Strengths of CEC

We have a diverse team capable of delivering high-quality solutions tailored to our clients' varied needs.
Additionally, we bring decades of experience in international projects.

  • 1Varied and Diverse Talent

    Our company is home to a diverse group of highly skilled engineers with specialized knowledge across multiple fields. Their varied backgrounds and expertise allow us to deliver innovative solutions tailored to our clients' unique challenges.

  • 2Design Experience in International Projects

    Our company has extensive experience in designing international projects across various industries, adhering to global standards. With decades of expertise, we ensure high-quality solutions that meet the needs of clients worldwide.

  • 3Deployment of Experienced Professionals

    We offer unique services that typical staffing agencies cannot provide, including design coordination within client offices, on-site management, and steel fabrication oversight in production facilities.

  • 4Provision of Comprehensive Solutions

    To meet our clients' needs, we perform Value Engineering (VE), reviewing designs and processes to identify more efficient and cost-effective solutions.

Message from President

Since our founding in 1979, our company has participated in international projects across various industries worldwide. Along the way, we have walked alongside our clients, engaging with cutting-edge engineering services. Our strengths lie in our talented professionals and the trust we have built with clients through international projects. We are constantly committed to providing optimal solutions tailored to our clients' specific needs. We are honored to continue growing with our clients, delivering innovation and value at every stage.

President & CEO, Kazuki Nagao

Corporate information

Company Name

COMMONWEALTH ENGINEERS CO.,LTD.

Establishment

29 October 1979​

Capital

20,000,000 JPY

Resident

President & CEO, Kazuki Nagao

Business

Design services for civil and architectural projects in both domestic and international markets, along with the deployment of engineers for related tasks

Business Licenses

First-Class Architect Office Registration: Tokyo Governor Registration No. 24216
Worker Dispatch Business License: General 13-301794

Access

Tokyo Head Office
3-35-2, Takadanobaba, Shinjuku, Tokyo
JAPAN 169-0075
TEL : +81-3-5389-2301
FAX : +81-3-5389-2650

Yokohama Branch Office
8FL., Plus Taria Bldg., 3-1-4, Shin-Yokohama, Kohoku-ku,
Yokohama, JAPAN 222-0033
TEL : +81-45-548-6307
FAX : +81-45-548-6308

Takasago Office
2-1-1 Araimachi, Shinhama, Takasago City, Hyogo 676-8686, Japan

Philippine Branch ​ Office
No.4, 2nd Floor, Cacho-Gonzales Bldg.,
101 Aguirre St., Legaspi Village, Makati City
TEL : +63-2-810-9678

Employees

129 Employees (125 Engineers, 4 Administrative Staff)

Certified Professionals

First-Class Architects: 8
First-Class Structural Design Architects: 3

Software

Main Software Owned/Used by Our Company
Auto CAD
SAP 2000
STAAD PRO
SS7

FOUNDATION 3D
MIDAS CIVIL
MIDAS FEA
MIDAS GEN
MIDAS SOIL WORKS
MICROSTATION
SEIN La CREA
SP3D
STAAD FOUNDATION
TEKLA STRUCTURES

History

1979〜1999

  • 1979

    Oct.

    COMMONWEALTH ENGINEERS CO.,LTD. founded on USD27,000 in capital investment, with Minami Aoyama 6-7-17, Minato-ku, Tokyo serving as the head office.

  • 1981

    Feb.

    Head office moved to Tomihisa-cho 16-8-202, Shinjuku, TokyoCapital.

    Aug.

    Increased to 5 Million Yen.

  • 1984

    Apr.

    Company is subdivided into the Domestic Architectural Department, Overseas Architectural Department, Civil Engineering Department, Sales Department, and Management Department.

  • 1987

    Mar.

    Built-In Kitchen Furniture Department created for new business Creation of Koenji Office at Koenji Minami 3-45-2, Suginami-ku, Tokyo.

    Nov.

    Capital Increased to 10 Million Yen.

  • 1988

    Apr.

    Divisional system is introduced; Built-In Kitchen Department becomes Built-In Kitchen Division.

  • 1989

    Apr.

    Capital Increased to 20 Million Yen.

  • 1990

    Jun.

    Established in Manila, Philippines Currently known as [Philippines Branch Office].

    Jul.

    Domestic Architectural Department and Development Department subdivided into Domestic Architectural Design Department, Domestic Construction Design Department, and Development Planning Department.

    Oct.

    [Tamachi Office] founded at Shiba 5-34-6, Minato-ku, Tokyo.

    Nov.

    Founding of [Shirakawa Office] at Aza Yashikiura 11, Nishigo-mura, Shirakawa-gun, Fukushima Prefecture.

    Dec.

    Showroom for the System Kitchen Furniture Division is moved to Arai 1-2-27 (Haraspazio Nakano).
    Nakano-ku, Tokyo; the Koenji Office is closed

  • 1992

    Jun.

    Established Commonwealth Architectural Design Co., Ltd. and transferred the operations of the Domestic Design Department and Planning and Development Department.

  • 1993

    Jan.

    As part of organizational simplification, the Domestic Structural Design Department was abolished and its operations were absorbed into the Architecture Department.

    Aug.

    Opened [Kobe office] at 2-4-1 Tamondori (Kobe Chuo Building), Chuo-ku, Kobe City, Hyogo Prefecture.

  • 1994

    Jan.

    Head office moved to 3-35-2 Takadanobaba, Shinjuku-ku, Tokyo (Takadanobaba Daini Nagaoka Building).

    May

    The [Tamachi Office] was relocated to 3-3-1 Minato Mirai, Minato-ku, Nishi-ku, Yokohama, Kanagawa Prefecture (31st floor of the Mitsubishi Heavy Industries Yokohama Building) and became the Yokohama Office.

  • 1995

    Jul.

    [Shirakawa office] moved to 164-2 Takayama Nishi, Shirakawa City, Fukushima Prefecture.

  • 1996

    Jan.

    [Kobe office] relocated to 2-4-4 Tamondori, Chuo-ku, Kobe, Hyogo (5th floor, Book Loan Building)

  • 1997

    Jun.

    Changed the name of the [Manila office] in the Philippines to the [Philippine branch].

    Oct.

    Organization changed from 4 divisions and 1 branch system to 3 divisions, 1 committee, and 1 branch system.
    1. Renamed the [Administration Department] to the [Business Administration Headquarters].
    2. A new design business headquarters will be established, with the civil engineering department, architecture department, Yokohama office, and Kobe office under direct control.
    3. Establishment of Quality Service Strengthening Committee.
    4. The system kitchen division will become the business headquarters, and a new construction department will be established.

  • 1999

    Aug.

    System kitchen business headquarters closed.

    Sep.

    Moved the [Kobe office] to 2-17-5 Kojidai, Nishi-ku, Kobe, Hyogo Prefecture.

2000〜

  • 2002

    Dec.

    Moved the [Kobe office] to 1-1-2-903 Maya Kaigandori, Nada-ku, Kobe City, Hyogo Prefecture.

  • 2004

    Dec.

    The [Kobe office] was relocated to 3-233 Gakuen Yamatocho, Nara City, Nara Prefecture and became the [Kansai Office].

  • 2005

    Jan.

    Opened [Takasago Sales Office] at 2-1-1 Niihama, Arai-cho, Takasago City, Hyogo Prefecture.

  • 2006

    Nov.

    Opened the Overseas [Design Promotion Office] at 4-17-15 Takadanobaba, Shinjuku-ku, Tokyo.

  • 2007

    Mar.

    [Yokohama office] was abolished and operations were absorbed into the Architecture Department.

    Apr.

    [Philippine branch] relocated to 6FL ODC International Plaza Building, 219 Salcedo Street, Legaspi Village, Makati City, Philippines.

  • 2009

    Jun.

    [Philippine branch] relocated to Office No.4, 2FL Cacho-Gonzales Building, 101 Aguirre St., Lagaspi Village, Makati City, Philippines.

  • 2010

    Apr.

    Reopened [Yokohama office] at 3-3-1 Minato Mirai, Nishi-ku, Yokohama, Kanagawa Prefecture.

    Jul.

    [Overseas Design Promotion Office] abolished

  • 2012

    May

    [Kannai office] opened in Room 714, 2-7-10 Okina-cho, Naka-ku, Yokohama, Kanagawa Prefecture.

    Dec.

    [Kannai office] moved to Room 309, 2-7-10 Okina-cho, Naka-ku, Yokohama, Kanagawa Prefecture due to business expansion.

  • 2013

    May

    [Belgian liaison office] opened at Braamstraat 18, 3471 Hoeleden, Belgium.

  • 2018

    Jul.

    [Kannai office] moved to 8th floor, Plastaria Building, 3-1-4 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture, and changed its name to [Shin-Yokohama Office].

Main business partners

  • IHICo.,Ltd.

  • ARVOS CORPORATION

  • BABCOCK-HITACHI K.K.

  • ECHO CORPORATION

  • MARUZEN PETROCHEMICAL CO., LTD.

  • OBAYASHI CORPORATION

  • URBAN RENAISSANCE LINKAGE CO., LTD.

  • KAJIMA CORPORATION

  • MITSUI ENGINEERING & SHIP BUILDINGS CO., LTD.

  • KAWASAKI HEAVY INDUSTRIES., LTD.

  • MITSUBISHI HEAVY INDUSTRIES, LTD.

  • MITSUBISHI HITACHI POWER SYSTEMS CO.,LTD.

  • KINKI RTOJU ESTATE CO., LTD.

  • KUMAGAI GUMI CO., LTD.

  • KOBE STEEL, LTD.

  • KOSMO ENGINEERING Co., Ltd.

  • COSMO OIL CO., LTD.

  • SHIMIZU CORPORATION

  • SHINKO PANTEC CO., LTD.

  • KOBELCO ECO-SOLUTIONS CO., LTD.

  • SUMITOMO CORPORATION

  • SEIRYO ENGINEERING CO., LTD.

  • TAISEI KISO SEKKEI Co., Ltd.

  • TAKENAKA CORPORATION

  • CHIYODA CORPORATION

  • DENKI KAGAKU KOGYO KABUSHIKI KAISHA

  • TOKYO GAS ENGINEERING CO., LTD.

  • TOSHIBA CORPORATION

  • TOA CORPORATION

  • TOKYO ELECTRIC POWER SERVICES Co., Ltd.

  • TOYO ENGINEERING CORPORATION

  • TODA CORPORATION

  • WEST JAPAN ENGINEERING CONSULTANTS, INC.

  • NISHIMATSU Co., Ltd.

  • JGC CORPORATION

  • JGC PLANT SOLUTIONS CO., LTD.

  • NEWJEC INC.

  • HAZAMA CORPORATION

  • PACIFIC CONSULTANTS, INC.

  • HITACHI CO., LTD.

  • HITACHI ZOSEN CORPORATION

  • HITACHI ARCHITECTS & ENGINEERS

Access

  • Tokyo Head Office

    3-35-2, Takadanobaba, Shinjuku, Tokyo JAPAN 169-0075

    Google Map

    TEL: +81-3-5389-2301
    FAX: +81-3-5389-2650

  • Shinyokohama Office

    8 FL., Plus taria Bldg., 3-1-4, Shin-Yokohama, Kohoku-ku, Yokohama, Kanagawa JAPAN 222-0033

    Google Map

    TEL: +81-45-548-6307
    FAX: +81-45-548-6308

  • Philippines Branch Office

    U304 Cristina Condominium
    143 Legaspi St., Legaspi Village, Makati City, Metro
    Manila 1229

    Google Map

    TEL: +81-45-548-6307