Centered around Obayashi Corporation, one of Japan's largest general contractors, the Obayashi Group comprises 86 subsidiaries and 26 affiliated companies with a total of 13,000 employees and combined annual net sales of approximately ¥1,400 billion. The Group's activities are primarily in the construction and real estate businesses, and Group companies engage in a wide range of activities related to these two main fields.
Obayashi Corporation was founded in 1892 in Osaka by Yoshigoro Obayashi. After completing construction projects for the Osaka Port and the Fifth National Industrial Exhibition, in 1914 Obayashi Corporation went on to build Tokyo Central Station (present-day Tokyo Station), which enabled the Company to demonstrate its technological capabilities on the national stage. When the Great Kanto Earthquake struck Tokyo in 1923, Tokyo Station remained unharmed, winning the Company the great confidence of customers.