Obayashi Corporation

Obayashi Corporation

Founded in 1892, Obayashi Corporation is a Japanese general contractor headquartered in Tokyo. The firm has built major infrastructure, commercial, and residential projects both domestically and globally. Obayashi operates across five business segments: domestic building construction, domestic civil engineering, overseas construction, engineering, and development. In civil engineering, it specializes in tunnels, bridges, dams, and railways. The firm also pursues green energy projects, including floating offshore wind and green hydrogen supply chains. Notable completed projects include the GLION ARENA KOBE (2026), the Grand Green Osaka tower (2024), and the Mandai Bird Park in Singapore (2022). Geographically, Obayashi works in Japan, Southeast Asia, North America, and Oceania. The firm is publicly traded, with subsidiaries in North America, Southeast Asia, and Oceania. As of May 2026, Obayashi had been selected for the Dow Jones Best-in-Class Asia Pacific Index. It operates philanthropic and environmental programs, including a biodiversity site named "Shimoda no Mori." In May 2026, Obayashi announced participation in a highway concession project in Jakarta, Indonesia, and began a demonstration of in-motion wireless power transfer on a Japanese expressway. Obayashi's structural distinction lies in its broad in-house engineering capabilities, spanning tunnelling, floating offshore wind, and hydrogen infrastructure, which differentiate it from pure construction peers. The firm also pursues public-private partnerships (PPPs) and concessions as a growth vector.