Lakeside Investigations, LLC
- Specializing in cheating spouse surveillance, background investigations, attorney support services, and process service. Located in Fraser.
- http://www.lakesideinvestigations.org/

PSS Private Investigations
- Full service, licensed detective agency located in Eastpointe, MI.
- http://www.pss-investigations.com/

VISTA Inc.
- Private investigation agency based in Southfield.
- http://www.vistapi.com/

Pursuit Investigations Inc.
- Insurance fraud specialists, servicing southeastern Michigan since 1993.
- http://www.pursuitpi.com/

Advanced Surveillance Group, Inc.
- Full service investigative agency operating statewide.
- http://www.asginvestigations.com