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  • Diligentia Group is a boutique investigative firm dedicated to providing law firms, financial institutions and decision makers with comprehensive background investigations, due diligence investigations and legal investigation services.
  • Have a question? Want to discuss a confidential matter in more detail?

    (A 5-minute call can save you more than just money on car insurance!)

    Diligentia Group, Inc.
    Based out of our headquarters in Westchester County we are a licensed private investigator in New York, however, we conduct investigations throughout the United States and the world.

    P.O. Box 668
    Croton Falls, New York 10519

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    Tel: +1 914 500 8790
    Fax: +1 877 500 8795

    If you want to contact our founder and President, Brian Willingham, directly, he can be reached at brian[at]

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