Hitachi Vantara Achieves No. 1 Market Share in Japan's 2025 External Block Storage Market by Revenue

Hitachi Vantara, a subsidiary of Hitachi, Ltd., announced today that it has achieved the number one ranking in vendor revenue in the enterprise external block storage systems market in Japan for the full year of 2025 (January-December 2025), according to the 'IDC Worldwide Quarterly Enterprise Storage Systems Tracker Q4 2025.'

For over 50 years, the company has supported systems that cannot afford to fail, such as those in finance, energy, and railways, continuously protecting customers' most critical asset: data. The company believes its number one market share was earned by consistently meeting stringent customer reliability requirements through high-quality manufacturing technology, a comprehensive maintenance and support system, and advanced security features that protect data from ransomware. Going forward, Hitachi Vantara will continue to provide highly reliable data platforms for mission-critical systems supporting social infrastructure, while also offering them as the data foundation for 'Hitachi iQ,' an AI infrastructure solution expanded in March 2026 to accelerate the production deployment of agent AI, and 'HMAX by Hitachi,' a next-generation solution suite that innovates social infrastructure with AI across a wide range of fields such as mobility, power, and industry.

- Customer Comments

Mr. Yasuzi Sudo, General Manager, Core Banking IT Division, Mizuho Bank, Ltd.:
"Hitachi Vantara's storage meets the strict security and high availability requirements of the financial industry and serves as the core of our IT infrastructure, where we can confidently entrust our bank's critical data assets. The high reliability of the products and a complete support system ensure stable operations, contributing to the provision of uninterrupted financial services to our customers 24/7, 365 days a year."

Mr. Hitoshi Kamakura, Executive Officer, Head of Digital Innovation Headquarters, The Chugoku Electric Power Co., Inc.:
"Hitachi Vantara's storage has high reliability in terms of both security and availability, providing a stable storage environment. As a foundation supporting our company's mission-critical system operations that underpin social infrastructure, it plays a vital role in ensuring business continuity."

Akinobu Shimada, CEO of Hitachi Vantara and President and Representative Director of Hitachi Vantara Co., Ltd., stated: "Achieving the number one revenue share in Japan's external block storage market is a testament to the deep trust our customers place in us as a partner for their critical workloads and the market's recognition of the high quality we have cultivated over the years. With the increasing importance of economic security, strengthening regulatory compliance, and the emerging risk of cyber-attacks, enhancing data sovereignty has become even more critical. We are globally deploying 'Hitachi Virtual Storage Platform One (VSP One),' a highly reliable data platform that is safe and environmentally conscious while avoiding operational complexity in on-premises and hybrid cloud environments. We will respond swiftly to market needs changing with the AI revolution and strongly support our customers' DX/AX promotion through innovative data infrastructure technology and services."

- Main Product Lineup

Hitachi Vantara offers the following product lineup to meet diverse customer data utilization needs:

- High-End Storage 'VSP One Block High End': Launched globally in January 2026. Used for storing sensitive information in large-scale enterprise core business systems and customer management databases, it provides a robust data foundation with outstanding performance and scalability to support AI-era workload demands, along with reliable data protection against ransomware attacks and resilience to ensure business continuity during disasters.

- Mid-Range Storage 'VSP One 2U Block Appliance': Widely used for small to medium-sized business systems and departmental servers. It features a compact 2U chassis with high-efficiency data compression and power-saving functions, contributing to environmental load reduction throughout the product lifecycle via the use of recycled materials for the bezel and long-term product support.