Sierra Electrotek was founded in 1968 and is located in a state of the art 58,000 sq. ft. facility in Oak Creek, Wisconsin just minutes away from Milwaukee’s international airport. We are a bare printed circuit board manufacturer focused on high reliability and high technology for commercial, aerospace and military markets. We supply rigid, flex and rigid-flex products as well as PTFE, Rogers 3000, 4000, 5000, and 6000 material sets.

Sierra Electrotek is AS9100, NADCAP and MIL-55110/31032 certified. We manufacture HDI microvia technology as well as high layer count controlled impedance up to 30 layers. Sierra Electrotek also has the capability to manufacture with heavy copper and build buried capacitance products. Our expertise includes high-reliability medical, military, and aerospace technologies.