IHI Corporation

Machinery ManufacturingTokio, Japan1001-5000 Employees

IHI Corporation is a Tokyo-based machinery and engineering company with a history spanning more than 170 years. It organizes its business into four sectors—Resources, Energy & Environment; Social Infrastructure; Industrial Systems & General-Purpose Machinery; and Aero-Engine, Space & Defense—building on shipbuilding-era manufacturing capabilities to deliver advanced solutions. The IHI Group operates through a global network of more than 190 companies and maintains a sizable workforce worldwide. Guided by a management philosophy that emphasizes contributing to society through technology and that values people as the group’s most important asset, it seeks to work alongside customers and stakeholders. The company's diversified footprint spans energy, infrastructure, and aerospace markets.

In 2026, IHI engaged in notable collaborations to advance energy and space initiatives, including a memorandum of understanding with X-energy to expand the U.S.-Japan supply chain for Xe-100 advanced small modular reactors.

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