About Us

MSI Detective Services

About Us

Since 1959, MSI Detective Services has been providing top quality investigations to attorneys, businesses, insurance companies and individuals.

Who We Are

Why does anyone use a particular company or brand?

People form loyalties when they are pleased with the results. Since 1959, MSI Detective Services has been providing quality investigations to attorneys, business, insurance companies and individuals. Because MSI has maintained a continuous excellent quality. MSI still retains many of our original clients from over 30 years ago.

Chicago Detective Agency

1. Services

It’s in our name! MSI Detective Services maintains 24 hour emergency service plus extended in-office business hours of 9am – 5pm, Monday through Friday to our clients. You may reach MSI every day of the year. MSI realizes the nature of investigations is not always a do it when you can situation. That is why MSI uses the word RUSH, to give assignments a top priority. MSI has a network of national and international investigators to conduct investigations anywhere at any time. Now, that’s service!
MSI is dedicated to creativity. MSI has tackled and solved many cases utilizing creative and ingenious methods. Our clients often marvel at how we obtain the most guarded information.


MSI Detective Services experience alone does not necessarily make us good at what we do. MSI investigators realize that in order to maintain excellence, we must continue to strive to learn new areas of investigations to better serve the client. MSI provides all of our investigators with thorough training and continuing education. Education does not stop after the initial training period, but continues throughout the course of their employment.


Yes, MSI still gets excited about our work! Years of conducting investigations has not dimmed MSI investigators dedication to solve a case. We still aim high and approach our work with energy, excitement and the the experience of a veteran. MSI hopes that you appreciate our


MSI Detective Services investigators have vast experience in all areas of investigations. In our 40 years, MSI investigators have solved a wide variety of cases. We constantly draw upon these past experiences to solve your case in the most expeditious and cost effective manner. Gathering intelligence not only takes intelligence, but experience as well.


Companies do not stay in business long without a commitment to doing things right. MSI is no exception. The quality of our work is well known by our clients. The most important aspect of MSI business is keeping our clients satisfied.

Chicago Detective Agency- Professional and Dedicated Service

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