Team certifications include CISSP, OSCP, GXPN, CCSP, CISA, CISM, PCI DSS QSA, ISO 27001 ISMS Auditor, and other industry-recognized credentials.
• Strengths: Vendor-neutral recommendations with no software or hardware resale incentives; technically strong team with a proven DEF CON track record; accessible pricing.
• Considerations: Very large, multi-region enterprise engagements may fall outside the company’s typical project scope.
• Review score: 4.9/5 on Clutch based on 31 verified reviews.
• Who they fit: Small and mid-sized organizations, including healthcare providers, banks, and schools.

Comprehensive comparison table of penetration testing companies

The table below highlights the core differences across the agencies from our list of top pen testing companies.

Company	Pen testing services	Key features	Certifications & compliance	Rating (Clutch)
Andersen	Web, mobile, network, API, red teaming, IoT, GDPR/PII testing	40+ cybersecurity experts, 300+ projects, ~5-day start	OSCP, CEH, CISM, GWAPT, GXPN, CREST	4.9/5
ScienceSoft	Network, application, social engineering, wireless, OSINT, red team, compliance	20+ years in security testing, free retest	ISO 9001, ISO/IEC 27001, ISO/IEC 27701, ISO 13485	4.8/5
Rapid7	Network, web app, IoT, wireless, social engineering, red team	Metasploit ownership, attacker TTP research	Not publicized	N/A
BreachLock	Web, mobile, API, network, cloud, LLM	24–48 hr PTaaS launch, unlimited retesting, ASM + Breach360	CREST, OSCP, OSCE, CISSP	4.3/5
CrowdStrike	Internal, external, web/mobile, insider threat, wireless	Testing tied to incident response & threat intel	ISO/IEC 42001, SOC 2 Type 2, CSA STAR	N/A
Netguru	Web app, cloud, network infrastructure, mobile	Bundled with product development teams	Not publicized	4.8/5
Mandiant	Real-world attack simulation across people, process, technology	Incident response pedigree (SolarWinds, Snowflake)	CREST CCT INF, CCSAS, CCSAM	N/A
UnderDefense	Internal/external network, web/mobile, cloud, IoT, social engineering, red team, compliance	Free post-remediation retest, cost calculator, MAXI platform	CEH, OSCP, OSCE, CCNA Security, CCNP Security, AWS, ISO 27001 Lead Auditor	4.9/5
Cobalt	Web, API, mobile, desktop, AI/LLM, network, cloud, red teaming	PTaaS SaaS platform, human-led or autonomous testing, credit-based on-demand model	CISSP, OSCP, CREST, OSWE, GPEN, GXPN	N/A
NetSPI	Web, API, mobile, network, cloud, hardware, mainframe, AI/LLM	350+ in-house pentesters, MCP agentic integration, live dashboards	CREST, SOC 2 Type II, Cyber Essentials Plus	N/A
Secureworks	External, internal, wireless, physical, hardware/OT, custom threat models	Testing driven by Counter Threat Unit intelligence, narrative reporting	CREST (PT & STAR)	N/A
Optiv	Endpoint, wireless, mobile, web app, red/purple team, attack surface management	50+ consultants, 108k+ testing hours/year, 75% findings missed by automated tools	CREST-accredited	N/A
LevelBlue	Network, application/product, red/purple/tiger team, OT, Microsoft/Azure security	Free retesting, 1,000+ SpiderLabs consultants, OTX threat intelligence	CREST (PT & STAR)	N/A
Redbot Security	External/internal network, wireless, web/mobile, API, cloud, OT/ICS, AI, social engineering	100% manual senior-led testing, proof-of-concept reporting	OSCP+, CRTO, GPEN, GXPN, CISSP, CCSP, SecurityX, AWS	N/A
FRSecure	External/internal, web app, physical bypass, red/purple team, wireless	Free sample report, PTES methodology, vendor-agnostic advice	CISSP, OSCP, GXPN, CCSP, CISA, CISM, PCI DSS QSA	4.9/5

Key takeaways

Choosing among the top penetration testing companies is about finding the right fit for your environment, industry, and security goals. The best penetration testing company for your needs combines manual and automated testing, recognized certifications, and clear reporting that teams can act on quickly.

Regular penetration testing helps uncover security vulnerabilities before attackers do, supports compliance requirements, and provides a clear view of security risk. For organizations that rely on comprehensive security assessments, it remains a practical and measurable part of a broader security strategy.

To discuss scope and timelines, contact Andersen's team directly.

FAQ

What is the typical cost range for penetration testing services in 2026?

The typical cost of penetration testing services in 2026 can range from $5,000 to $250,000+.

• $5,000–$15,000 for smaller engagements focused on a single application or a restricted testing scope
• $15,000–$40,000 for standard security assessments across web, API, or mobile systems
• $40,000–$100,000+ for complex ecosystems that include multiple platforms, third-party integrations, and compliance requirements
• $30,000–$250,000+ for advanced security exercises (red team campaigns, company-wide assessment programs)

The final penetration testing cost depends on the scope of the engagement, the number of in-scope assets, the depth of testing (automated vs. manual), and whether the service is delivered as a one-time vulnerability assessment or through continuous testing.

What is the typical timeframe for completing a penetration test?

It can range from 3 business days to 6 weeks.

• Single web application: 3–5 business days of active testing
• Network penetration test (internal or external): 1–2 weeks
• Full-scope, multi-asset engagement: 3–6 weeks, including reporting and a retest window

Why might manual testing be preferred over automated scanning?

Manual testing can uncover complex vulnerabilities and attack paths that automated tools may overlook.

• Automated scanning flags known vulnerabilities fast but misses business-logic flaws
• Manual testing can chain low-severity findings into a working exploit path
• Human expertise catches context-dependent issues
• Manual penetration testing better simulates real attacker behavior

What should you look for in a vendor's background before hiring them?

Choose a vendor with a proven track record and a qualified, experienced security team.

• Certifications the testers hold (OSCP, CREST, OSWE, GPEN)
• Direct experience with your industry and its compliance requirements
• Independent, verified client reviews
• A defined testing methodology mapped to a recognized standard (OWASP, PTES, NIST SP 800-115)

What should you request from a vendor to assess report quality?

Request a sample report from a comparable engagement, confirmation that findings include remediation guidance, evidence of a retest process, and an executive summary for non-technical stakeholders.

How does PTaaS differ from traditional point-in-time assessments?

Traditional penetration testing is performed as a scheduled engagement. PTaaS provides continuous testing, helping teams identify new issues between releases.

Continuous testing is especially valuable for organizations that deploy updates frequently.

Which compliance framework is cited as recommending annual penetration testing?

PCI DSS explicitly requires penetration testing at least annually and after significant changes to the cardholder data environment. HIPAA and SOC 2 do not mandate a specific testing frequency, but organizations commonly perform regular testing as part of broader risk management and security assurance programs.

What are some affordable penetration testing companies that offer comprehensive reports?

Several top penetration testing companies on this list offer strong reporting at competitive rates. FRSecure provides a sample report on request, UnderDefense includes free retesting, and ScienceSoft and Andersen offer pentest services starting at around $5,000 with both executive and technical reporting.

For any of these top pen testing companies, request a sample report to verify the level of detail meets your needs.