Our Services


Committed to Collecting Effective Legal Evidence

For over 25 years, APS has been protecting the assets and reducing the liability of clients ranging from small businesses to large corporations. Located in the international port city of Duluth, Minnesota, Applied Professional Services (APS) is a fully licensed and bonded investigative consulting and security firm serving Minnesota and Wisconsin.

Wall of pinned strings connecting photographs for investigation

Missing Persons Investigations

Professional investigations of missing persons for families and loved ones.

Civil and Criminal Investigations

Expert investigators to help you gather info and solve legal issues.

Process Service

From motion hearings to lawsuits, with affidavit and rush service available.

Executive security icon

Executive Protection

Professional and discreet protection is a hallmark of executive security with APS.

High threat security icon

High Threat Security

APS provides security for high-threat targets including estates and offices, special events, and historic art.