Ranked · 46 of 90 assessed
Ordered by Agency List ScoreBridging legal and technology with cybersecurity expertise
Cybersecurity solutions for DoD and defense contractors
SEO and PPC services for inbound lead capture and search visibility
Secure IT services and cybersecurity for Colorado organizations
Cybersecurity risk management and compliance for government and commercial sectors
Managed security, hosting, and compliance services built for government and healthcare organizations
Ransomware negotiation and dark web investigation services
Offensive security services for AI and cloud environments
Empowers organizations with risk management and cybersecurity solutions
Cybersecurity solutions for threat detection and risk management
Managed IT, cybersecurity, and network support for Houston businesses since 2014
Information security experts offering risk assessment and incident response
Healthcare cybersecurity solutions for hospitals and health systems
Managed IT, cybersecurity, and AI consulting for healthcare, government, and manufacturing clients
Cybersecurity and IT services for critical infrastructure protection
SEO and PPC services for inbound lead capture and search visibility
SEO and PPC services for inbound lead capture and search visibility
Empowers with Comprehensive XDR Platform and Managed Staffing
Managed IT and cybersecurity services for small to medium businesses
Cybersecurity assessments, testing, and security awareness training
Managed IT, security operations, and Microsoft cloud services for US businesses
Managed IT, security, and compliance support for regulated industries
SEO and PPC services for inbound lead capture and search visibility
SEO and PPC services for inbound lead capture and search visibility
Licensed security services with surveillance and executive protection
Cybersecurity and compliance services for risk management success
Managed IT, cybersecurity, and 24/7 support for Anchorage businesses
Enterprise cybersecurity solutions with a focus on performance management and compliance.
Cybersecurity risk management for commercial and government sectors
Security assessments, compliance audits, and incident response planning for regulated industries
Cybersecurity and network services for resilient enterprises
Cybersecurity services for network providers and healthcare industries
Cybersecurity consulting for defense contractors and regulated organizations navigating CMMC and NIST compliance
Penetration testing, red teaming, and compliance readiness across networks, cloud, and OT
Specializes in penetration testing and risk advisory services
Advising on cyber risk and emerging technology challenges
Cybersecurity consulting with custom solutions and expert guidance
Cybersecurity solutions for healthcare, finance, and government sectors
Managed IT, cybersecurity, and cloud services for Texas SMBs, 24/7
Cybersecurity and IT services for diverse industries
Cybersecurity and IT management for diverse industries
Cybersecurity leadership and AI integration for critical infrastructure.
Enterprise-grade cybersecurity testing at mid-market prices
Cybersecurity and IT management with 24/7 ransomware recovery
SEO and PPC services for inbound lead capture and search visibility
Cybersecurity solutions for healthcare, finance, and education sectors
Also in United States · 52 not ranked here
8 have not yet been assessed on the Agency List Score. Alphabetical.About this ranking
What this page ranks
This page ranks 46 of the 90 assessed penetration testing agencies in United States — the ones carrying a published score — out of 98 listed.
The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.
Cohorts and awards
Agencies are compared within a cohort — here, Penetration Testing in United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 90, so the strongest award available here is top 5%.
The 8 penetration testing agencies not yet assessed are listed on this page but not ranked.
A further 44 were assessed and no published evidence of their work was found, so no score is shown for them.
Paid placement
Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.
Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.
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Questions
- How many penetration testing agencies are in United States?
- 98 are listed on Agency List in United States. 90 of them have been assessed on the Agency List Score as of October 2026, and 46 of those carry a published score.
- Which penetration testing agency in United States is ranked highest?
- Digital4nx Group has the top Agency List Score, 98, among the 90 assessed agencies in Penetration Testing in United States.
- Why are 52 penetration testing agencies listed here but not ranked?
- 8 of the 98 listed have not yet been assessed on the Agency List Score. A further 44 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
- How is the ranking determined?
- By Agency List Score, within the Penetration Testing in United States cohort of 90 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.