Nippon Koei

Act with integrity and contribute to society through technology and engineering.

Providing a variety of services to support a stable energy supply

BusinessOur Business

Implement projects that support the infrastructure of daily life, such as the development and maintenance of infrastructure

Using civil engineering, architecture, and other specialized technologies, we provide national, regional, and urban development projects, studies, technical proposals, surveys, environmental assessments, design, construction supervision, and maintenance management services to national and local governments, overseas government agencies, private companies, and other business entities.


We are committed to developing world-leading technologies to meet the needs of society and our customers.

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