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Profile

Message From the President

Harmony, Creation and Challenge
Our company has continued to develop as one of the largest comprehensive architectural firm in Nagano since its foundation in 1970. We all ensure the design quality with peace of mind as a specialist group. As a group of specialists, we ensure the design quality of all of our projects, and to meet the satisfactory level of our clients. We will always aim to be an organization, which can deliver high-end design solutions not only for the architecture itself, but also for the surrounding spaces, with the awareness of “Architecture within the Environment” and work to create architectures that are more environmentally friendly. We will further strengthen our business local cities in Japan, as well as the 3 overseas bases already established in Asia where development is expected in the future.
We will continue to strive to adapt ourselves to the changing times and environment, with further improvement and challenge, and guarantee our unwavering commitment to value and quality.
Namio Sekiguchi, President

Company Profile

Company Name ACA SEKKEI COMPANY LIMITED
Address Name First-Class Registered Architect Office
Registration Nagano Head office
Registered by Governor of Nagano Prefecture (Register No. K77312)
Management Architect : Hidekuni Tatsuno
Tokyo Branch
Registered by Governor of Tokyo Metropolitan (Register No. 53789)
Management Architect : Kouji Sato
Establishment July 15 , 1970
Capital 40,000,000 yen
Employees 100(male 85, female 15)
(Total members of ACA Group 138)
Qualified Employees Registered Japan 1st-Class Architects/Engineers : 48
Building services architects : 3
Quantity surveyors : 12
In charge of structure : 8
In charge of mechanical and electrical design : 13

Scope of Services

ACA SEKKEI Organization Chart

Branch/Overseas Office

Nagano head office 2360-4 Yanagihara, Nagano City, Nagano 381-0012, Japan
TEL. +81-26-296-8300 FAX. +81-26-296-8350・・・MAP
Tokyo branch office Kanda-Ohki Bldg.9F, 3-3-5 Kandakajicho, Chiyoda-ku,Tokyo 101-0045, Japan
TEL. +81-3-5297-8177 FAX. +81-3-5297-8176・・・MAP
Matsumoto branch office 2-8-10 Soyano, Matsumoto City, Nagano 390-0842, Japan
TEL. +81-263-88-2224 FAX. +81-263-88-2237・・・MAP
Joetsu branch office 4-3-19 Nakamachi, Joetsu City, Niigata 943-0831, Japan
TEL. +81-25-530-7130 FAX. +81-25-530-7137・・・MAP
Taipei Office 11F-5, No.200 Songjiang Road, Taipei, Taiwan
TEL. +886-2-2543-2427・・・MAP
Ho Chi Minh Office 12F – Havana Tower, 132 Ham Nghi Street, Ben Thanh Ward, District1,Ho Chi Minh City, Viet Nam
TEL. +84-8-3821-2332・・・MAP
Yangon Office No.85, 5B, Sinn O Dan Street, Latha Township, Yangon, Myanmar
TEL. +95-1-229367・・・MAP

History

1970 Establishment of TATSUNO MATSUYAMA SEKKEI COMPANY LIMITED
1999 change of the company’s name to ACA SEKKEI COMPANY LIMITED
2001 ISO9001 certification
2005 Participation in PFI projects
2006 Establishment of ACA TOSHIKIKAKU COMPANY LIMITED
First private placement
2007 Establishment of the Tokyo branch office
2008 The SANYU Facilities Design COMPANY LIMITED participates in ACA GROUP
2010 Establishment of the Taipei office
2011 Transfer of management rights to ACA TOSHIKIKAKU COMPANY LIMITED
2012 Second private placement
Establishment of the Ho Chi Minh Office
Establishment of ACA KENBI COMPANY LIMITED
2013 Establishment of the Yangon Office
Establishment of the ACA CONSULTING COMPANY LIMITED
2014 Establishment of the Matsumoto branch office and the Joetsu branch office
Agreement conclusion with DESIGN 2000 GROUP COMPANY LIMITED
Establishment of the ACA Architectural Inspection COMPANY LIMITED
2017 Opening of BIM promotion department

Major Affiliated Organizations

・The Japan Institute of Healthcare Architecture
・The Architectural Institute of Japan
・The Japan Structural Consultants Association
・The society of Heating, Air-Conditioning and Sanitary Engineers of Japan
・The Urban Renewal Association of Japan
・Nagano Association of Architectural Firm
・The Nagano Building Disaster Prevention Association
・The Nagano Chamber of Commerce and Industry
・Tokyo Association of Architectural Firms
・The Japanese Business Association of Ho Chi Minh City
・Japan Chamber of Commerce and Industry, Myanmar

Directors

Executive officers
President and Chief Operating Officer
Vice President
 
Managing Executive Officer
Managing Executive Officer
Managing Executive Officer
Managing Executive Officer
Executive Officer
and General Manager of Tokyo Branch
Executive Officer
Namio Sekiguchi
Registered Japan 1st- Class Architect
Yoshinori Kobayashi
Registered Japan 1st- Class Architect
Isao Maruyama
Registered Japan 1st- Class Architect
Keiji Yumoto
Registered Japan 1st- Class Architect
Yoshio Sakamoto
Registered Japan 1st- Class Architect
Hiroaki Otani
Kouji Sato
Registered Japan 1st- Class Architect
Akira Kosuda
Member of the Board
Representative Director
Director
Director
Director
Director
Taiichi Tatsuno
Registered Japan 1st- Class Architect
Koichi Tatsuno
Registered Japan 1st- Class Architect
Hidekuni Tatsuno
Registered Japan 1st- Class Architect
Namio Sekiguchi
Registered Japan 1st- Class Architect
Yoshinori Kobayashi
Registered Japan 1st- Class Architect

© ACA SEKKEI CO., LTD.