Company name Sea & Sea Co., Ltd.
Location 54-5 Ariya Aza Lettersawa, Kosaka-cho, Kakaku-gun, Akita 017-0204
Telephone number 0186-29-2976
Fax number0186-29-3018
Established.December 21st, 2002
Representative Representative Director Toshiaki Asaishi
Officers Executive Vice President Yukio
Kiyoshi Fuji, Managing Director, Hiroaki Toki
Capital 21 million yen
Number of employees 43 men, 7 women, 50 in total
Description of business Steel structure construction business, machinery and equipment installation construction business, construction work business, tobi and earthwork business, earth work and woodworking business, pipe work business, design work of incidental incidental to the same, radio wave darkroom construction
Approval of construction industry, etc. Minister of Land, Infrastructure, Transport and Tourism Certification M Grade TFBM-193627
Class 1 Pressure Vessel Manufacturing Permit Autumn Arrival (-) No.
45 Akita Prefecture Bid Rating Machinery and Equipment Installation Work Class A Akita Prefecture Bid Rating Steel Structure Construction Class A

Akita Prefecture Bid Rating Building Work Class B
Civil Engineering, Architecture, Tobi Earthworks, Steel Structures, Electrical, Plumbing Works (Special-3) No. 81694
Machinery and Equipment Installation Work ( General-3) No. 81694
Registered as a Class 1 Architect Office Governor of Akita Prefecture No. 18-10A-0650
Main business partners Kosaka Smelting & Refining Co., Ltd., Akita Kogyo Co., Ltd., DOWA Techno-Enji Co., Ltd., Kawada Construction Co., Ltd., Hitachi Shipbuilding Co., Ltd., E&C Engineering Co., Ltd., Kawada Kogyo Co., Ltd., TDK Co., Ltd. Fuji Sassi Co., Ltd., Nippon Spindle Manufacturing Co., Ltd., Cottrell Industrial Co., Ltd., Shinko Environmental Solutions Co., Ltd., Riverlands Engineering Co., Ltd., Thanax Co., Ltd., Taiyo Nichiacid Co., Ltd., Tomoe Machinery Co., Ltd. Chichibu Sangyo Co., Ltd., Shinko Environmental Maintenance Co., Ltd., Kosakabashi Construction Co., Ltd., Yuatec Co., Ltd., Kakaku Regional Administrative Association, Kosaka Town, Kakaku Regional Promotion Bureau, Toshiba Energy Systems Co., Ltd., Kosaka Construction Co., Ltd., Takuma Co., Ltd., Mitsubishi Electric Corporation Kamakura Manufacturing Co., Ltd., Miquita Service Co., Ltd., Ebara Corporation


April 1, 1953Established Kiyoto Iron Works Co., Ltd. Kosaka Smelter construction and repair work
April 1, 1960Started operation as Tatagumi Iron works Division Co., Ltd.
July 23, 1993The Iron works division of Tawada-gumi Co., Ltd. and Seito Iron Works Co., Ltd. merged (the merger resulted in the organization of the Tadagumi Iron Works Division)
April 1, 1995Changed the company name from Tadagumi Co., Ltd. to Tanax Co., Ltd.
December 21st, 2002Established Sea & Sea Co., Ltd.
February 1st, 2003Transferred 20 employees and employees from Tanax Steel Co., Ltd.
January 31st, 2004Acquired all factory machinery and equipment from Tanax
February 11th, 2007Tokyo Branch Office established
February 1st, 2008Production system from the original plate by the introduction of plasma cutting machine equipment
February 1st, 2009 Company name changed to Sea & Sea Co., Ltd.
November 2011Toshiba Co., Ltd. Quality Certification at Keihin Plant
April 17th, 2012Capital increased to 21 million yen.
June 13th, 2012The soil, construction, electric, tube, and steel construction business are specified in the construction industry.
November 2014Toshiba Co., Ltd. Updated Quality Certification at Keihin Plant
December 2017Introduction of 500t press
May 2018Heisei 30 Pedestrian First Model Office
December 2018 Plasma cutting machine update (for thickness 50mm)