| Name | Title | Contact Details |
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"Safety Service Systems specializes in providing professional security guards, human service operations and project management. ""Safety Service Systems"" is the common trade name of three Illinois corporations. S3: Safety Service Systems, Inc. is the"
SPY Source is a Des Plaines, IL-based company in the Business Services sector.
IPC International is one of the leading companies in the Business Services sector.
Statewide Guard and Investigative Services is a Chicago, IL-based company in the Business Services sector.
American Security Systems is a Long Island City, NY-based company in the Business Services sector.