Berntsen International, Inc. is a manufacturer and supplier of survey markers, survey monuments, utility markers, and related accessories. Founded in 1972 as Berntsen Cast Products, by Phillip Peterson and Peter Berntsen, we have been Marking The Boundaries Of The Nations for over 30 years. Today Berntsen has a product line of more than 100 markers and monuments including specialized, one-of-a-kind markers that are custom-made for a customer's specific project. Berntsen has received multiple patents and has been honored twice by the governor of the state of Wisconsin for new product innovation.