Mori Building Company

Mori Building Company, Limited (森ビル株式会社, Mori Biru kabushiki gaisha) is a Japanese family-owned property management firm. As of 2015, its president and CEO is Shingo Tsuji. Its headquarters are in the Roppongi Hills Mori Tower in Roppongi, Minato, Tokyo. Mori Building has been managing office building leases since 1955. Its focus has been in Minato, Tokyo. As of 2011, it manages 107 office facilities in Japan and China, with a total of 1,160,000 m2 (12,500,000 sq ft) of space. source: https://en.wikipedia.org/wiki/Mori_Building_Company