Call us at (618) 327-9526
Advanced Investigative Services, Incorporated

About Your Local Private Investigator in Nashville, Illinois

Advanced Investigative Services, Inc has earned its reputation of being aggressive but extremely ethical, producing quality results for all our clients. Each of our employees has extensive experience as a licensed investigator and security officer; we continuously place onsite, private investigators in strategic locations throughout the overall geographic area that we service.

A Full Service Investigative and Security Agency

  • Primarily employ experienced law enforcement officers and other professional investigators
  • Offer competitive rates throughout the Midwest
  • Maintain the highest level of confidentiality between our clients
  • Utilize the most advanced, modern technology and equipment available for our industry
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Geographical Area

Advanced Investigative Services, Inc has a wide service area and we can cover the states of Arkansas, Illinois, Indiana, Kansas, Kentucky, Missouri, and Tennessee with immediate service for any investigative matter. AIS has a team of licensed and insured investigators residing in strategic locations of all the regions we service, ready to work as your private investigator.

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Our Mission

To provide timely, professional, and comprehensive investigative and security results in an aggressive, but the highly professional and ethical manner, with the intent to build a continuing relationship with the professional and corporate communities, as well as the general public.


The following memberships allow for the networking of national and international investigators, who have applied and met rigorous standards before being accepted into the organization. These contacts provide for timely investigative assistance on a worldwide basis:

  • NCISS (National Council of Investigators and Security Services) *
  • CII (Council of International Investigators) *
  • CIPI (Certified Investigative Professionals) *
  • IACC (International Anticounterfeiting Coalition) *
  • MAPI (Missouri Association of Private Investigators) *
  • KPIA (Kentucky Professional Investigators Association) *
  • Nashville, Illinois Chamber of Commerce

*These groups are nationwide and/or worldwide networks of licensed private investigators and security professionals, where applicants are carefully screened before being admitted. Members share knowledge and operational practices on a secure connection, which provides the world’s greatest resources for competency and professionalism in the industry. The most experienced investigators, who are using the latest in technology, are immediately available as a resource.

Fee Schedule

Advanced Investigative Services, Inc offers the most competitive rates throughout the Midwest and our fees are based on the complexity of your requested investigation service, including the use of investigative specialists. The basic fee schedule is negotiable depending on the scope of the investigation and the type of inquiry that is being requested.

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