Illinois Private Detectives

This web page lists private detectives in the State of Illinois. Before visiting any of these Illinois private detectives, be sure to verify their address, hours of operation, and appointment policies (if applicable). An private detective may have ceased operations or moved to a different location, and business hours can sometimes be irregular, especially on and around holidays. So a quick phone call can often save you time and aggravation.

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Related directory pages are highlighted below the Illinois private detective listings on this page. Links to Private Detective directory pages for adjacent States are provided at the bottom of the page. Illinois directory and map page links are also included there.


Chicagoland Detective Service Inc Chicago, Illinois 60647 1-773-772-2651 falconpi.com Located in Cook County	Armored Car Services Investigation Services Private Detectives

Hanrahan Investigations Inc Westchester, Illinois 60154 1-708-343-1888 www.hanrahaninvestigations.com Located in Cook County ☎ & 🔍	Investigation Services Private Detectives Private Investigators Security Systems & Services

Infomax Schaumburg, Illinois 60168 1-847-301-1475 www.infomaxinvestigations.com Located in Cook County ☎ & 🔍	Investigation Services Private Detectives Security Systems & Services

Kevin W McClain Investigations Centralia, Illinois 62801 1-618-532-1152 www.kevinwmcclain.com Located in Marion County ☎ & 🔍	Investigation Services Legal Services Private Detectives Private Investigators Security Systems & Services

Robert G Hanrahan Investigation Chicago, Illinois 60611 1-312-981-8770 www.rghinvestigations.com Located in Cook County ☎ & 🔍	Detective Agencies Employment Screening Services Investigation Services Private Detectives Private Investigators

Tactical Investigations Carbondale, Illinois 62903 1-618-534-4457 www.tacticalinvestigations.com Located in Jackson County	Computer Security Systems & Services Employment Background Checks Investigation Services Private Detectives

Tracy Rizzo Law Office Chicago, Illinois 60602 1-312-332-7788 www.tracyrizzo.com Located in Cook County ☎ & 🔍	Armored Car Services Attorneys Investigation Services Private Detectives

United Processing Inc Chicago, Illinois 60601 1-312-629-0140 www.unitedproc.com Located in Cook County	Investigation Services Legal Services Private Detectives Private Investigators Security Systems & Services

Illinois Private Detectives

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Illinois Directory and Map Pages

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Illinois Private Detectives