Penetration Testing
15 providers
Simulated cyberattacks to find vulnerabilities before attackers do.
Bishop Fox
Tempe, AZ
Offensive security firm specializing in penetration testing and red team operations.
Black Hills Information Security
Spearfish, SD
Penetration testing, threat hunting, and security training.
Bugcrowd
San Francisco, CA
Crowdsourced security testing including bug bounty and pen test programs.
Cobalt
San Francisco, CA
Pentest as a Service (PtaaS) platform connecting companies with vetted pentesters.
Cyber Defense Labs
Tulsa, OK
Boutique cybersecurity firm providing penetration testing, vulnerability assessments, and security program development.
Horizon3.ai
San Francisco, CA
Autonomous penetration testing platform (NodeZero) enabling organizations to continuously find and fix exploitable attack paths.
LMG Security
Missoula, MT
Cybersecurity consulting firm offering incident response, penetration testing, and training with a focus on practical, real-world security.
NCC Group
New York, NY
Global cybersecurity consulting, managed services, and software assurance.
NetSPI
Minneapolis, MN
Proactive security testing and attack surface management.
nVisium
Falls Church, VA
Application security consulting firm specializing in secure code review, dynamic testing, and DevSecOps transformation.
Offensive Security (OffSec)
New York, NY
Creators of Kali Linux, OSCP certification, and pen testing training.
Rapid7
Boston, MA
Security analytics and automation for vulnerability management, detection and response.
Synack
Redwood City, CA
Crowdsourced security testing platform combining a global network of ethical hackers with AI to deliver comprehensive pentesting.
Trimarc Security
Seattle, WA
Active Directory and identity security experts providing assessments, hardening, and monitoring for enterprise environments.
Trustwave
Chicago, IL
Managed security services, consulting, and threat detection.