NTT DOCOMO BUSINESS, also known as NTT Communications, is a privately owned company headquartered in Japan. Founded in 1999, it operates as a subsidiary of NTT Group, employing approximately 2,170 individuals. The company specializes in IT services and IT consulting, focusing on B2B telecommunications services. It also has a subsidiary, OCN Mobile One.
On July 9, 2026, NTT docomo Business, in collaboration with Toshiba and NEC, began construction of a 600-kilometer quantum cryptographic communication network directly linking Tokyo, Nagoya, and Osaka. This initiative, part of a larger project spearheaded by the Ministry of Internal Affairs and Communications (MIC) and the National Institute of Information and Communications Technology (NICT), represents an advance in the range of practical Quantum Key Distribution (QKD) technology demonstrations. Previously, NTT Data and NTT Docomo Business announced on July 8 that they will launch a cyber risk response service using frontier AI on July 31. This service aims to help corporate and infrastructure customers manage vulnerabilities from detection through remediation and ongoing operations. The companies clarified on July 7 that this AI-based cyber risk management service is designed to assist organizations in identifying, prioritizing, and fixing security vulnerabilities. It targets a persistent pain point for enterprise security leaders by converting raw vulnerability data into measurable remediation plans without overwhelming internal teams and will primarily serve critical social infrastructure companies, such as banks and electric power companies, to enhance their defense against sophisticated cyberattacks.
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NTT DOCOMO BUSINESS offers products in the media tech industry. NTT DOCOMO BUSINESS's product portfolio comprises of connectivity and distribution services.
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