| OTC Markets: HEII
HEI, Inc. is an electronic manufacturing services company and full service contract manufacturer providing prototype and mid volume offerings in microelectronic assembly, medical device manufacturing and ceramic, flex & rigid-flex substrates. The company primary markets are medical, telecommunications, industrial, aerospace and defense. It support customers products from initial product development and design through transitional and full-scale serial manufacturing to worldwide distribution and aftermarket support. The company was founded in 1968 and is headquartered in Victoria, MN.