Erika J.
12/12/2025
Highly recommend this firm. They are accessible, responsive and go the extra mile for their clients. I had a very challenging case but Will was helpful and stayed in contact with me throughout the...
Carlson Investigations
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1555 Sherman Ave
Evanston, IL 60201
Carlson Investigations, Inc. is a premier investigative agency serving the entire Chicagoland area for over a decade. Founded by renowned private investigator Susan L. Carlson, the family-owned firm specializes in surveillance, process service, and customized projects for both private and public sector clients.
With a strong focus on client satisfaction, Carlson Investigations prides itself on providing personalized attention and delivering high-quality results. Led by CEO William Carlson, the experienced team excels in executing challenging process serving assignments and conducting thorough investigations, making them a trusted choice for individuals and law firms alike.
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Reviews
4.527 reviewsPaula S.
11/30/2025
Gratitude for the excellent work William Carlson did on the investigation. Mr. Carlson is a very experienced investigator, kept me informed of what was going on, and will definitely use his...
Stefanie S.
9/13/2024
Will Carlson does an incredible job! After working with a company that didn't do a good job, Will came in and in less than 24 hours had majority of the job done! I found Will to be a no-nonsense...
George P.
4/15/2025
We used Carlson Investigation twice to serve court papers to dead beat tenants. Carslon exceeded our expectations. We highly recommend them. Thank you.
Eric B.
1/10/2023
I am on the west coast and needed to have a service done in the Chicago area. I called and spoke to William about my needs and perhaps some challenges finding the individual to serve. William was...
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