Ishii Foundation will continue to contribute to the creation of a prosperous and secure city-building nation by advocating foundation work with a strong awareness of safety, economy, and environmental protection . Creating a safe home from the ground You can entrust the construction in any environment with various construction methods . You can centralize the steel material management work and leave it to us. Our company information that advocates foundation work with an emphasis on safety, economy, and environmental protection Click here for inquiries regarding foundation work and steel leasing What's New 2015.7.15 The address has changed due to the change of address. 1162-37 Shinei-cho, Soka-shi → 4-1162-37 Shinei, Soka-shi, Saitama 2012.11.02 An explanation video of some construction methods has been added. 2012.12.17 Added information page on ground and foundation. HOME Foundation work department Steel leasing business Company Profile Contact Us site map Copyright c 2011 Ishiikisokouji Co., Ltd. All Rights Reserved.