Inner City 100

AGB Investigative Services, Inc.

    Investigation and security firm AGB Investigative Services tries to hire local candidates and provides extensive technical training and professional development, from GED classes to a 14-week security academy.

    Company Information

    Four-Year Revenue Growth (%)161%
    2019 Revenue-
    HQ LocationChicago, IL
    Business Leader(s)John Griffin Jr.
    TitlePresident