Best Red Teaming Companies in USA

23 red teaming providers serve USA clients. This list ranks them by accreditation depth, methodology, and editorial scoring. Red team engagements need providers with custom tooling, EDR-evasion experience, and threat-intelligence-driven scenario design, not just penetration testing rebranded. US buyers should look for FedRAMP 3PAO accreditation for federal cloud work, PCI QSA for payment-handling environments, and SOC 2 audits for SaaS clients.

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23 providers found
23 providers
Madison, South Dakota, United States · Checked Sept 2026

US cybersecurity consulting, audit and testing firm founded in 2004, focused on community banks and credit unions, with external, internal, web application, wireless and PCI DSS penetration testing plus CMMC Level 1 and 2 readiness work.

Services: Network, Web Application, Wireless, Social Engineering +3
Tampa, Florida, United States · Checked Sept 2026

Compliance audit firm delivering web application and network penetration testing with findings mapped to MITRE ATT&CK, alongside the SOC 2, ISO 27001, CMMC, and FedRAMP assessments the results feed into, from a testing team kept independent of the audit side.

Accreditations: FedRAMP 3PAO, CMMC C3PAO, HITRUST Authorized Assessor, PCI QSA
Services: Web Application, Network, Cloud, Red Teaming +3
Spearfish, South Dakota, United States · Checked Sept 2026

Community-driven penetration testing firm known for free security education, open-source tools, Wild West Hackin' Fest, and practical offensive security services.

Accreditations: SOC 2
Services: Network, Web Application, Social Engineering, Red Teaming +4
Austin, Texas, United States · Checked Sept 2026

Global cybersecurity leader leveraging world-class threat intelligence from the Falcon platform to deliver intelligence-led penetration testing and red teaming.

Accreditations: SOC 2, ISO 27001
Services: Red Teaming, Network, Web Application, Cloud +4
Atlanta, Georgia, United States · Checked Sept 2026

US penetration testing firm founded in 2011, running 600+ engagements a year with a fully remote, US-based team. Manual, expert-led testing across web, network, cloud, mobile, wireless, OT/ICS, and AI/LLM. Gartner Sample Vendor for PTaaS.

Accreditations: OSCP Employer
Services: Web Application, Network, Mobile App, Cloud +12
Reston, United States · Checked Sept 2026

US-headquartered cybersecurity consultancy with 800+ employees, serving ~40% of the Fortune 500. FedRAMP 3PAO, PCI QSA, and HITRUST accreditations.

Accreditations: FedRAMP 3PAO, PCI QSA, SOC 2, ISO 27001
Services: Web Application, Network, Mobile App, Cloud +11
Seattle, Washington, United States · Checked Sept 2026

Boutique security consultancy specialising in IoT, SCADA/ICS, embedded systems, and hardware security research with world-renowned researchers.

Accreditations: OSCP Employer
Services: Web Application, Network, IoT, SCADA/ICS +7
New York, United States · Checked Sept 2026

Global risk advisory firm with a 400+ person cyber practice. IR-led penetration testing that feeds active breach intelligence straight into test scoping.

Accreditations: PCI QSA, ISO 27001, SOC 2
Services: Web Application, Network, Cloud, API +8
Denver, United States · Checked Sept 2026

Denver-based offensive security boutique with a community-first red team culture. Home of PTES co-authors and the Continuous Red Team retainer.

Accreditations: OSCP Employer, SOC 2
Services: Web Application, Network, Cloud, Wireless +6
Reston, Virginia, United States · Checked Apr 2026

World-renowned cybersecurity firm now part of Google Cloud, delivering threat intelligence-led penetration testing and red teaming informed by front-line incident response experience.

Accreditations: SOC 2, ISO 27001, FedRAMP 3PAO
Services: Red Teaming, Purple Teaming, Network, Web Application +5
Minneapolis, Minnesota, United States · Checked Sept 2026

Penetration testing firm trusted by nine of the top ten US banks, with the Resolve platform for continuous attack surface management.

Accreditations: SOC 2, ISO 27001, CREST
Services: Web Application, Network, Cloud, API +7
New York, New York, United States · Checked Sept 2026

Creators of OSCP, Kali Linux, and Exploit-DB, offering penetration testing services from the team that trains the world's ethical hackers.

Accreditations: OSCP Employer
Services: Web Application, Network, Red Teaming, Social Engineering +4

Best Red Teaming Companies in USA, FAQs

How do I find the best red teaming provider in USA?+

Start by shortlisting providers with verified red teaming experience and accreditations that match your industry. This page lists 23 providers offering red teaming to USA clients, ranked by accreditation depth, methodology, and editorial scoring. Compare scope, methodology, and pricing across at least three providers before committing.

What accreditations matter most for red teaming in USA?+

US buyers should look for FedRAMP 3PAO accreditation for federal cloud work, PCI QSA for payment-handling environments, and SOC 2 audits for SaaS clients. On top of those, Red team engagements need providers with custom tooling, EDR-evasion experience, and threat-intelligence-driven scenario design, not just penetration testing rebranded.

How much does red teaming cost in USA?+

Red Teaming engagements in USA typically range from $5,000 to $50,000 depending on scope, complexity, and required accreditations. Boutique providers often start lower, while large consultancies and engagements requiring CREST, CBEST, or FedRAMP 3PAO accreditation sit at the higher end. Request fixed-scope quotes from at least three providers to benchmark fair market pricing.

How long does a red teaming engagement take in USA?+

Most red teaming engagements in USA run between 1 and 4 weeks of active testing, plus 1 to 2 weeks for reporting and remediation review. Larger or more regulated engagements (red team programmes, multi-environment cloud assessments) can extend to 6 to 12 weeks. Build buffer time into procurement schedules to allow for accredited tester availability.