Takenaka (株式会社 竹中工務店) is a construction company offering architecture, engineering, and construction services. It undertakes, designs, and supervises architectural and civil engineering works. The company also engages in studies, research, surveys, planning, evaluation, diagnosis, and other engineering and management services for construction, regional and urban development, ocean and space development, energy supply, and environmental preservation, as well as land preparation and housing construction. It offers sales and purchasing, leasing, brokerage, maintenance, management, and appraisal of real estate, as well as real estate investment management services.