Kanda Tsushinki Co., Ltd.

Kandenko Co Ltd is a Japanese infrastructure and engineering company. The company organises itself into two segments: engineering and other. The engineering segment, which contributes nearly all the company's revenue, conducts electric engineering work for building construction and renovation, installs and maintains telecommunication systems, constructs and maintains power distribution lines and facilities, inspects and maintains nuclear power plants, and conducts civil engineering work. The company derives the vast majority of revenue domestically.

Provider of building services and equipment based in Tokyo, Japan. The company offers architectural design and engineering, building construction, building maintenance and repair services, plumbing and sanitary systems, fire protection systems and electrical systems.

KDDI is providing telecommunication services for finance, energy, entertainment, and education sectors.