Thomas F. Leahy

HEI, Inc. was 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 firm's primary markets were 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 was headquartered in Victoria, MN.

The Group's principal activities are to designs, manufactures and markets outdoor recreation products for the sport fishing and hunting markets and other consumer and industrial products. It has also adapted its outdoor recreation products and core technologies for sale into certain industrial markets. The Group operates in only one segment. It also manufactures, distributes and markets a family of products called underwater viewing systems that are sold under the trade name Aqua-Vu.