NTT

Nippon Telegraph and Telephone Corporation (NTT) is Japan's largest telecommunications company and one of the world's largest by revenue, reporting approximately $120 billion in revenue in fiscal 2025. The NTT Group encompasses NTT Docomo (Japan's largest mobile operator), NTT Data (global IT services), NTT Communications (international network and cloud), and NTT East/West (fixed broadband infrastructure).\n\nNTT Data is a major global IT services and consulting firm operating in over 50 countries, competing with Accenture and Fujitsu on enterprise digital transformation engagements. NTT has also developed its own photonics-electronics convergence technology, called IOWN (Innovative Optical and Wireless Network), which aims to replace conventional electronic networking with optical computing to reduce latency and energy consumption by several orders of magnitude.\n\nNTT Docomo serves over 90 million mobile subscribers in Japan and is pioneering 5G standalone deployments for industrial use cases including smart factories and autonomous vehicles. NTT's global data center footprint spans more than 20 countries, with significant presence in the Americas, Europe, and Asia-Pacific, making it a leading colocation and cloud-interconnect provider for enterprises.