Investigation & Executive Security Professionals


Our Services

Our highly skilled and experienced investigators and security experts are capable of meeting a wide variety of client needs, all while providing ethical, legal surveillance and witness statements by experienced professionals.

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Executive Protection

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

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High Threat Security

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

Missing Persons Investigations

Our expert civil and criminal investigators help you gather information and solve legal issues.

Vector shapes of Minnesota neighboring Wisconsin

Serving Minnesota
& Wisconsin Since 1995

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