Company Information

NameYamashiro Doboku, Inc.
Head Office LocationPostcode: 458-0847
3-39 Urasato, Midori Ku, Nagoya City, Aichi Prefecture, Japan
Tel+81-52-892-6128
RepresentativeCEO,
Shigehiro Matsuyama
FoundedOctober 18, 1979
Capital80 million yen
EmployeesEmployees: 85
Business ContentWater supply and sewerage works,
general civil engineering works,
paving works,
electric cable joint duct works,
demolition works,
pipe rehabilitation works,
TV camera surveys,
security camera installation,
venture capital business, etc.
Major ClientsAichi Prefecture, Nagoya City

July 2025, now

Yamashiro Doboku, Inc.

Business Details

General civil engineering works

  • Access works for companies and private homes

Water supply and sewerage works

  • Pipe rehabilitation works (all liner method and SW liner method)

Security camera installation

  • Material management system, security system proposal and security camera installation
  • Video production for construction sites (time-lapse photography)

License 1

  • License number: Aichi Prefectural Governor’s License (Special-5) No. 24464
  • Date of license: October 29, 2023
  • Type of construction business: Civil engineering, scaffolding and earthworks, steel structure construction, paving, dredging, painting, waterworks, demolition

License 2

  • License number: Aichi Prefectural Governor’s License (Special-6) No. 24464
  • Date of license: May 22, 2024
  • Type of construction business: Pipe construction

Construction Business License

ISO

Management System Certification

  • Certification body registration number: Q858
  • First registration date: 2003-06-18
  • Update date: 2021-06-18
  • Expiration date: 2024-06-17
  • Certification standard: JIS Q 9001:2015 (ISO 9001:2015)
  • Industry classification: 28 Construction
  • Registration scope: Construction of civil engineering structures and related services
  • Certification organization registration number: E491
  • First registration date: 2021-03-31
  • Expiration date: 2024-03-30
  • Certification standard: JIS Q 14001:2015 (ISO 14001:2015)
  • Industry classification: 28 Construction
  • Registration scope: Construction of civil engineering structures and related services

Quality Policy

  1. Based on self-improvement and corporate credibility, we aim to be a company that is useful to our customers and the local community.
  2. We aim to be the only one company in the region in civil engineering works, including water supply and sewerage works.
  3. We will continuously improve the effectiveness of our quality management system.

CSR

Corporate Social Responsibility

CSR 1 | Corporate Philosophy

Management Philosophy

We aim to create a permanent everyday society, and through the construction and services of water supply and sewerage works and civil engineering structures, all employees aim to be professionals in their work and as members of society.

We also aim to be the only one in the region by conducting trustworthy business for customer satisfaction and environmental conservation, and by working with sincerity.

January 6, 2021

Yamashiro Doboku, Inc.

President: Shigehiro Matsuyama

Quality, Basic Policy

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Environment, Basic Policy

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CSR 2 | Quality and Environmental Policy

CSR 3 | Environmental Report

Introduction

We have been certified as a Nagoya SDGs Green Partner (formerly known as Eco Business) since 2006, and 2024 marks our 18th consecutive year.

In recent years, awareness and efforts regarding environmental conservation have been increasing in all aspects of society, including work and daily life, and we recognize that it is an issue that the entire world must address.

We believe that the most important thing is to continue working on it every day.

We are proactively working on it with a spirit of trying anything and everything to contribute to a circular society, as stated in our management philosophy, even if our efforts are small at first.

We are confident that if we work on it every day, even if it is a small thing at first, we will be able to achieve great environmental conservation.

We aim to be a company that can work on all 17 SDGs goals in the future.

Leaf Leaf

Nagoya SDGs Green Partners