About Us

We are a company focused on plant piping design.
Established since 1988, we have been involved with a wide variety of designing plants, both domestic & overseas.

Our philosophy is to promote the execution of business of the entire project centered in piping design, which is the backbone of plant design. Our motto is to create a system for business execution with a sense of unity with our customers.
In addition, in order to respond to the rapidly changing environment, we work to improve the technical capabilities of our core engineers & improve the health of our employees.

We will continue to pursue & contribute to the improvement of technical capabilities, quality control & cost competitiveness by collaborating with partner companies & making full use of the latest technologies.

Official company name Kyowa Engineering Corporation.
Representative Representative Director: Masumi Naito
Head office location 7F Yokohama Aioicho Building, 104-2, Aioicho 6-chome, Naka-Ku, Yokohama, Kanagawa, 231-0012, Japan
TEL. 045-264-8466
FAX. 045-264-8520
Branches/Offices Tokyo branch
31-13, Kamata 4-chome, Ota-ku, Tokyo, 144-0052, Japan
Type of business Engineering services for various plants
Description Plant piping design
Basic planning
Basic Design
Detail Design
Lumpsum contracting & dispatch of engineers for the tasks above.
Establishment 1988/10/8
Capital 10 million
Employees 45 (As of October 2021)
Main Clients
(in alphabetical order)
JGC Holdings Corporation
JGC Global Corporation
JGC Corporation
Chiyoda Corporation
Chiyoda Kosho Co., Ltd.
Toyo Engineering Corporation
Mitsubishi Heavy Industries Engineering, Ltd.
Mitsubishi Heavy Industries Transportation & Construction Engineering Co., Ltd.
MHI Power Engineering Co., Ltd
Mitsubishi Power Industries Co., Ltd
JFE Engineering Corporation
JFE Project One Co., Ltd
The Nisshin Oillio Group, Ltd.
Mitsubishi Heavy Industries, Ltd.
Yamashita Seisakusho Co., Ltd
Raiznext Corporation
Financial Institutions Mizuho Bank,Ltd.  Kamiooka branch
Mitsui Sumitomo Banking Corporation  Kamiooka branch
MUFJ Bank, Ltd.  Yokohama branch
Kanagawa Bank, Ltd.  Kamiooka branch
Softwares ◇2D CAD
 AutoCAD / AutoCAD LT
 AutoCAD Plant 3D
 Navisworks Simulate