- CEO
- Koichi Suzuki
- Full Time Employees
- 5,206
- Sector
- Communication Services
- Industry
- Telecommunications Services
- Address
- Iidabashi Grand Bloom Tokyo Japan 102-0071
- IPO Date
- Jun 8, 2017
- Business
- Internet Initiative Japan Inc is a leading Japanese internet service provider and comprehensive network solutions company founded in 1992 and headquartered in Tokyo, Japan. The company offers a broad portfolio of products and services including high-quality internet connectivity, WAN and network services such as software-defined networking (SDN), multi-cloud network integration, closed connection, internet VPN, remote access, wireless LAN, and leased lines; mobile communication services including multi-purpose SIM cards; cloud computing services encompassing private cloud, PaaS solutions, and integration with Microsoft 365 and AWS; security services including managed firewall, DDoS protection, managed IPS/IDS, security audits, and malware analysis; system integration; IT outsourcing; data center services including construction engineering; DX edge services; and domain name registration and management. IIJ operates a robust infrastructure with network operation centers in Japan and internationally in the U.S., U.K., Singapore, and Hong Kong. Recent major developments include a strategic acquisition of an 11.5% stake by Japanese telecommunications company KDDI, replacing NTT as the largest shareholder while continuing operational independence, and multiple partnerships such as the establishment of a joint venture with Sony Semiconductor Solutions Corporation to launch soil moisture sensors and irrigation navigation services for smart agriculture starting in April 2026. IIJ is also collaborating with Preferred Networks and Mitsubishi Corporation to offer cloud services featuring high-performance AI-oriented semiconductors from 2026, focusing on accelerating digital transformation in business IT environments. The company continues to enhance its service offerings with new multi-cloud services and has seen leadership changes with Yasuhiko Taniwaki appointed as representative director as of 2025. IIJ primarily serves high-end corporate clients and operates extensively across Japan and internationally with a focus on technology innovation in network and cloud services.