Company Profile
Chiikan is one of Japan’s leading regional environmental consulting firms, known for its deep expertise in nature, strong support for corporate environmental and CSR initiatives, and local knowledge through its nationwide branches. The company is committed to achieving the best outcomes for both nature and people.
Corporate Date
| Established | June 8, 1981 |
| Capital | JPY 10 million |
| Board Members | President Satoshi Takatsuka Managing Director Hiraku Hamada Director Kotaro Sasaki Director Satoshi Kamisaki Director Tsuyoshi Inoue Audit & Supervisory Board Member Minoru Harada |
| Technical advisor | Takayuki Miyahata |
| Advisor | Yasuo Ezaki（University of Hyogo, Professor Emeritus） |
| Number of employees | 154（June 2025, including 1 affiliated company） |
| Qualified Invoice Issuer Registration Number | T6010901007401 |
Number of Qualified Personnel
| 25 Professional Engineers | Engineering Management Environment Conservation (1 person) |
| Environment Environment Conservation (15 people) | |
| Civil Engineering Environmental Assessment & Management for Construction (8 people) Urban & Regional Planning (1 people) | |
| 49 Taxonomic Proficiency Test 1st Grade Holders | Plants Plants (13 people) |
| Animals Mammals/Reptiles/Amphibians (11 people) Birds (7 people) Fishes (9 people) Insects (7 people) | |
| Aquatic organisms Benthos (2 people) | |
| 18 Taxonomic Proficiency Test 2nd Grade Holders (excluding 1st grade holders) | Plants (5 people) Animals (9 people) Aquatic Organisms (4 people) |
| 4 Registered Civil Engineering Consulting Managers (RCCM) 4 Environmental Assessors 6 Doctors 5 Arborists 3 First-class Landscape Gardening Execution Managers 8 First-class Biotope Planning Managers 6 First-class Biotope Execution Managers 1 GIS Expert 2 Forest Specialists 3 Wildlife Conservation and Management Survey Coordinator 2 Agricultural Wildlife Damage Control Advisor | |
Other Infomation
| Locations | Main Office, Technical, Planning and Sales: Setagaya-ku, Tokyo ―Kita-Kanto Office, Kanagawa Office, Yokohama Office, Saitama Office Hokkaido Branch: Sapporo, Hokkaido Tohoku Branch, Wildlife Management Department : Sendai City, Miyagi Prefecture ―Fukushima Office Nagoya Branch: Nagoya City, Aichi Prefecture Osaka Branch: Takatsuki City, Osaka Prefecture Chushikoku Branch: Fukuyama City, Hiroshima Prefecture Kyushu Branch: Fukuoka City, Fukuoka Prefecture ―Okinawa Office SIA Environmental Office (Group company): Takanezawa Town, Tochigi |
| Registration | Construction Consultant Urban & Regional Planning / Environmental Assessment & Management for Construction Registration Number: Const.03 No.5694 JIS Q 9001: 2015 ISO9001: 2015 Tokyo Group Registration Registration Number: Q0083 KES / Environmental Management System / Standard Step 2 Registration Registration Number: KES2-0647 |
| Affiliated Organizations Academic Societies, etc. | Japan Association of Environmental Assessment, The Ecological Society of Japan, The Ornithological Society of Japan , Japanese Institute of Landscape Architecture , GIS Society of Japan , Nature Environment Coexistence Technology Association , NPO Association of Wildlife Research , NPO The Geoecological Conservation Network , Bird’s Eye Research Study Group , Japan Business Initiative for Biodiversity , Association for Business Innovation in harmony with Nature and Community and many others. |