Keith Alexander

About Keith Alexander

Keith Alexander is a director at Vigilant Sec.

Experience

This experience comes from SEC filings. The years are when the filings name Keith Alexander in the role, so the role may have started earlier or lasted longer.

Vigilant Sec, Inc.

Director

2026 · Baltimore, MD

Managed cybersecurity services for organizations, including monitoring and threat response.

Key Colleagues at Startups

The people Keith Alexander works with at each company, as listed on that company's latest Form D.

Sources

1. SECVigilant Sec, Inc. Form D, filed Jul 2, 2026