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Anthony Grenga

CEO and director at Vigilant Sec.

ExecutiveDirector
Updated Nov 10, 2026·Latest SEC filing Jul 2, 2026·Suggest an edit

About Anthony Grenga

Anthony Grenga is CEO and director at Vigilant Sec.

Experience

This experience comes from Anthony Grenga's profile and from SEC filings. For roles taken from filings, the years are when the filings name Anthony Grenga in the role, so the role may have started earlier or lasted longer.

Vigilant Sec, Inc. Current
Co-Founder | CEO (2023 – Present)
Director
2023 – Present · Baltimore, MD
Managed cybersecurity services for organizations, including monitoring and threat response.
IronNet Cybersecurity
VP, Cyber Operations
2017 – 2023
National Security Agency
Technical Lead
2014 – 2017
Air Force Institute of Technology
Graduate Researcher
2012 – 2014

Key Colleagues at Startups

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

Vigilant Sec, Inc. · Form D, Jul 2, 2026
KA
JL
Jennifer Leonard
VP of Engineering & Compliance
JF
Joseph Fitzpatrick
Executive officer

Sources

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