Obayashi Corp is a Japan-based company mainly engaged in the construction and real estate businesses. It has five business segments. The Domestic Construction segment is engaged in the acceptance and construction of construction work, interior construction, sales and rental of construction materials and equipment, and comprehensive building management. The Overseas Construction segment is engaged in the construction work in North America and Southeast Asia. The Domestic Civil Engineering segment is engaged in the acceptance and construction of civil engineering work. The Overseas Civil Engineering segment is engaged in the civil engineering work in North America and Southeast Asia. The Real Estate segment is engaged in the buying and selling and leasing of real estate, and development business. It is also engaged in the private finance initiative (PFI) business, renewable energy business, information and communication technology (ICT) related business and financial business.