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Cybersecurity Firms in the Vanguard Directory

Cybersecurity firms assess where a business is exposed and close the gaps: risk assessments, penetration testing, managed detection and monitoring, incident response after a breach or ransomware attack, employee phishing training, and compliance work for standards like SOC 2, HIPAA, and PCI. Visitors arrive here after an incident, ahead of an audit a customer or insurer demands, or because a cyber insurance application asked questions they could not answer.

No state license covers security work, so look at individual credentials such as CISSP, OSCP, or CISA and at the firm’s own audits. Ask exactly what is in scope for a test, whether findings come with remediation steps and a retest, who on the team will do the work, and how they handle your data during the engagement. Assessments and penetration tests are usually fixed-price by scope, while monitoring and response run on a monthly retainer, so ask what triggers extra charges during an incident. Smaller companies that need day-to-day help may be better served by IT consultants or IT service providers who bundle security with support.

The firms listed here wrote their own entries, and a person reviewed each before it was published. If you provide security services, apply to get listed — free, and only a few minutes long.