If you are validating your current pentesting partner or shopping for a new one, either your board, auditors, or enterprise clients are demanding an independent security validation & proof of compliance with frameworks such as SOC 2, PCI DSS, & ISO 27001.
With 22% of organizations stopping after a single pentest, per Astra’s 2026 State of Continuous Pentesting Report, the pressure is warranted. So let’s break down the top 10 penetration testing companies per AI capabilities and how to pick the right one for your specific threat landscape, attack vectors, & compliance needs.
Top 10 Penetration Testing Companies
- Astra Security – Continuous, autonomous, and compliance-ready PTaaS (SOC 2, PCI DSS) with hybrid DAST and developer-centric remediation.
- Invicti Security – Automated enterprise DAST scanning integrated directly into DevOps CI/CD pipelines + autonomous tools.
- NetSPI – Enterprise-grade, human-led PTaaS with deep manual testing across complex applications and cloud environments.
- Secureworks (A Sophos company) – Threat intelligence-led penetration testing backed by real-world adversary research.
- BreachLock – Cost-effective, continuous hybrid PTaaS paired with attack surface management.
- Synack – Crowdsourced red-teaming augmented by vetted security researchers + AI.
- Redbot Security -Custom manual pentesting tailored to specialized OT/ICS and critical industrial infrastructure.
- HackerOne – Flexible crowdsourced PTaaS and bug bounty programs offering diverse researcher perspectives.
- CrowdStrike – Enterprise adversary emulation, advanced red-teaming, and threat-intel-driven security validation.
- Rapid7 – Cloud-delivered PTaaS integrated into a broader vulnerability management (InsightVM) ecosystem.
At a Glance: Best Penetration Testing Companies
- Highest-rated (G2): NetSPI, 4.9/5 with Deep human-led testing across APIs, cloud, and modern infra.
- Best for continuous, autonomous, compliance-ready coverage: Astra Security, with hybrid DAST and manual testing mapped to SOC 2, PCI DSS, and ISO 27001.
- Best for crowdsourced, AI-augmented testing: Synack, a vetted researcher network paired with Sara AI for continuous, scalable coverage.
- Best for OT/ICS and industrial environments: Redbot Security with specialized testing for SCADA, industrial control systems, and high-risk infrastructure.
How did We Build This?
As easy as it was to build this list from vendor spec sheets, with 8+ years of experience, we assessed Astra’s real-world manual pentesting across web, API, cloud, mobile, and network assets, including its compliance mapping to PCI DSS, SOC 2, HIPAA, and ISO 27001.
All competitor pricing and claims were cross-checked against public data and third-party estimates, with discrepancies flagged rather than selectively resolved.
This article was originally published in February 2024 and has been updated for freshness in August 2026 and technically reviewed by Chris Kubecka, Cybersecurity Researcher and Cyber-Warfare Specialist, to ensure accuracy and methodological integrity.
Top Pentesting Vendors Comparison
Penetration Testing Companies (Comprehensive Review)
Though this is not an exhaustive list, here’s how the top 10 penetration testing companies compare against each other:
1. Astra Security [Get Started]
Pricing: Starting at $2,999/yr
Astra Security is an autonomous, continuous penetration testing company with hybrid DAST and manual pentesting capabilities, delivered by CREST-certified experts, with ISO 27001-accreditation, following structured offensive security testing methodologies.
The hybrid model suits SaaS, mid-market, and enterprise teams that need continuous security validation aligned with OWASP standards, NIST security guidance, and modern application security posture management practices.
Reports are developer-friendly and include PoC artifacts demonstrating real-world exploitability, such as authentication bypass, business logic abuse, and access control weaknesses, to speed up fixes, with verifiable certificates upon remediation verification.
A “Fix with AI” feature pipes vulnerability context and fix guidance into AI coding assistants via MCP servers.
Key Features:
- A hybrid delivery model that pairs automated coverage with human expert-led exploitation for realistic results.
- Compliance-oriented services that map findings to PCI DSS, SOC 2, HIPAA, and NIST SP 800-115.
- Developer-centric reports with PoC videos, CVSS ratings, and Jira Slack integrations to streamline remediation.
- Evidence issuance and board-ready reporting that support procurement and vendor risk reviews
- Autonomous continuous pentests paired with AI validator & manual exploit validation, plus AI-generated fix guidance that can be pushed into IDEs or PRs to speed remediation.
Penetration testing services offered:
- Web, API, cloud, AI, mobile, and network pentesting covering attack surface enumeration, API authorization testing, cloud misconfiguration analysis, identity and access control validation, and real-world adversary simulation
- AI-assisted continuous checks + prioritized manual exploit work for real-world coverage
- Certified testers who publish research and hold OSCP, CEH, eWPTXv2, and other credentials
- Industry-tailored modules for fintech, healthcare, and regulated SaaS environments
- Deep DevOps integration with CI/CD connectors and automated retests for validated fixes
- Verifiable certificates and executive dashboards for procurement and board reporting.
Other services:
- Autonomous penetration testing
- Vulnerability management platform
- WAF and API security controls
- Threat monitoring and managed security
- Penetration Testing Services
What do the customers say:
Customers feel that Astra’s platform is intuitive and developer-friendly, combining automated scans with expert manual validation to produce prioritized fixes.
G2 rating: 4.6/5 ⭐(231 reviews)
2. Invicti Security
Pricing: Available on quote; third-party data show annual contracts starting at $4,000 to $7,000 approx.
Invicti is known for its scalable, automated application security testing platform that supports DevOps and AppSec teams. The pentesting company focuses on accurate DAST scans with proof-based validation to reduce false positives and speed remediation.
Many engineering organizations rely on Invicti as a penetration testing provider to maintain consistent coverage of web and API assets integrated into CI/CD pipelines, alongside application security posture management, by safely demonstrating exploitability to confirm vulnerabilities.
Key Features:
- Proof-based scanning that reduces wasted engineering time & prioritized reporting
- Enterprise-scale automation that fits into DevOps for continuous testing
- Unified AppSec that combines DAST with API discovery and vulnerability management
- Strong reporting, integration, and remediation workflow support
- Launched Invicti Agentic Pentest in 2026, combining autonomous AI agents with its proof-based DAST engine, part of a broader “agentic AppSec” push
Penetration testing services offered by Invicti:
- Web application security testing
- API discovery and penetration testing
- Automated DAST
- Compliance scanning support and regulatory checks
Other services:
- Application security posture management
- SCA capabilities
- AppSec consulting
What do the customers say:
Customers find Invicti’s web scanning to be pretty quick, intuitive, and highly accurate at detecting a broad range of vulnerabilities.
Users do warn about occasional slow performance, API/upgrade friction, and limited endpoint testing, which can undermine confidence in deeper manual pentests.
G2 rating: 4.5/5 ⭐ (69 reviews)
3. NetSPI
Pricing: Available on quote; third-party data show annual contracts starting at $7,000 to $13,000 approx.
NetSPI is one of the top-rated U.S.-based offensive security companies, known for its offensive pentesting services, BAS expertise, and enterprise-scale PTaaS that simulates real-world adversary tactics aligned with the MITRE ATT&CK framework.
NetSPI uses a platform approach, combining expert consulting with purpose-built proprietary tech to manage engagements, track findings, and support remediation efficiently with its Resolve platform.
Key Features:
- Breach and attack simulation expertise combined with platform orchestration.
- High-end technical talent for complex multi-layer engagements.
- Conducting in-depth, human-led testing across modern infra, including APIs, web apps, and cloud environments.
- Markets itself as “Human-led, AI-accelerated,” with AI-powered Continuous Pentesting and MCP integration, but specifics like AI findings validation are more visible in merger press (NetSPI/Synack) than in product docs
Penetration testing services offered by NetSPI:
- Network, web, and mobile penetration testing
- Cloud penetration testing
- API penetration testing
- Red/Purple teaming
- Breach and attack simulation (BAS)
Other services:
- Attack surface management
- Adversary readiness consulting
- Security validation & related offensive security services
What do the customers say:
Customers emphasize the abundant communication and support from the NetSPI team, including multiple kickoff calls and frequent check-ins to ensure clear scope and expectations.
The testers and pentest consultants are described as “top-notch,” and the Resolve platform is praised as a one-stop portal for all pentest activities.
G2 rating: 4.9/5 ⭐ (13 reviews)
4. Secureworks (A Sophos Company)
Pricing: Available on quote; third-party data show per endpoint is priced at $80-$120 approx.
Secureworks, a Sophos company, is another pick from the long list of top penetration testing companies in the USA, delivering threat intelligence-driven PTaaS backed by its Counter Threat Unit™ (CTU) research team (now part of Sophos X-Ops).
It works with security teams to provide strategic security validation informed by real-world adversary activity and offers findings with remediation guidance. Taegis capabilities may support detection, response, reporting, and collaboration as part of the broader Sophos portfolio.
Secureworks focuses on simulating current and emerging attack techniques using threat intelligence to help organizations validate their security posture against real-world threats.
Key Features:
- Threat intelligence-driven PTaaS backed by the CTU research team, now part of Sophos X-Ops
- Strategic security validation with detailed findings and remediation guidance
- Taegis capabilities integrated into Sophos’ broader security operations portfolio
- Flexible project-based and retainer engagement models, where available
- Taegis is Sophos’s AI-driven XDR platform, but its AI capabilities lie in detection and response, not in the penetration-testing service itself.
Penetration testing services offered by Secureworks:
- Cloud penetration testing
- External penetration testing
- Internal penetration testing
- Wireless network penetration testing
- Device and hardware penetration testing
- Physical security testing
- Laptop penetration testing
Other services:
- Managed XDR (Multi-modal XDR)
- Threat intelligence and security monitoring
- Incident response services
What do the customers say:
Customers feel that Secureworks combines expert-led threat intelligence with practical security validation, helping teams identify real-world risks and prioritize remediation. Many customers highlight the value of the Taegis platform and the ability to extend internal security resources with Secureworks’ expertise.
G2 rating: 4.6/5 ⭐(2649 reviews)
5. BreachLock
Pricing: Starting at $5,000 annually
BreachLock, based in the US, is a global pentesting provider offering comprehensive, hybrid VAPT solutions focused on continuous security validation, cost efficiency, and scalability.
It uses automation for baseline coverage and pairs it with manual validation to maintain accuracy and depth while keeping costs sensible.
The platform is aimed at teams that need frequent tests for variable digital targets, clear remediation workflows, and competitive pricing.
Key Features:
- A hybrid approach that balances automated scanning and manual verification
- Scalable plans optimized for repeatable checks
- Built-in ticketing and remediation workflows that ease developer handoffs
- Offers Breach360, an agentic AI-powered autonomous penetration testing solution, alongside AI-accelerated expert-led PTaaS
Penetration testing services offered by BreachLock:
- Web, API, mobile, cloud, and network pentesting
- IoT and embedded device assessments.
Other services:
- Dark web monitoring
- Phishing simulations
What do the customers say:
Customers feel BreachLock delivers thorough tests via an easy portal and detailed reports that help teams prioritize fixes.
G2 rating: 4.6/5 ⭐ (38 reviews)
6. Synack
Pricing: Starting at $4,181 per engagement
Synack is a penetration testing company that operates as a crowdsourced red-team PTaaS platform, providing customers with on-demand access to a highly vetted, specialized network of global security researchers.
It blends the Synack Red Team with AI capabilities from Sara AI Pentesting to deliver scalable, continuous testing and validated findings. The crowd-based model is best for enterprises needing broad coverage across dynamic assets.
Key Features:
- Crowdsourced red team (Synack Red Team) with strict researcher vetting and platform controls
- Agentic AI (named Sara) is designed to augment researcher-led testing and support continuous, targeted pentesting
- Secure testing environment and on-demand capacity
- Validated, actionable findings
- Pairs its vetted researcher network with Sara AI, an agentic system explicitly framed as AI plus human validation
Penetration testing services offered by Synack:
- Web, mobile, API, network, and cloud pentesting
- Red team and third-party assessments.
Other services:
- Vulnerability triage
- Attack surface discovery
- Security research and bug bounty management
G2 rating: 4.8/5 ⭐(21 reviews)
7. Redbot Security
Pricing: Available on quote; third-party data show contracts starting at $4,000 approx.
Redbot Security is a specialized pentesting provider known for delivering customized penetration testing engagements, including assessments for niche, high-risk systems like Industrial Control Systems (ICS) and SCADA.
It focuses on OT, ICS, and industrial environments while also covering cloud, web, API, networks, wireless infra, and AI systems.
They mostly cater to orgs requiring flexibility in scoping and budgeting, based on an organization’s risk profile, assets, and compliance requirements.
Key Features:
- OT and ICS expertise with scenario-based attack simulations
- Hands-on exploit chaining and impact-centric reporting
- Flexible scoping to fit constrained or high-risk industrial environments
- Coverage for evolving assets such as APIs, cloud infrastructure, and AI systems
- No public evidence of AI or autonomous testing capability; positioning remains manual, consultant-led, particularly for OT/ICS environments
Penetration testing services offered by Redbot Security:
- ICS/SCADA penetration testing
- Web, API, cloud infra, and mobile penetration testing
- External and internal network penetration testing
- Red/Purple team exercises & social engineering testing
- IOT & AI security testing
Other services:
- Vulnerability management
- Security architecture reviews
- Compliance gap analysis
- Managed threat detection and response
G2 rating: NA/5 ⭐(No reviews yet)
8. HackerOne
Pricing: Available on quote; third-party data show contracts starting at $15,000 approx.
HackerOne is a penetration testing company that connects organizations with a global community of vetted researchers for both bug bounty programs and PTaaS.
Many security teams use HackerOne as a flexible penetration testing vendor to gain fresh perspectives and continuous coverage across web, API, mobile, cloud, and other digital assets. HackerOne also now offers Agentic PTaaS, which combines AI agents with human security experts for continuous security validation.
Key Features:
- Crowdsourced expert community providing diverse testing techniques and perspectives
- Real-time PTaaS delivery with dashboarded findings and workflow integrations
- Broad asset coverage, including web, APIs, mobile, cloud, and emerging AI systems
- Offers agentic and autonomous pentesting capabilities integrated with its PTaaS and bug-bounty platform, including AI-agent leaderboards
Penetration testing services offered by HackerOne:
- Web app and API pentesting
- Mobile security assessments and cloud infra reviews
- Network/desktop testing + targeted PTaaS engagements
- Agentic PTaaS
Other services:
- Managed bug bounty programs
- Attack surface management & continuous threat-exposure management
- Training resources and advice on secure SDLC practices
What do the customers say:
Customers value HackerOne for access to a large, skilled group of testers and for a platform that scales vulnerability discovery beyond traditional pentests.
That advantage comes with trade-offs, though, since users report slow triage, inconsistent analyst performance, and a steep learning curve.
G2 rating: 4.5/5 ⭐ (84 reviews)
9. CrowdStrike
Pricing: Available on quote; third party data estimates contracts starting at $50,000 per engagement
CrowdStrike is a recognized pentest provider in enterprise risk management, threat intelligence, incident response, and endpoint security.
It uses threat intelligence, incident-response expertise, and insights from its Falcon platform to run adversary emulation and red-team exercises based on real-world attacker TTPs (Tactics, Techniques, and Procedures) that tune detection and response.
It best suits large enterprises that want intel-driven testing aligned with their security operations and incident-response capabilities.
Key Features:
- Intelligence-led adversary emulation using real-world TTPs
- Testing aligned with endpoint, cloud, and other security controls
- Strong red team capabilities and incident response alignment
- Charlotte AI is an agentic analyst for SOC detection and response (triage, investigation, agentic SOAR) but not in a penetration-testing capability
Penetration testing services offered by CrowdStrike:
- Penetration testing across components of the IT environment
- Red team operations and adversary emulation
- Cloud & infrastructure penetration testing
- Web application pentesting (context-specific)
Other services:
- MDR and Cloud security posture management (CSPM)
- Identity protection (Identity Threat Detection and Response)
- Incident response and digital forensics
G2 rating: 4.6/5 ⭐(765 reviews)
10. Rapid7
Pricing: Starting at $175/mo per app
Rapid7 is one of the most reputable penetration testing companies in the US, leveraging its expertise in vulnerability management (InsightVM), application security, penetration testing, and security operations capabilities to deliver platform-integrated penetration testing services.
It masters the PTaaS model by providing expert consultation through a cloud-based approach that combines expert-led testing with live results, tester communication, & on-demand retesting capabilities. This can work well for organizations that want a consolidated view of risk across vulnerability management and manual testing activities.
Key Features:
- Cloud-delivered PTaaS with live results and tester interaction
- Integration with Rapid7’s broader vulnerability-management and security-operations ecosystem
- Expert-led penetration testing supported by Rapid7’s security research and Metasploit expertise
- Engagement options range from one-off assessments to ongoing or recurring testing, depending on scope and contract
- InsightVM uses AI-driven risk prioritization (Predictive Prioritization) for vulnerability management
Penetration testing services offered by Rapid7:
- Web and mobile application penetration testing
- External and internal network penetration testing
- Cloud security assessments
- Red team exercises and adversary simulation
Other services:
- Vulnerability management (InsightVM)
- Application security testing (InsightAppSec)
- Security information and event management (SIEM)
- MDR and related security operation services
What do the customers say:
Customers often value Rapid7’s broad vulnerability-management capabilities and the visibility it provides across networks, workloads, and applications.
Many cite the in-depth visibility it provides across networks and workloads and the strong reporting capabilities, making it easier to prioritize and fix issues.
G2 rating: 4.3/5 ⭐ (263 reviews)
Looking for a more specific fit?
This list covers general-purpose picks, but the right vendor often depends on your industry, region, or budget. A few starting points:
- Penetration testing companies for SaaS
- Penetration testing companies for fintech
- Penetration testing companies for healthcare (USA)
- Penetration testing companies for healthcare (India)
- Penetration testing companies in India
- Penetration testing companies in the UK
- Penetration testing pricing and cost breakdown
Final Thoughts
The right penetration testing company isn’t the one with the flashiest services. It’s the one that matches your actual security maturity and compliance pressure.
If you are a SaaS startup needing continuous validation for enterprise buyers, PTaaS models like Astra Security or Secureworks make sense.
If you are managing critical infra/OT environments, specialized consulting from Redbot or NetSPI is the way to go. With a 14.6x surge in critical vulnerabilities, picking a provider based solely on price is strategic negligence.
Match methodology depth, certifications, and engagement flexibility to your risk profile and then shortlist accordingly.
FAQs
1. What assets generally get pentested by these pentesting companies?
Typical assets include external-facing networks, internal networks, web and mobile applications, APIs, cloud services, databases, and even IoT/embedded devices, depending on the scope.
2. What is the average cost of a penetration test?
A standard penetration test usually ranges between US $10,000-30,000, though simpler projects may start around $5,000, and complex engagements can exceed US $100,000.
This usually depends on factors such as scope, complexity, target assets, testing depth, and whether it’s a one-time assessment or part of a continuous engagement.
3. Do penetration testing firms also support compliance with HIPAA, ISO 27001, and PCI DSS?
Yes, leading penetration testing companies, including Astra Security, Secureworks, and NetSPI, help you meet major compliance requirements by mapping your engagement to them. Their services provide the documented evidence required for audits against standards such as PCI DSS, HIPAA, ISO 27001, and more.
4. Why do I need a penetration testing company despite having an internal security team?
Yes, you need a penetration testing company even with an internal security team.
An external provider brings an independent “attacker’s” perspective, specialised expertise, and a fresh set of eyes to uncover blind spots your internal team may miss due to familiarity or bias.
5. How should businesses compare pen testing companies?
Pen testing companies should be compared on manual expertise, testing method, asset coverage, compliance support, reporting, retesting, remediation help, and proof of exploitability. The right provider should find real attack paths, explain impact clearly, and avoid handing over only scanner output.
6. What are the top-rated penetration testing companies in the US?
Top-rated penetration testing companies in the US include Astra Security, NetSPI, Synack, Secureworks, and CrowdStrike, each highly rated by customers for different strengths. NetSPI and Synack lead on G2 ratings (4.9 and 4.8, respectively) for their expert-led testing depth, while Astra and Secureworks stand out for combining continuous, compliance-ready coverage with strong remediation support.
Nice informative article. I was curious on how to get the most out of a penetration testing services?
To get the most out of penetration testing services you must stick with a reputable provider you can trust, establish a clear testing scope that prioritizes important assets, provide detailed information regarding your network and systems, and have a realistic expectation of the outcomes.