About Us

Our Mission

Experience You Can Trust 

We guarantee effective and knowledgeable representation for you and your business. Our reputation and history of success with our clients and their business needs speaks for itself. There's no substitution for the best.


02. Dedicated and Loyal PI's

The complex, important, requests we receive from our clients are treated with the upmost importance by our seasoned investigators. 



Comprehensive Investigation Service you can trust.


Comprehensive Investigative Services is an independently owned and operated, licensed Illinois Private Investigation firm located in the Chicagoland area. Offering an extensive array of investigative services.

Comprehensive Investigative Services



Missing Persons

Help finding your loved one, or other persons of interest.

Infidelity Investigation

Get the proof you need to rest easy.

Accident Investigation

Get proof of an injury or an accident.