West Holdings Corporation engages in the renewable energy business. It is involved in the installation of residential and industrial solar power generation systems; ground-based and roof-based installations for factories; construction and sales of public and industrial photovoltaic power generation systems; solar power generation and sales activities; management and maintenance business for photovoltaic power generation systems and related equipment; and energy saving services. The company was founded in 1981 and is headquartered in Tokyo, Japan.