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Management Philosophy

Company motto

With technology
contribute to society

Company motto

To cultivate intellect, physical strength, and willpower,
Harmonious cooperation,
Receive kindness and act with sincerity.

Initiatives

Towards climate change
Supported
Safe and strong
National land development
Technological innovation and
Sharing of knowledge
The future
Human resource development
Trusted
corporate governance

Corporate Profile

Company NameChuo Kaihatsu Co., Ltd.
AddressMain office
3-13-5 Nishi-Waseda, Shinjuku-ku, Tokyo 169-8612
ContactTEL: 03-3208-3111 FAX: 03-3208-3127
FoundingMarch 21, 3
RepresentativeRepresentative Director and Chairman: Ichiro Seko (PhD: Engineering, Professional Engineer: Construction Division)
Makoto Tanaka, President and Representative Director (Professional Engineer: Comprehensive Technical Management, Construction Division)
Capital100 million yen (Net assets: 5,249 million yen)
Sales amount10,550 million yen (FY6)
RegistrationConstruction Consultant Registration No. 06-13
Geological Survey Contractor Registration No. 04-153
Surveying Business Registration No. (16)-26
Registered First-Class Architectural Firm with the Governor of Saitama Prefecture (3) No. 10514
Designated investigation agency under the Soil Contamination Countermeasures Act (Designation number: Kan2003-8-3011)Disclosed Information
Registered as a ground guarantee system ground company in July 2009 (Registration number 30000355)
Registered Measurement Certification Business, Concentration, Saitama Prefecture, No. 585
Registered Measurement Certification Business, Sound Pressure Level, Saitama Prefecture, Registration No. 36
Registered Measurement Certification Business, Vibration Acceleration Level, Saitama Prefecture, Registration No. 24
Ministry of Land, Infrastructure, Transport and Tourism License (Special-6) No. 3546 (Civil Engineering Works) (Scaffolding and Earthwork Works) (Well Drilling Works) (Demolition Works)
security industry sign
Construction consultant
registration department
Rivers and erosion control, coasts and oceans, ports and airports, roads, sewage systems, agricultural civil engineering, urban planning and regional planning, geology, soil mechanics and foundations, steel structures and concrete, tunnels, construction environment
Board Member
  • ChairmanIchiro Seko
  • PresidentMakoto Tanaka
  • Executive vice-presidentKinichi Ando
  • Managing DirectorWaka Hashimoto
  • Managing DirectorShusuke Oji
  • DirectorShunichi Hamada
  • DirectorShuichi Nishimura
  • DirectorRyosuke Seko
  • Statutory AuditorYoshikazu Kaji
  • Managing Executive OfficerNaoya Maeda
  • Managing Executive OfficerKenjiro Orisaku
  • Executive Officer,Hajime Matsui
  • Executive Officer,Yugo Matsuda
  • Executive Officer,Takashi Mochizuki
  • Executive Officer,Masato Miura
  • Executive Officer,Hiroaki Kawahara
  • Executive Officer,Kenji Kawamura
  • Executive Officer,Makoto Fukuhara
  • Executive Officer,Norihiro Waga
  • Executive Officer,Hideo Matsumoto
Number of staff351 people (July 1, 2020)
(239 full-time employees, 112 contract employees)
OfficesList of Offices

Qualified technician

Doctor10
technician146
First-class architect1
XNUMXst Class Civil Engineering Construction Management Engineer51
XNUMXnd Class Civil Engineering Construction Management Engineer10
Surveyor34
RCCM33
Geological Survey Engineer118
Environmental Measurer5
Soil Contamination Survey Technical Manager16

MS Certification

Product Quality Management SystemRegistered standards: ISO9001:2015 / JIS Q9001:2015
Registered offices: All offices in Japan
Certification obtained: August 1999
Certification number: JQA-QM3604
Quality Policy
Information security
Management system
Registered standards: ISO/IEC 27001:2022 / JIS Q 27001:2023
Registered businesses:
Technical Center: Information Management Office
Corporate Planning Center: Human Resources Management Office, ES Promotion Office
Kanto Branch: Design Department, Sales Department, Operations Section
Solution Center: Information Business Division, Disaster Prevention & Regional Planning Division, Geomaintenance Business Division, Geosolutions Business Division
Tokyo Branch Office: Technical Department, Sales Department, Operations Department
Certification obtained: February 2009
Certification number: JQA-IM0719
Information Security Policy
Environmental management systemRegistered standard: Eco Action 21 Guidelines 2017 Edition (Ministry of the Environment)
Registered businesses: All businesses in Japan
Certification obtained: February 2011
Authentication number: 0006576
Environmental Policy
Environmental Management Port

General Employer Action Plan

Based on the Act on Promotion of Measures to Support the Development of the Next Generation (hereinafter referred to as the "Next Generation Act"), the following three points are established when companies work to improve the employment environment to enable employees to balance work and childcare, and to improve diverse working conditions, including for employees who do not have children.
(1) Planning period
(2) Specific goals
(3) Measures to achieve the objectives and the timing of their implementation

Planning period: April 1, 2020 - March 31, 2020

Our company's initiatives to promote the advancement of women

Since the mid-2010s, our company has been promoting diversity, including the active employment of female employees. As a result, the average age of our female employees is younger than that of our male employees, and the gender wage gap described above exists as of 2025.
Our company's performance evaluation system assesses both male and female employees equally and at the same level. We will work to improve the work experience of our female employees and reduce the gender pay gap in the medium to long term.

① Results of mid-career hiring by gender (FY2025 results)

MaleFemale
Permanent20
Contract employee21

② Paid leave utilization rate (FY2024 results)

62.6%*2

③ Gender wage gap (FY2025 results) *3

Gender wage gap
(The ratio of women's wages to men's wages)
Average students age
All workers66.4%Male: 46.1 years old
Female: 41.9 years old
Regular workers70.2%Male: 41.5 years old
Female: 37.0 years old
非正規労働者33.3%Male: 64.7 years old
Female: 53.8 years old
footnote
*1) Posted on April 23, 2020
*2) Calculation period: October 2024 to September 2025
*3) Target period: Fiscal year 2025 (April 1, 2025 to March 31, 2026)
[Calculation conditions]
Wages: Includes base salary, various allowances, overtime pay, bonuses, and commuting allowance, but excludes retirement pay.
Regular employees: General staff, permanent contract employees (excluding executives)
Non-regular workers: Contract employees, re-employed retirees, fixed-term contract employees, part-time workers

Efforts toward work style reform

Chuo Kaihatsu Co., Ltd. has established a "Work Style Reform Promotion Committee" within the company to ensure compliance with relevant laws and regulations and to implement work style reform initiatives.

Examples of initiatives

  • Monitoring of working hours for all employees and guidance on reducing overtime (FY2025 results: average of 18.6 hours per month)
  • Promotion of No Overtime Day (every Wednesday) (FY2025 results: 62.7% of employees went home after work *average for employees throughout the year)
  • Monitoring and encouraging the use of paid leave (FY2024 results: 62.6% utilization rate *average for all employees)
  • Encouraging teleworking
  • Kurumin certification obtained (January 2023)

What is Kurumin certification?

Kurumin is a system in which the Minister of Health, Labour and Welfare certifies companies as "childcare support companies" if they meet requirements such as formulating an action plan based on the Act on Promotion of Measures to Support the Development of the Next Generation and achieving their goals. In order to be certified as a Kurumin company, there are 10 criteria that must be met, including a female childcare leave utilization rate of 75% or more, the ability to choose working styles when there are children before elementary school age, and a male childcare leave utilization rate. These criteria were revised in 2022, and the design of the Kurumin mark was also updated.

Initiatives to improve employee satisfaction

In 2019, a working group of 10 young employees in their 20s and early 30s was formed to consider creating an attractive work environment, and they made recommendations to the president and management team regarding creating a more comfortable working environment.
As a result, Chuo Kaihatsu has established a specialized department (ES Promotion Office) aimed at improving employee satisfaction (ES), and regularly conducts surveys of all employees to quantify employee satisfaction and strive to improve it.

Percentage of mid-career hires of regular workers

202320242025
Ratio of mid-career hires among regular employees21 %41 %10 %
Publication date: July 2026, 5