PI Directory – Private Investigators and Private Detectives in Wisconsin

Wisconsin Private Investigators
& Detective Agencies

Wisconsin PI Licensing Requirements

Baraboo Nielsen Detective Agency LLC: With service to Sauk, Dane, Columbia and surrounding Counties, we specialize in Criminal Defense Investigations, Process Service, Background Screening, Interview and Interrogations, and Skip Tracing. (608) 393-8033,

Milwaukee Ryan Adam Investigations, Wisconsin Private Investigators located in Delafield, Wisconsin. We handle private investigation cases across all of Lake Country, Southeastern Wisconsin and beyond.

City Not Listed Johnsen & Associates, Inc. Specializing in criminal defense, surveillance, family issues, personal injury and process service.
(715) 849-2404

Oconomowoc Oconomowoc Mapleton Investigations, LLC. Specializing in: Missing Persons, Loss Prevention, Personal Injury $ Medical Malpractice Investigations


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