MSI Detective Services – Chicago’s Premier Private Detective Agency


MSI Detective Services specializes in discreet, professional and confidential investigative services for clients located in the Chicagoland area.  MSI also handles many cases nationally and internationally as well. MSI maintains direct communication with you throughout the investigation so you never have to wait long for results. Headquartered in Chicago, MSI is a full-service private detective agency.  MSI conducts investigations for attorneys, businesses, insurance companies, and individuals. MSI experienced private detectives are here to help with all your investigative needs. MSI investigators are available for a free confidential consultation, Monday through Friday, 9am – 6pm. For all emergency services, MSI private investigators are available 24 hours a day, 365 days a year. Dial extension 911 after you reach our after hours voice mail to leave an emergency message.  Our toll-free number is (888) 338-4545.


For over 50 years, MSI Detective Services has faithfully served the city of Chicago and its surrounding areas including Evanston, Skokie, Glenview, Highland Park, Wilmette, Kenilworth, Winnetka, Glencoe, Northbrook, Niles, Morton Grove, Des Plaines, Hoffman Estates, Deerfield, Waukegan, Oak Brook, Naperville, Hinsdale, La Grange, Darien, Schaumburg, Arlington Heights, Elmhurst, Palatine, Buffalo Grove, Crystal Lake, Park Ridge, Niles, Oak Park, Lisle, Aurora, Palos Hills, Orland Park, Joliet, Lemont, Evergreen Park, and Oak Lawn – just to name a few. Our Wisconsin Licensed Investigators provide premier detective services across the state of Wisconsin as well.


MSI is dedicated to creativity by tackling and solving cases using creative, ingenious methods. Our clients often marvel at the wealth and quality of information we are able to obtain. Surveillance, Missing Persons, Undercover Investigations, Background Checks and other services require a creative approach.  Undercover operatives cleverly obtain facts through pretext investigations, professional investigative decoys, or through undercover investigators working inside company warehouses and factories. Our investigators get the facts needed to solve any case.


MSI detectives are passionate about investigative work. No two days are ever the same, which is the contributing factor behind our rich 50 plus year history and unrivaled reputation. We aim high, approaching every case with great energy and excitement while maintaining the cool composure of established veterans. MSI’s passion, evidenced by our relentless desire to solve your crisis, is rivaled only by our compassion for serving people in need – people with nowhere else to turn.

We pride ourselves in transforming our client’s impossible situations into impressive victories, a fact that has not escaped those we serve. We have heard countless stories from our satisfied clients as to how we succeeded in obtaining the facts where other investigators failed.


MSI Detective Services’ investigators have vast experience in all areas of investigation including video surveillance, electronic countermeasures or debugging, locate investigations, missing person investigations, theft investigations, process service, interview and interrogation, as well as other specialized areas of investigations. We have solved a wide variety of cases over the past 50 plus years, integrating past experience with cutting-edge technology to solve cases in an expeditious, cost-effective manner. Gathering intelligence not only takes intelligence, but experience as well.  Interrogation, Theft Investigations, Surveillance, Debugging, Room Sweeps, Electronic Countermeasures, Locates, Computer Forensics, Cell Phone Data Extractions and most other investigations are handled with the greatest expertise and knowledge.


Companies don’t stay in business for as long as we have without a commitment to doing things right the first time. MSI’s quality of work is well known by our clients and our competitors. Our business success is unique in the specialized niche we occupy, and it’s due to one thing – satisfied clients. Our A+, Complaint-free, Accredited Better Business Bureau rating is a testament to our high quality business practices handling investigations for attorneys, insurance companies, businesses, and individuals.


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Perry Myers, CFE, is a published author for Perry’s profile page can be found at: ezinearticles