Prem Magnetics was founded in 1972 by W.T. Peterson and Frank Prem, as a division of Prem Enterprises, a machine shop. In 1979, Prem Magnetics became a separate Illinois corporation owned by Mr. Liston and Mr. Peterson. After several more years of success, Mr. Peterson retired in 1984, and Mr. Liston became President of the company. As a multi-generation family-owned transformer manufacturer, company culture and family values are very important to us. At our Johnsburg, Illinois headquarters, over 25 employees focus on office operations, complex part and small quantity production, as well as warehousing and shipping of finished products. Our Mexican facility is the workplace of over 30 employees, and produces high-volume orders.