BELLSYSTEM24 Holdings, Inc. engages in the formulation of group strategies, administers group companies, and handles distribution of the group's management resources. It operates through the Customer Relationship Management (CRM) and Others segments. The CRM segment offers services that use information technology (IT) such as web and social media services. The Others segment includes contract sales organization (CSO), which handles pharmaceutical sales; medical information service (MIS), which provides contact center services related to health; site management organization (SMO), which offers medical service support for clinical trial sites; sales of weather forecast contents through mobile and personal computer; and promotion of employment of people with disabilities. The company was founded in September 20, 1982 and is headquartered in Tokyo,Japan.