Pentesting Providers
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Bishop Fox

Tempe, Arizona-headquartered offensive security firm and Black Hat / DEF CON regulars, makers of the Cosmos continuous attack surface management platform.

Featured in: Best Red Teaming Companies

Best OverallElite TestersResearch Pioneers
Founded
2005
Team Size
201-500
Geography
Global
Markets
North America, Global
Last verified: May 2026

Key facts

  • Founded in 2005.
  • Headquartered in Tempe, Arizona, United States.
  • Team of 201-500 security professionals.
  • Holds SOC 2 and OSCP Employer accreditation.
  • Delivers 11 penetration testing services.
  • Typical response time: 1-2 weeks.
  • Operates globally, with delivery across North America.
  • Specialises in Continuous Penetration Testing, Attack Surface Management, and Product Security.
  • Compliance expertise across SOC 2, PCI DSS, HIPAA, NIST CSF, and ISO 27001.
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About

Bishop Fox is a Tempe, Arizona-headquartered offensive security firm and the maker of Cosmos, a continuous attack surface management platform. Founded in 2005, the company has built a reputation for combining deep technical expertise with innovative approaches to adversarial testing. The firm serves Fortune 500 companies and high-growth technology companies with services spanning application penetration testing, network testing, red teaming, cloud security assessments, and their Cosmos platform.

Services

Web Application Penetration TestingNetwork Penetration TestingMobile App Penetration TestingCloud Penetration TestingAPI Penetration TestingSocial Engineering
+ Also offers 5 more services
Red TeamingPurple TeamingSource Code ReviewConfiguration ReviewAssumed Breach Testing

Accreditations

SOC 2OSCP Employer

Compliance Expertise

SOC 2PCI DSSHIPAANIST CSFISO 27001CCPA

Best For

EnterpriseMid-Market
Industries
TechnologyFinancial ServicesHealthcareRetail & E-commerce

Methodologies

OWASPPTESNISTOSSTMM

Team Activity

Active in CTF competitions (Top 10 in multiple CTF competitions)
Inc. 5000 Fastest Growing Companies
Speaker: Black Hat
Speaker: DEF CON
Speaker: RSA Conference
Speaker: ShmooCon
Open source: Sliver
Open source: Gauntlet
Open source: Cloudfox

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