For over 50 years, MSI Detective Services has faithfully served individuals, business and government agencies with our professional investigator services.
MSI Detective Services is dedicated to solving crime and wrong doing by tackling and solving all types of cases by using creative and ingenious methods.
MSI Detective Services’ investigators are trained experts locating eavesdropping by Electronic Countermeasures and Debugging Sweeps.
MSI Detective Services’ investigators are experts at video surveillance – using state of the art hidden and long range cameras.
MSI Detective Services conducts theft investigations, computer forensic examinations and cellular forensics – recovering deleted data.
MSI Detective Services specializes in discreet, professional & confidential investigative services for our clients in Chicagoland area and anywhere in the world.
MSI Detective Services specializes in discreet, professional and confidential investigative services for our clients. Specializing in video surveillance, electronic countermeasures, cellular forensics and all lines of investigations. Learn More
Since 1959, MSI Detective Services has faithfully served our business clients in Chicago and the surrounding area. We are experts in fraud, theft, electronic counter espionage as well as all areas of business investigations. Learn More
Since 1959, MSI Detective Services serviced thousands of satisfied attorney clients by solving cases with creative methods. Locates, surveillance, process service, background and asset investigations as well as all lines of investigations. Learn More
MSI Detective Services is dedicated to assisting government agencies with our creativity and experience; Our creative methods put us in a class of our own. Clients marvel at the wealth and quality of information we are able to obtain. Learn More
MSI Detective Services investigators are experts at surveillance and capture video of subjects using long range and hidden cameras. MSI conducts successful surveillance operations at airports, hotels, convention halls and all high difficulty locations. Learn More
MSI Detective Services agents are specially trained in electronic countermeasures. Non-Linear Junction Detectors, Spectrum Analyzers and other countermeasure equipment is the grade used by our federal government agencies when conducting debugging sweeps. Learn More
MSI Detective Service investigators are experts at cellular smart phone as well as computer forensics. Our technicians have the capability to undelete text messages and other data from smart phones and computers using our specialized methods. Learn More
MSI Detective Service investigators are trained experts in the area of theft investigations. We are highly experienced and extensively trained in the art of interview & interrogation, we are able to quickly focus in on a suspect during the investigation. Learn More
DBA MSI Detective Services
2406 W Fullerton Ave
Chicago, IL 60647
Hours: 9am - 6pm M-F or by appointment
Nationwide Toll Free: 888-338-4545
Detective Agency Lic # 117-000206
Florida License # C2000584
Wisconsin License # 10426-63
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