Integrated Design & Engineering Holdings Co.,Ltd. is a Tokyo-based company established in 1946, offering a broad spectrum of engineering consultation and power-related services both within Japan and globally. The firm provides comprehensive consulting for the design, development, and upkeep of essential social infrastructure, encompassing areas such as river and water resources, transportation networks (roads, ports, airports, railways), urban water environments, and regional planning. Their expertise also extends to disaster recovery, geo-environmental management, defense infrastructure projects, and support for satellite intelligence centers. Furthermore, the company is deeply involved in urban and spatial development, covering community planning, architectural design, environmental initiatives, urban revitalization, structural engineering, disaster preparedness, surveying, landscape design, water supply and sewerage systems, and compensation services. In the energy sector, they undertake research, development, design, construction, management, operation, and support for power generation and energy management systems. This includes solutions for electricity storage, renewable energy aggregation, hydropower operation and maintenance, equipment manufacturing, and specialized mechanical, electrical, and information technology consulting.