Profile: Sienna Corp. provides electronic manufacturing services. Our manufacturing services include PCB assemblies, cable assemblies, machined parts, sheet metal enclosures, turnkey products and total system integration. Design engineering services inlclude design for manufacturing, design for test, design for assembly and design for procurement. We offer electromechanical assembly, PC boards assemblies & back plane assemblies, fiber optic assembly, sheet metal, system integration and system & component testing services.