Nikken Sekkei is one of the world’s largest architectural and engineering design firms, Nikken Sekkei employs over 2,770 professional staff in six group companies offering comprehensive design, engineering, management, consulting and R&D services. Since its establishment in 1900 the company's portfolio consists of over 25,000 projects in 250 cities, in 50 countries. These projects cover a broad range of services including master plans and mixed-use developments, transportation (airports and railway stations), offices, R&D, education and culture, production and logistics, healthcare and welfare, commerce, hotels, and residential complexes.