Turnkey Contract Manufacturer in business since 1967 - Printed Circuit Board assembly, Electronic assemblies, Cable and Harness assembly, Electromechanical Consoles and Panels. Prototype to production quantities. Complete Supply Chain Management to provide material traceability. Assembly personnel trained to IPC 610, IPC 620 and J-STD 001. Some of the markets we work in are: Aerospace, Industrial Equipment, Nuclear Industry, Military, Medical Equipment, Test Instrumentation, Telecommunications. At SEI we strive to meet our customer’s quality requirements, deliver product on time at a competitive price.