Antigen Security: Detailed Company Information & Corporate Profile

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Summary

Antigen Security was founded in 2020 and is based in Flint, Michigan, serving clients with private security solutions as part of a small but focused firm of 10‑50 professionals that generates $1‑$10 million in revenue.

Its portfolio centers on Incident Response, Digital Forensics, Recovery Engineering, Security Consulting, Managed Detection & Response (MDR), Digital Forensics and Incident Response (DFIR), Managed Service Provider (MSP) offerings, cyber insurance assessments, and broader cyber risk management.

The team is led by CEO Steven Legg, with operational expertise from Sr. Security Engineer Finn and Senior Incident Response Consultant Maurice Nash; the revenue side is guided by Chief Revenue Officer Matt McGonigle. Marketing is driven by Cassidy Messner while business development is handled by Christiana Stramaglia.

Antigen Security Websiteantigensecurity.com
Phone Number517-940-6288
Industries
Antigen Security Headquarters AddressFlint, MI, 48502 US
Company Size10-50 employees
Specialities & ServicesIncident Response, Digital Forensics, Recovery Engineering, Security Consulting, MDR, DFIR, MSP, Cyber insurance assessments, cyber risk manageent
Founded2020
Estimated Annual Revenue$1 - 10M
Updated:2026-10-21

Workforce Turnover

Length of Employment

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Antigen Security's workforce includes employees across a wide range of tenure levels.

50% have been with the company for 3 to 4 years50% have been with the company for 5 to 7 years
Contact top employees from Antigen Security
Finn
FinnSr. Security Engineer
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Maurice Nash
Maurice NashSenior Incident Response Consultant
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Matt McGonigle
Matt McGonigleChief Revenue Officer (CRO)
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Steven Legg
Steven LeggCo-Founder & Chief Executive Officer
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Nicole Legg
Nicole LeggDigital Forensics and Incident Response Intern
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Bradley McMahon
Bradley McMahonChief Technology Officer
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Cassidy Messner
Cassidy MessnerMarketing Specialist
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Christiana Stramaglia
Christiana StramagliaBusiness Development Representative
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Hassan Faraj
Hassan FarajSecurity Operations Center Analyst
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Antigen Security Corporate Information: FAQ

Antigen Security operates in the Private Security industries. More details can be found on the official website: antigensecurity.com.
Antigen Security has offices located in Flint, US.
The headquarters of Antigen Security are located in Flint, United States.
You can contact Antigen Security by phone at 517-940-6288.
Antigen Security currently employs 10-50 people.

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