Takawaki Corporation

Established Takawaki-gumi Ltd. in Nihonbashi, Chuo-ku, Tokyo, with capital of ¥400,000

Reorganized as Takawaki Foundation Construction Co., Ltd.; increased capital to ¥1 million; relocated the head office and Tokyo sales office to Higashi-Ueno, Taito-ku, Tokyo

Opened the Saitama sales office in Kitamoto, Saitama Prefecture; increased capital to ¥3 million

Increased capital to ¥10 million

Increased capital to ¥21 million

Increased capital to ¥31 million

Increased capital to ¥45 million

Opened the Sano sales office in Sano, Tochigi Prefecture

Increased capital to ¥98.32 million

Increased capital to ¥428.32 million

Increased capital to ¥443.32 million

Developed the TBS Method for steel pipe piles using inner excavation and an enlarged grouted base (building construction) and obtained approval from the Minister of Construction

Developed the TBS Method for steel pipe piles using inner excavation and an enlarged grouted base (civil engineering) and obtained technical review certification from the Construction Technology Research Center (now the Japan Institute of Country-ology and Engineering)

Participated in providing technical guidance for levee reinforcement work in China following the Yangtze River disaster

Received its first contract from Saitama Prefecture for the demolition of the Ogawa (Kawamukai) standby staff quarters and other facilities

Received its first contract from the Kanto Regional Development Bureau for the installation of a sand-level gauge on the Kinu River

Steel pipe pile / mid-boring enlarged-base grouting method: Improved the TBS method (civil engineering) and obtained technical review certification from the Japan Construction Technology Center (currently the Japan Construction Technology Center) confirming that it has bearing capacity equal to or greater than that of mid-bored piles specified in the Road Bridge Specifications (March 2002).

Received an order from Saitama Prefecture for the demolition of the Kawaguchi Kisoro Teachers' Housing.

Our company and others acquired shares in Yorii Compost Co., Ltd. (Yorii Town, Saitama Prefecture), which produces high-quality compost from industrial waste such as sludge and waste oil, and became shareholders.

Steel pipe pile tip-enlarged base grouting method: Jointly developed the TBSR method with Sumitomo Metal Industries, Ltd. (now Nippon Steel Corporation) and obtained certification from the Minister of Land, Infrastructure, Transport and Tourism.

Received awards from the Ministry of Land, Infrastructure, Transport and Tourism as an "Outstanding Subcontractor" and for an "Outstanding Subcontractor Technician."

Patent No. 3954465, "Enlarged-Diameter Drilling Device and Pipe Pile Construction Method," registered.

Received an award from the Director of the Takasaki River and National Highway Office of the Ministry of Land, Infrastructure, Transport and Tourism as an "Outstanding Subcontractor and Outstanding Subcontractor Technician for FY 2007."

Received awards from the Ministry of Land, Infrastructure, Transport and Tourism as an "Outstanding Subcontractor" and for an "Outstanding Subcontractor Technician."

Obtained a license from the Governor of Saitama Prefecture as a real estate transaction business operator under the Real Estate Brokerage Act, license no. (1)021568.

Received an award from the Director of the Tone River Upper Reaches River Office of the Ministry of Land, Infrastructure, Transport and Tourism as an "Outstanding Subcontractor and Outstanding Subcontractor Technician for FY 2009."

For the pile materials used in the TBSR method, applied to add the use of precast concrete piles jointly developed by four companies—Sumitomo Metal Industries, Ltd. (now Nippon Steel Corporation), Takawaki Foundation Engineering Co., Ltd., Japan Hume Pipe Co., Ltd., and Nippon High Pressure Concrete Co., Ltd.—and obtained certification from the Minister of Land, Infrastructure, Transport and Tourism.

Assisted with technical guidance on construction associated with the installation of flood-protection walls following the 2011 floods in the Kingdom of Thailand.

Installed a solar power generation system and began selling electricity.

Opened the Karuizawa Training Center, "Jishukan."

Opened the Konosu Equipment Center (with a solar power generation system installed).

Obtained a construction business license for demolition work.

Relocated the Omiya Administrative Center to Urawa Ward (renamed the Urawa Administrative Center).

Received a letter of appreciation from the Chairperson of the Saitama Council of Social Welfare for sponsoring the Saitama Shimbun “Handmade Mask Circle Project.”

Received an award as an "Outstanding Partner Company" from the Tokyo Metropolitan Government's Bureau of Port and Harbor.

Received a certificate of commendation from the Director General of the Tokyo Metropolitan Government Bureau of Port and Harbor for being recognized as an outstanding company in connection with the FY2017 Nankai Bridge Removal Work.

Received awards from the Ministry of Land, Infrastructure, Transport and Tourism as an "Outstanding Subcontractor" and for an "Outstanding Subcontractor Technician."

Received the highest rating of four stars in every category under the Ministry of Land, Infrastructure, Transport and Tourism’s “Visualization Evaluation System for the Construction Capabilities, etc. of Specialized Construction Companies.”

Received the highest rating of four stars in every category under the Ministry of Land, Infrastructure, Transport and Tourism’s “Visualization Evaluation System for the Construction Capabilities, etc. of Specialized Construction Companies.”

Received awards from the Ministry of Land, Infrastructure, Transport and Tourism as an "Outstanding Subcontractor" and for an "Outstanding Subcontractor Technician."

Received a certificate of commendation from the Head of the Ministry of Land, Infrastructure, Transport and Tourism’s Kita-Shuto National Highway Office for the successful completion of the National Route 4 East Saitama Road (Dedicated Section), Yashio Section Improvement Work No. 1, carried out in 2023.

Received a letter of appreciation from the Head of the Saitama Provincial Cooperation Office of the Japan Self-Defense Forces for promoting the reemployment of former Self-Defense Forces personnel.