KenKan Consultants Co.,Ltd.
Integrated Consultants Leading Environmental Fields
Company Overview
スクロールで表全体をご覧いただけます
| Company Name | KenKan Consultants Co.,Ltd. | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Head Office | 2-23-2 Higashi Ikebukuro, Toshima-ku, Tokyo 170-0013, Japan | ||||||||||||||||||||
| Establishment | January 1983 (Founding April 1966) | ||||||||||||||||||||
| Capital | ￥250 million | ||||||||||||||||||||
| Business contents | Planning on the environment / construction project, Survey and planning, Design and construction supervision, Production and sales of materials |
||||||||||||||||||||
| Major trading partners | Ministry of Land, Infrastructure, Transport and Tourism, Related Foundation,NEXCO,Local governments,etc. |
||||||||||||||||||||
| Registration qualification |
|
||||||||||||||||||||
| Officers |
|
||||||||||||||||||||
| Number of Employees | 493 people (Engineers 387 people) (As of April 2025) | ||||||||||||||||||||
| Group Companies |
|
Amount of sales / Ordinary income
Certified Personnel (As of April 2025)
| Registered Professional Engineer | 229 people | |
| Engineering Management | 51 people | |
| Civil Engineering | 148 people | |
| Water Supply & Sewerage | 1 people | |
| Environment | 18 people | |
| Applied Science | 5 people | |
| Information Engineering | 1 people | |
| Environmental Engineering | 3 people | |
| Agriculture | 1 people | |
| Mechanical Engineering | 1 people | |
| Registered Civil Engineering Consulting Manager | 66 people | |
| PhD (Engineering/Agriculture/Science/Fisheries Science) | 24 people | |
| Senior Civil Engineer | 1 people | |
| 1st grade civil engineer | 6 people | |
| 1st Class Civil Engineer | 3 people | |
| 1st Class Architect | 4 people | |
| 1st Class Civil Engineering Works Execution Managing Engineer | 19 people | |
| 1st Class Landscape Architectural Works Execution Managing Engineer | 8 people | |
| Surveyor | 17 people | |
| River Maintenance Engineer | 10 people | |
| River checker | 76 people | |
| Concrete Diagnostic Engineer | 2 people | |
| Road Bridge Inspector | 2 people | |
| Geotechnical Engineer | 3 people | |
| Certified Environmental Measurer | 25 people | |
| Certified Weather Forecaster | 6 people | |
| Pollution Control Administrator | 25 people | |
| Soil Contamination Surveys Technical Manager | 5 people | |
| Registered Environmental Education Instructor | 1 people | |
| Registered Environmental Counselor | 9 people | |
| Environmental Assessor | 29 people | |
| Biotope Planners and Builders | 92 people | |
| Taxonomic Proficiency Test | 40 people | |
| Environmental Restoration Doctor | 2 people | |
| Environmental Measurement and Chemical Analysis Engineer | 1 people | |
| Tree Doctor | 2 people | |
| Certified Urban and Regional Planner | 4 people | |
| Information Technology Engineer | 21 people | |
| Asbestos Surveyor | 3 people | |
| Certified Asbestos Analysis Engineer | 2 people | |
History
| April 1966 | Establishment |
|---|---|
| January 1983 | KenKan Consultants Co.,Ltd. established at 1-11 Kanda Ogawamachi, Chiyoda-ku, Tokyo |
| September 1983 | Osaka Branch opened |
| December 1983 | Registered as a construction consultant |
| December 1983 | Fukuoka Branch opened |
| September 1984 | Registered as surveying business |
| January 1985 | Sendai Branch opened |
| February 1985 | Sapporo Branch opened |
| April 1985 | Environmental Analysis Center opened |
| June 1985 | Head office relocated to 2-10-10 Yushima, Bunkyo-ku, Tokyo |
| October 1985 | Registered as a Measurement Certification Business (Concentration) |
| March 1987 | Registered as a Measurement Certification Business (Sound pressure level) |
| May 1987 | Hiroshima Branch opened |
| January 1989 | Nagoya Branch opened |
| June 1991 | Head office relocated to 2-17-12 Yushima, Bunkyo-ku, Tokyo |
| May 1993 | Registered as a First Class Architect Office |
| May 1994 | Head office relocated to 2-23-2 Higashi-Ikebukuro, Toshima-ku, Tokyo |
| April 1995 | Registered as a Geological Surveyor |
| April 1996 | Takamatsu Branch opened |
| July 1996 | Omiya Branch (currently Saitama Branch) opened |
| March 1997 | Niigata Branch opened |
| April 1997 | Tokyo Branch opened |
| July 1997 | Fukuoka Branch upgraded to Fukuoka Branch |
| October 1998 | ISO 9001 certification acquired |
| March 2001 | Environmental Science and Technology Center opened |
| December 2002 | Nagoya Branch upgraded to Nagoya Branch |
| April 2003 | Okinawa Branch opened |
| September 2003 | Shizuoka Sales Branch opened |
| August 2004 | Gifu Sales Branch opened |
| December 2004 | Mie Sales Branch opened |
| April 2006 | Each Branch was upgraded to Office and each Branch was upgraded to Branch |
| July 2006 | Fukushima Sales Branch opened |
| August 2007 | Registered as a Working Environment Measurement Organization |
| February 2008 | Tochigi Sales Branch opened |
| April 2008 | Shimane Sales Branch opened |
| May 2008 | Yamanashi Sales Branch opened |
| May 2008 | Kagoshima Sales Branch opened |
| June 2008 | Kumamoto Branch opened |
| October 2008 | Gunma Sales Branch opened |
| November 2008 | Ibaraki Sales Branch was opened |
| April 2009 | Tokushima Sales Branch was opened |
| April 2009 | Toyama Sales Branch opened |
| May 2009 | Kochi Sales Branch opened |
| January 2010 | Kumamoto Branch changed to Kyushu Office Kumamoto Sales Branch |
| June 2010 | Hiroshima Branch Okayama annex opened |
| July 2010 | Osaka Branch upgraded to Osaka Office |
| July 2011 | Kanagawa Sales Branch opened |
| November 2011 | Sendai Branch was upgraded to Tohoku Office |
| December 2011 | Iwate Sales Branch was opened. |
| August 2012 | Hyogo Sales Branch opened |
| April 2013 | Okayama annex upgraded to Okayama Branch |
| June 2013 | Akita Sales Branch opened |
| August 2013 | Oita Sales Branch opened. |
| April 2015 | Miyazaki Sales Branch opened. |
| June 2015 | Ehime Sales Branch opened |
| September 2015 | Kyoto Sales Branch and Nara Sales Branch opened. |
| June 2017 | Kochi Sales Branch upgraded to Kochi Branch |
| January 2018 | Yamagata Sales Branch opened |
| January 2019 | Toyota Sales Branch was opened. |
| January 2019 | Shinshiro Sales Branch opened |
| July 2019 | Hachinohe Sales Branch opened |
| March 2020 | East Shizuoka Sales Branch opened |
| March 2020 | Tono Sales Branch was opened |
| January 2021 | Chiba Sales Branch was opened |
| February 2021 | Yatsushiro Branch opened |
| May 2021 | Saga Sales Branch was opened. |
| November 2021 | Yamaguchi Sales Branch opened |
| August 2024 | Ishikawa Sales Branch opened |