Kodensha Co Ltd is a specialized company of electrical equipment construction. It has diversified its operations into following segments. Extension business focuses on design and construction of receiving and transforming power generation, monitoring and control, disaster prevention and crime prevention equipment. The Power Transmission business is engaged in the construction of transmission lines of electric power companies. Information and Communication business focuses on design support and construction of in-house information communication network system. Plant Engineering business is involved in the various power plants and substations facility construction. The company's sales business is engaged in general-purpose electrical equipment.