Private Investigation and Security Consulting Firm in Elgin, IL

American Sentinel is founded on the principles of truth, honor, and integrity. The sentinel is a watchman, a guardian, and soldier whose discipline and mindful eye keep those they protect safe. We live these values and use it to guide us through our work serving the Chicago area.

process-service

PROCESS SERVICE

We provide professional process of service accurately and timely, delivering a high rate of success in serving your documents. We provide notary services and same day rush services.

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Security-consulting

SECURITY CONSULTING

Our team of professionals will assess your specific facility locations and develop an in-depth, actionable security plan that includes human response training and additional safety protocols.

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background-investigations

PRIVATE INVESTIGATORS

We provide a full suite of private investigation services ranging from criminal case review and defense investigations, to insurance claim investigations, locating persons and assets, and surveillance.

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Our Leadership

American Sentinel is co-founded by security professionals with an extensive background in law enforcement, SWAT, and private investigations.

Joshua Mailey believes integrity & honesty are the cornerstones of life and strives to provide clients the highest level of protection and security. He has proudly served his country and community for 30+ years in military and law enforcement.

Michael Zeigler has a diverse background in law enforcement. As squad leader of an emergency response team, he was responsible for hundreds of high risk missions to serve and protect the community.

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American Sentinel Leadership Team

What Our Clients Are Saying

“American Sentinel is our go to! They are fast, friendly and most importantly very prompt and efficient!”
Dawn M • Paralegal
“We needed a security consultant to assist us with revamping up our corporate security strategy. American Sentinel was the answer!”
Mike S • Chief Security Office

Expertise Spotlight: Workplace Violence Planning

According to a 2019 CFOI report, 19% of HR professionals are unsure or don’t know what to do when they witness or are involved in a workplace violence incident and 55% don’t know whether their organization has a workplace violence prevention program.
While no prevention plan is an absolute protection against violence at work, understanding how to prepare for and react to violent conduct is imperative.

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