Chiyoda Corporation, founded in 1948, is a global engineering company based in Yokohama, Japan. It specializes in integrated engineering services for the energy sector, including oil, gas, petrochemical, chemical, pharmaceutical, and environmental industries. The company is dedicated to enriching society through engineering value and operates multiple offices worldwide, including locations in Abu Dhabi, Doha, and Milan.

Chiyoda provides a range of Engineering, Procurement, and Construction (EPC) services, such as consulting, engineering design, procurement, construction management, and facility maintenance. The company has a strong track record in constructing large-scale industrial plants, including oil refineries and LNG plants, with notable projects in Saudi Arabia, Qatar, and Russia. Chiyoda serves major energy companies and governments, reflecting its extensive customer base in the energy and chemical sectors. The company is also recognized for its commitment to corporate social responsibility and sustainable development.