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COMPANY PROFILE

Company Profile

Company Name Sumiju Yokosuka Kougyo Co., Ltd.
Established April 1, 1989
Representative Atsushi Ishikawa, President and CEO
Headquarters location 19 Natsushima-cho, Yokosuka-shi, Kanagawa, 237-8555
Inside the Yokosuka Works of Sumitomo Heavy Industries, Ltd.
TEL:046-869-1707 / FAX:046-869-1648
Oppama Office Same as headquarters
Yokosuka Base Office Armex Building 3F/4F, 1-18-1 Hon-cho, Yokosuka-shi, Kanagawa, 238-0041
TEL:046-821-1603 / FAX:046-821-1605
Okinawa Office 4-19-1 Miyazato, Okinawa, 904-2165, Japan
TEL:098-989-5472 / FAX:098-989-5473
Business description 1. Shipbuilding and repairs
2. Design, manufacturing, production, and repair of bridges and marine structures
3. Construction industry
4. Longshore work, coastal shipping
5. Scrap iron, non-ferrous scrap collection and sales
6. Industrial waste collection
7. Building, machinery, and various facility maintenance, repairs, and dismantling
8. Laborer dispatch service
Government approval and licenses Special Construction Business - Minister of Land, Infrastructure, Transport and Tourism Authorization (Special-4) No. 26763

Civil engineering, construction, scaffolding, painting, waterworks, electrical, piping, etc.

General Construction Business - Minister of Land, Infrastructure, Transport and Tourism Authorization (General-4) No. 26763

Machinery, instruments, and equipment

Harbor transportation business (longshore business)
Laborer dispatch business Ha 14-301479
Capital ¥80 million
Stockholders Sumitomo Heavy Industries Marine & Engineering Co., Ltd.(100% owned)
Number of employees 168 (as of January 1, 2024)
Sales ¥5.3 billion (FY2023 results)
Correspondent financial institution Sumitomo Mitsui Banking Corporation - Tokyo Sales Division
Bank of Yokohama - Oppama Branch
TRI Bank Kanagawa - Oppama Branch
Bank of the Ryukyus - Koza Branch
Main clients Various government agencies
  • Port and Airport Research Institute
  • JMSDF Repair and Supply Facility YOKOSUKA
  • JMSDF Headquarters YOKOSUKA District
  • Naval Facilities Engineering Command (NAVFAC) Far East
  • Marine Corps Community Services
  • US Air Force 718th Civil Engineer Squadron
  • US Army Corps of Engineers
  • National Defense Academy
  • Yokosuka City Hall
  • JAMSTEC
Private enterprises, etc.
  • Kajima Corporation
  • Oohama Tekko Co., Ltd.
  • Japan Transport Engineering Company
  • Yokogawa NS Engineering Corp.
  • HikariMakoto Industry Co., Ltd.
  • Shin Nippon Machinery Co., Ltd.
  • Sugita Industries Co., Ltd.
  • Sumitomo Heavy Industries, Ltd.
  • Sumitomo Heavy Industries Marine & Engineering Co., Ltd.
  • Zeniya Marine Service Co.,Ltd.
  • Taisei Corporation
  • Tokai Kisen Co., Ltd.
  • TOKYU CONSTRUCTION CO., LTD.
  • Tohoku Heavy Construction Co., Ltd.
  • Nippon Marine Enterprises,Ltd.
  • NIPPON EXPRESS CO., LTD.
  • Honma Kogyo Co., Ltd.