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Since 1986, we have focused on creating office interiors for major companies around the Minato-ku area of Tokyo with the goal of creating a comfortable office environment.


Customer satisfaction is the highest priority of our company, along with the partnership with contractors.  Communication with excellent partners capable of quick, safe construction is an essential part of creating high-quality offices.  We believe high-level quality in construction that pursues precision to one-tenth of a millimeter and thorough safety management come from the trust that we develop through everyday work.


We were able to accumulate more than 20 years of experience by satisfying customers and earning their trust.  All FOUR-S employees continuously polish the essential senses for creating excellent spaces by attending overseas inspections and study sessions, without remaining satisfied with current accomplishments.  Based on the view of future of interior decoration, we continuously explore ways to create an environmentally viable office by reducing waste and research on environmentally friendly next-generation construction materials. 


Representative director and president
Shinichi Yokota

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