Company overview

ACM Investigations LLC is a privately owned company that was founded by Alexandre C. Matti in the beautiful Sioux Falls, South Dakota back in September 2018.

Our goal is to provide high-end quality investigation, and surveillance services to the residents as well as the businesses of South Dakota.

Our Firm specializes in Workers’ Comp Fraud Surveillance, Covert Surveillance, Infidelity Surveillance and we also offer a vast range of online services to fulfill any of your investigative needs.

ACM Investigations LLC is a Lifetime Business Member of the PI/Alliance International Corp.(Worldwide organization of Private Investigators).

Contact us TODAY to get a FREE Consultation.

What we do

Workers' Comp Investigations 35%
Covert Surveillance 30%
Infidelity Surveillance 20%
Other 15%

What our customers say about us

Member of:

how can we help you?

Contact us at the ACM Investigations LLC office nearest to you or submit an inquiry online.

After dating a girl online for over 4 months, and having some plans to meet (I live in an other state), she was starting to ask for more and more money. I contacted acm investigations to verify her identity, and after a few days, got my answer. I was getting scammed. I’m glad I used them before wasting more money on her. Very friendly and professional investigator.

Yelp Reviews - ACM Investigations LLC
R. Q.
Milwaukee, WI, Yelp

looking for a first-class private investigation?