Feel like selling wire harnesses? Got a hankering to start distributing cable assemblies? It couldn't hurt to give Nortech Systems a call. The company offers outsourced manufacturing to a variety of industries, such as aerospace, automotive, medical, and military contracting. Nortech manufactures cables, wire harnesses, printed circuit boards, electronic subassemblies, and components. General Electric is its largest customer, accounting for 27% of sales (specifically GE Healthcare -- 19% of sales -- and GE Transportation -- 8%); other customers have included Kodak, Northrop Grumman, Raytheon, and SPX. Nortech gets nearly all of its sales in the US.