Bourns, Inc. is an American electronics company that develops, manufactures and supplies electronic components for a variety of industries including automotive, industrial, instrumentation, medical electronics, consumer equipment and portable electronics. Established in Altadena, California in 1947 by Marlan and Rosemary Bourns, graduates of the University of Michigan, the company was founded to develop and sell electronic components and sensors to the aerospace industry. Bourns has 15 manufacturing facilities around the world and has continued growing through the development of new products and technologies as well as through acquisitions. The company has approximately 9000 employees worldwide.