Densan Co., Ltd. operates as an information service company in Japan. The company operates in two segments, Public Sector and Industrial Field. The Public Sector segment engages in the development and sale of package systems, operation support, and machines; and provision of various services, such as equipment sales and information processing. It primarily serves local public and related organizations. The Industrial Field segment provides various services, including software development, equipment sales, and information processing primarily for private companies and medical/welfare institutions. It also provides Internet connection services for general individuals. The company also engages in the information processing and provision, information communication and storage, and operation/monitoring service businesses; development, sale, and rental and maintenance of software; and planning, design, development, and maintenance of information systems. In addition, it also plans, researches, develops, sells, rents, installs, and maintains information and communication equipment/information processing equipment and its peripherals, and operational software, as well as sells office consumables; manages and operates information systems, and outsources related operations; and rents space in the building. Further, the company engages in the installation work and maintenance of communication lines and electrical equipment; planning, development, and sale of digital contents comprising text, audio, still images, videos, etc.; and collection agency, worker dispatch, and parking lot rental businesses. Additionally, it provides education and guidance, and information system consulting and publishing services. The company was incorporated in 1966 and is headquartered in Nagano, Japan.