Top 10 Best Cloud Penetration Testing Companies in 2025

Cloud is the foundation of modern business, but it comes with a complex and evolving security landscape.

Traditional penetration testing, which focuses on on-premise networks and applications, is not sufficient to secure these dynamic environments.

Cloud penetration testing requires specialized expertise to identify and exploit vulnerabilities unique to cloud-native architectures, including misconfigurations, insecure identity and access management (IAM), and vulnerabilities in cloud-native services like serverless functions and containers.

In 2025, with multi-cloud strategies becoming the norm, a robust cloud penetration test is a non-negotiable part of a comprehensive security program.

Why We Choose Cloud Penetration Testing

The shared responsibility model of cloud providers means that while the provider secures the underlying infrastructure, the customer is responsible for the security in the cloud.

This includes everything from IAM policies and network configurations to the security of data and applications.

Cloud penetration testing is essential because it goes beyond automated scanning to find logical flaws, privilege escalation paths, and misconfigurations that a human attacker would exploit.

It provides a realistic assessment of an organization’s cloud security posture and helps teams align their defenses with real-world attack scenarios.

How We Choose Best Cloud Penetration Testing Companies

To select the top 10 cloud penetration testing companies, we evaluated them based on three key criteria:

Experience & Expertise (E-E): We looked for companies with deep, specialized knowledge of major cloud platforms (AWS, Azure, GCP) and a proven track record of finding complex vulnerabilities in cloud-native environments.

Authoritativeness & Trustworthiness (A-T): We considered market leadership, industry recognition, and the reputation of their proprietary research teams and methodologies.

Feature-Richness: We assessed the breadth of their offerings, looking for core capabilities in:

Human-Led Testing: The ability to perform manual, creative exploitation of cloud misconfigurations.

Platform/PTaaS Model: The use of a platform to provide real-time reporting, collaboration, and continuous testing.

Cloud-Native Focus: A methodology that specifically addresses IAM, API security, and container vulnerabilities.

Reporting & Remediation: Clear, actionable reports with detailed remediation guidance tailored to cloud environments.

Comparison Of Key Features (2025)

Company	Human-Led Testing	Platform/PTaaS Model	Cloud-Native Focus	Reporting & Remediation
Synack	✅ Yes	✅ Yes	✅ Yes	✅ Yes
Bishop Fox	✅ Yes	✅ Yes	✅ Yes	✅ Yes
Offensive Security	✅ Yes	❌ No	✅ Yes	✅ Yes
CrowdStrike	✅ Yes	✅ Yes	✅ Yes	✅ Yes
Cobalt	✅ Yes	✅ Yes	✅ Yes	✅ Yes
Rapid7	✅ Yes	✅ Yes	✅ Yes	✅ Yes
NetSPI	✅ Yes	✅ Yes	✅ Yes	✅ Yes
Trustwave	✅ Yes	✅ Yes	✅ Yes	✅ Yes
NCC Group	✅ Yes	❌ No	✅ Yes	✅ Yes
Mandiant	✅ Yes	✅ Yes	✅ Yes	✅ Yes

1. Synack

Synack pioneered the Penetration Testing as a Service (PTaaS) model, blending the power of a global, vetted community of ethical hackers with a secure, on-demand platform.

For cloud security, Synack’s model is particularly effective as it allows for continuous testing of dynamic cloud environments.

By leveraging a diverse team of researchers, Synack can find more vulnerabilities in less time and provide real-time insights into cloud misconfigurations and vulnerabilities.

Why You Want to Buy It:

Synack’s PTaaS platform provides a flexible, on-demand solution that is perfectly suited for cloud security.

The ability to engage a diverse team of researchers offers a more comprehensive test, and the platform simplifies management, allowing teams to quickly address vulnerabilities.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	A vetted community of 1,500+ ethical hackers.
Platform/PTaaS	✅ Yes	On-demand PTaaS platform with continuous testing.
Cloud-Native Focus	✅ Yes	Integrations with AWS, Azure, and GCP for continuous asset discovery.
Reporting	✅ Yes	Real-time reporting, collaboration, and patch verification.

✅ Best For: Organizations with dynamic, agile cloud environments that need continuous and scalable testing to keep pace with rapid development and change.

Try Synack here → Synack Official Website

2. Bishop Fox

Bishop Fox is a pure-play offensive security firm renowned for its elite team of hackers and a creative, objective-based approach to testing.

Their cloud penetration testing services are a core part of their offerings, focusing on finding complex attack paths that exploit the intricate relationships between cloud services.

The company also offers a hybrid PTaaS model called Continuous Attack Surface Testing (CAST), which provides continuous, expert-led testing of an organization’s cloud assets.

Why You Want to Buy It:

Bishop Fox’s reputation for technical excellence is unmatched. Their testers are not only technically proficient but also creative, using innovative methods to breach cloud defenses.

This provides a deep and thorough assessment that few other firms can replicate.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	The elite “Fox” team of security professionals.
Platform/PTaaS	✅ Yes	Hybrid PTaaS model for continuous testing.
Cloud-Native Focus	✅ Yes	Focuses on cloud misconfigurations, IAM, and privilege escalation.
Reporting	✅ Yes	Actionable, high-quality reports with clear findings.

✅ Best For: Organizations that want a top-tier, white-glove security assessment from one of the most respected offensive security firms in the world, with a specific focus on complex cloud environments.

Try Bishop Fox here → Bishop Fox Official Website

3. Offensive Security

Offensive Security is the premier provider of hands-on, professional penetration testing training and certifications (OSCP, OSEP, etc.).

While primarily known for its educational offerings, its professional services division applies the same rigorous, hacker-minded methodology to client engagements.

The Offensive Security team is revered for its ability to find the most deeply hidden and creative vulnerabilities, a skill that is directly applied to complex cloud penetration tests, including containerization and serverless environments.

Why You Want to Buy It:

The caliber of Offensive Security’s testers is arguably the highest in the industry.

Their engagements are not about checking boxes; they are about proving a security posture through creative, persistent hacking, providing an unmatched level of assurance and discovery.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	A team of highly certified and skilled hackers.
Platform/PTaaS	❌ No	Focus is on traditional, deep-dive engagements.
Cloud-Native Focus	✅ Yes	Specializes in container, serverless, and cloud service testing.
Reporting	✅ Yes	Detailed reports with reproduction steps and proof-of-concept exploits.

✅ Best For: Organizations seeking a highly technical, deep-dive penetration test from a firm whose brand is synonymous with elite ethical hacking skills.

Try Offensive Security here → Offensive Security Official Website

4. CrowdStrike

CrowdStrike, a leader in endpoint security, provides expert-led penetration testing services as part of its broader Falcon platform.

Their testing goes beyond traditional methods, focusing on simulating real-world adversary tactics, techniques, and procedures (TTPs) in cloud environments.

The team, backed by CrowdStrike’s renowned threat intelligence, provides a realistic assessment of an organization’s cloud defenses against today’s most sophisticated attackers.

Why You Want to Buy It:

CrowdStrike’s deep understanding of adversary behavior, derived from its Falcon platform, allows its testers to replicate the most current and dangerous attack techniques.

This provides a truly realistic and valuable assessment of an organization’s cloud defenses.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	A team with extensive experience in red teaming and incident response.
Platform/PTaaS	✅ Yes	Findings are managed within the Falcon platform.
Cloud-Native Focus	✅ Yes	Focuses on cloud misconfigurations and API security.
Reporting	✅ Yes	Detailed reports with strategic and technical recommendations.

✅ Best For: Organizations that want a penetration test from a company with unrivaled threat intelligence and a focus on simulating modern, targeted attacks on cloud infrastructure.

Try CrowdStrike here → CrowdStrike Official Website

5. Cobalt

Cobalt is a pioneer in the Penetration Testing as a Service (PTaaS) space, offering a modern, on-demand platform for cloud pentesting.

The company connects a curated community of highly skilled ethical hackers with organizations that need to test their cloud applications and infrastructure.

Cobalt’s platform streamlines the entire testing process, from scoping to remediation, and provides a single, centralized view of all findings.

Why You Want to Buy It:

Cobalt’s PTaaS model is ideal for the speed of cloud development.

Its platform allows for quick test launches, real-time collaboration with testers, and seamless integration with development workflows, significantly accelerating vulnerability remediation.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	A curated community of elite pentesters.
Platform/PTaaS	✅ Yes	On-demand PTaaS platform for cloud environments.
Cloud-Native Focus	✅ Yes	Specializes in APIs, microservices, and web applications in the cloud.
Reporting	✅ Yes	Real-time findings and integration with Jira.

✅ Best For: DevOps-centric companies and teams that need an agile, fast, and continuous approach to cloud security testing.

Try Cobalt here → Cobalt Official Website

6. Rapid7

Rapid7 offers a comprehensive suite of security services, including expert-led cloud penetration testing.

Leveraging its deep expertise in vulnerability management (via the InsightCloudSec platform), Rapid7’s testing team is well-versed in the latest cloud misconfigurations and exploits.

Their tests are designed to find and validate vulnerabilities, providing clear, actionable insights to reduce risk and improve cloud security posture.

Why You Want to Buy It:

Rapid7’s penetration testing services are tightly integrated with its cloud security posture management (CSPM) and vulnerability management solutions.

This ensures that findings are not only discovered but also prioritized and managed effectively, providing a seamless path to remediation.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	A team of experienced cloud pentesters.
Platform/PTaaS	✅ Yes	Findings are managed within the Insight Platform.
Cloud-Native Focus	✅ Yes	Focuses on CSPM, IAM, and cloud resource misconfigurations.
Reporting	✅ Yes	Clear, prioritized reports with remediation advice.

✅ Best For: Organizations that need a unified approach to vulnerability management across their cloud and on-premise environments, leveraging a single vendor for both testing and remediation.

Try Rapid7 here → Rapid7 Official Website

7. NetSPI

NetSPI is a top player in penetration testing, known for its innovative Penetration Testing as a Service (PTaaS) platform.

The company’s platform provides continuous, on-demand testing, real-time results, and advanced analytics.

NetSPI’s team of dedicated pentesters is known for its rigorous, methodical approach to cloud environments, which includes deep-dive testing of APIs, containers, and serverless functions.

Why You Want to Buy It:

NetSPI’s PTaaS platform streamlines the entire cloud testing process, from scoping to remediation.

The ability to see and collaborate on findings in real-time dramatically reduces the time to fix vulnerabilities, making it a highly efficient solution for cloud-native security.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	300+ in-house pentesters with deep expertise.
Platform/PTaaS	✅ Yes	The NetSPI Platform offers continuous, on-demand testing.
Cloud-Native Focus	✅ Yes	Includes comprehensive testing of all major cloud providers.
Reporting	✅ Yes	Real-time findings, integrations with Jira/ServiceNow, and clear reports.

✅ Best For: Organizations that need a scalable, continuous approach to cloud penetration testing and want a platform that provides real-time visibility and collaboration on findings.

Try NetSPI here → NetSPI Official Website

8. Trustwave

Trustwave, now a LevelBlue company, is a global cybersecurity firm with a renowned team of ethical hackers and researchers known as SpiderLabs.

Trustwave’s cloud penetration testing services leverage this team’s extensive threat intelligence and a systematic, multi-phase methodology to uncover and exploit vulnerabilities.

Their services are designed for organizations of all sizes and are known for their thoroughness and detail, with a specific focus on security across multi-cloud environments.

Why You Want to Buy It:

Trustwave’s SpiderLabs is a highly respected group that combines real-world attack expertise with proactive threat research.

This allows their testers to simulate attacks that are not just theoretical but are based on actual, emerging threats to cloud infrastructure.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	The expert Trustwave SpiderLabs team.
Platform/PTaaS	✅ Yes	Findings are managed within the Trustwave Fusion platform.
Cloud-Native Focus	✅ Yes	Provides deep-dive testing for cloud services.
Reporting	✅ Yes	Clear, prioritized reports with remediation guidance.

✅ Best For: Companies that want a comprehensive, end-to-end security solution from a specialized MSSP with a dedicated, world-class research team.

Try Trustwave here → Trustwave Official Website

9. NCC Group

NCC Group is a global leader in cybersecurity and risk mitigation, with a strong reputation for research-driven consulting.

Their cloud penetration testing services are conducted by a team of highly skilled experts who leverage their deep understanding of cloud security, including the latest vulnerabilities and attack vectors.

The firm is known for its detailed, technical assessments and its ability to provide clear, actionable insights for complex cloud environments.

Why You Want to Buy It:

NCC Group’s research-first approach means their testers are always on the cutting edge of cloud security.

Their ability to find and exploit even the most obscure vulnerabilities provides a level of assurance that goes far beyond a typical compliance-driven test.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	A team of highly skilled security researchers.
Platform/PTaaS	❌ No	Focus is on traditional, project-based engagements.
Cloud-Native Focus	✅ Yes	Specializes in securing cloud infrastructure, applications, and APIs.
Reporting	✅ Yes	Provides detailed, technical reports with strategic recommendations.

✅ Best For: Organizations with high-stakes, complex cloud environments that require a deep, research-driven security assessment from a highly respected firm.

Try NCC Group here → NCC Group Official Website

10. Mandiant

Mandiant, now part of Google Cloud, is a global leader in incident response and threat intelligence.

Its cloud penetration testing services are unique because they are backed by the unparalleled insights of the Mandiant intelligence team, which tracks the tactics of real-world attackers.

Mandiant’s cloud engagements are designed to simulate sophisticated attacks, including those that exploit the unique relationships and trust boundaries within cloud ecosystems.

Why You Want to Buy It:

Mandiant’s expertise in incident response gives them a unique perspective on what attackers are actually doing in cloud environments.

This knowledge allows them to provide a realistic assessment that few other firms can offer, helping you prepare for and prevent the most critical threats.

Feature	Yes/No	Specification
Human-Led Testing	✅ Yes	A team of world-class security experts.
Platform/PTaaS	✅ Yes	Integrates with Google Cloud’s security suite.
Cloud-Native Focus	✅ Yes	Specializes in testing all three major cloud platforms.
Reporting	✅ Yes	Actionable reports based on Mandiant’s threat intelligence.

✅ Best For: Organizations that want a cloud penetration test from a company with unrivaled, real-world threat intelligence and a focus on validating security controls against actual adversary behavior.

Try Mandiant here → Mandiant (Google Cloud) Official Website

Conclusion

In 2025, cloud penetration testing is a strategic necessity, not just a technical exercise.

As cloud environments become more complex, the most effective companies are those that combine deep human expertise with modern, scalable platforms.

Firms like Synack and Cobalt are leading the charge with innovative PTaaS models, providing a continuous and agile approach that is perfectly suited for dynamic cloud environments.

Meanwhile, established security powerhouses like Rapid7, CrowdStrike, and Mandiant leverage their vast threat intelligence to provide a realistic, attacker-focused assessment.

For organizations that require a deep, research-driven approach for high-stakes environments, specialist firms like Bishop Fox, Offensive Security, and NCC Group provide unparalleled technical depth.

Ultimately, the right partner for your organization will depend on your specific needs, but all of these companies offer the necessary expertise to secure your cloud assets against the next generation of threats.

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