NTT Software Corporation was founded in July 1985, when Nippon Telegraph and Telephone Corporation (NTT), the world's largest telecommunications company, was privatized. NTT Software started its business by carrying out design and the development of advanced and large-scale telecommunications technology by NTT Laboratories and, has developed its business in areas such as Internet technology, virtual space technology and packaged software. The company was certified for ISO9001 in February 1998 and garnered international recognition for a corporate commitment to quality assurance. NTT Software established its Tokyo Headquarters in December 1998 to strengthen sales efforts and improve communication.