nms Holdings Corp. engages in the management of its group of companies that are involved in human resource solutions, electronics manufacturing, and power supply business. It operates through the following segments: Human Resource Solution (HS), Electronics Manufacturing Service (EMS), and Power Supply (PS). The HS segment handles worker dispatch for manufacturing and contract engineering services. It also offers logistics and repair services. The EMS segment provides mounting and assembly services for electronic device boards in Japan and overseas. The PS segment designs, develops, and sells power source products and magnet rolls. The company was founded in September 1985 and is headquartered in Tokyo, Japan.