Taisei Corporation (大成建設株式会社) is one of the oldest and largest Japanese General Construction Contractors and a major International General Contractor. The main areas of business are building construction, civil engineering, and real estate development. Taisei Corporation's head office is in Shinjuku, Tokyo, Japan with overseas offices in Taiwan, Qatar, Malaysia, Indonesia, India, Pakistan, Vietnam, Thailand, Philippines, Myanmar, Sri Lanka, Egypt and Turkey.