ADSAI members foster and maintain good working relations with law enforcement organizations, the media and the business community. ADSAI develops and encourages the practice of high standards of personal and professional conduct among those persons serving in the investigative and security industry.

Founded in 1933
Incorporated on September 13, 1937


ADSAI Membership Yearly Dues

“For questions or issues with dues renewal, please contact Membership Chair, Bia Tyk, or Secretary, Kathryn LeFevour.”

By Laws Effective October 2018

 Associated Detectives & Security Agencies of Illinois

“For any questions or inquiries regarding ADSAI, please contact the Secretary, “For any questions or inquiries regard Kathyrn LeFevour“

To become a sponsor of ADSAI, please select one of the following.


The Mechanic Group is a leading private security insurance
program agent and investigator insurance program agent”


The National Council of Investigation and Security Services, Inc.Security Services, Inc., is a cooperative effort of those companies and associations responsible for providing private security and investigation services to the legal profession, business community,government and the public.

Member Since 1976


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