Top Performing Cloud Penetration Testing Firms of 2025

In the rapidly evolving digital landscape, cloud penetration testing has become a critical service as more businesses migrate their infrastructure to the cloud. The leading companies in this field combine deep knowledge of cloud-native vulnerabilities with a flexible, platform-driven approach.

Cloud penetration testing goes beyond automated scans by simulating a real-world attacker's mindset. This approach helps uncover unique attack vectors such as misconfigured services, insecure APIs, and overly permissive IAM policies.

One of the front-runners in this field is NetSPI, known for its Resolve platform that streamlines the entire pentest workflow, from scoping to remediation. Another notable contender is Bishop Fox, whose team of experts uses cutting-edge, proprietary and open-source tools to simulate real-world attacks.

Synack's platform integrates with AWS, Azure, and GCP to automatically detect changes and launch on-demand tests. Pentera's platform provides a hybrid test, identifying attack vectors that extend across both cloud and on-premises environments.

Rhino Security Labs, a company with a history of discovering and publishing high-profile cloud vulnerabilities and tools, also makes the list. Praetorian, on the other hand, focuses on uncovering exploitable vulnerabilities that are most likely to be leveraged by real-world attackers. Praetorian's services also include Continuous Threat Exposure Management (CTEM) to maintain security over time.

TrustedSec is renowned for its detailed reporting and a strong focus on providing clear, prioritized remediation guidance. Coalfire's cloud penetration testing services are tailored to help organizations meet stringent regulatory requirements while also strengthening their security posture.

Cobalt.io offers a platform that connects businesses with a global community of vetted security researchers for cloud penetration testing, providing access to specialized talent and accelerating the testing process. Cobalt's platform centralizes all findings, making it easy to manage and track vulnerabilities.

The top 10 cloud penetration testing companies for 2025 were selected based on three key criteria: Experience & Expertise, Authoritativeness & Trustworthiness, and Feature-Richness. These criteria included considerations such as CSP-Specific Expertise, Continuous Testing, Advanced Reconnaissance, and Actionable Reporting.

In addition to these companies, globally recognized firms such as Qualitest Group, Protagonist, and CyberProof also made the list. Their strengths are based on cutting-edge solutions in automation, AI, blockchain, cloud-first operations, and comprehensive threat defense platforms suited for the evolving cybersecurity landscape of 2025.

As businesses continue to migrate to the cloud, the importance of robust cloud penetration testing cannot be overstated. These top companies are at the forefront of ensuring the security of cloud-based infrastructure worldwide.