Professional, Discreet and Confidential

Licensed Private Investigators

Licensed Private Security Agency

Experience Matters

Sentry Security and Investigations is celebrating 20 years in 2016.  For 20 years our company has provided professional mobile patrol and posted guard services to clients across the Dakotas and Minnesota.  Our clients range from individuals, small businesses to large international companies.  Trust your security needs to the professionals who have the experience to give you peace of mind.


 Whether you are looking for an investigator or a security consulation we are here to serve you.  Schedule a confidental consultation today.

Personal & Resourceful

At Sentry Security and Investigations, our services are provided by skilled professional investigators.

Count on our investigation team for the resources and support to bring your investigation to a close.

Types of Services

  • Traditional Investigations
  • Financial Investigations
  • Computer Forensics
  • Security Consultants