DDi Corp. and its subsidiaries provide printed circuit board engineering and manufacturing services primarily in North America and Asia. It engages in engineering and fabricating multi-layer printed circuit boards. The company serves customers in various market sectors, including communications, computing, military/aerospace, industrial electronics, instrumentation, medical, and high-durability commercial markets. It markets its development and manufacturing services through an internal sales force and manufacturer's representatives. The company was founded in 1978 and is headquartered in Anaheim, California.