Ohba. 

Ohba Co., Ltd., established in 1922 and headquartered in Chiyoda, Japan, is a comprehensive consultancy specializing in urban development and infrastructure projects, operating both domestically and globally. The firm provides expert guidance on crafting attractive cities and supports property owners with land utilization and conversion strategies. Their services extend to the planning and design of essential infrastructure, such as transportation networks, hydraulic systems, and utility services, alongside offering technical support for their construction and ongoing management. Ohba also conducts environmental impact assessments, various geological and land contamination investigations, and detailed surveys of terrain. Furthermore, they offer advisory services on real estate transactions, inheritance tax, and property optimization, often integrating geographic information systems for sophisticated urban and environmental analyses. Their broad scope also includes developing solutions for a wide array of societal challenges.