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STO Investigations, Inc. - Security Services, Private Investigations, Process Service

Thank you for visiting STO Investigations, Inc. official website.  Since 1998, we have been serving numerous Illinois businesses and attorneys with process service, legal investigations, uniformed security and retail loss prevention services.  It has always been our goal to provide each customer with customized, individual detective and security services.  We are currently updating our website so check back often to see our changes.  Please feel free to contact us for a no obligation, free quote.  We are confident that we will provide you with the service you expect.

Illinois Statewide Process Service, Security and Detective Services 866-426-3960

Professionally Licensed:

Illinois Licensed Investigations Agency: 117-001011

Illinois Licensed Security Agency: 122-000912

Contact Us


 

 Chicago Office Oak Forest Office 
 200 South Wacker Drive Suite 3100  6006 W. 159th Street Building D Unit 1W
 Chicago, Illinois 60606  Oak Forest, Illinois 60452
 866-426-3960 Toll Free  866-426-3960 Toll Free
 312-674-4982 In Illinois 708-752-8804 In Illinois 

 

Email us at info@STOInvestigations.com


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