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CONTRIBUTING TO A PROSPEROUS COMMUNITY

ONAKAGUMI Co., Ltd

We have coexisted with the environment by sharing in the community’s collective wisdom over many years.
If we consider the Earth as an island, then we can say that the collective knowledge we possess on this island represents all of the knowledge in the world.

GREETINGS

As a locally founded general contractor, we have grown vigorously since our establishment, making significant achievements guided by our core principle of Sincerity.

We deeply appreciate your support and loyal patronage over the years.

The role our company plays in society has adapted to keep up with the times.

As occupations become more diversified in the modern age, people’s needs also change. New developments such as AI and ICT are being adopted rapidly and are currently being used to improve business efficiency through the modernization of occupational techniques.

In this age of rapid change, we believe that our responsibilities include adhering to timelines, ensuring security, safety, and trust, as well as serving our customers faithfully.

Under our corporate mission, which has been the core of our company, we have been proud to build infrastructure that the community can be proud of and that will stand the test of time.

We sincerely thank you for your continued guidance and encouragement.

PROFILE

Company Name ONAKAGUMI Co. Ltd
Head Office 2-1-1 Ohira, Urasoe, Okinawa, Japan 901-2113
TEL: +81- 98-878-9558   FAX: +81- 98-878-9516
Capital 100,000,000 yen
Corporate Officers
Chairman
Ken Naka
President
Taisuke Naka
Vice President
Hiroyuki Naka
Senior Executive Director
Toshiro Irei
Senior Executive Director
Masaru Naka
Executive Officer
Hiroshi Une
Executive Officer
Tetsuya Yoshida
Executive Officer
Yoshiaki Miyagi
Executive Officer
Hajime Nakamura
Auditor
Misao Shinjyo
Primary Banks Bank of The Ryukyus, The Bank of Okinawa,
Okinawa Kaiho Bank,Okinawa Development Finance Corporation

Special Construction License Obtained from the Okinawa Prefectural Governor: No. 3160

Civil engineering / Construction / Carpentry / Plastering /

Scaffolding / Masonry / Roofing / Tile, Brick, and Block work /

Steel Construction / Reinforcement / Paving / Dredging work/ Sheet-metal work / Glass / Painting /

Waterproofing/ Interior finishing /

Heat insulation / Interior fittings / Plumbing/ Demolition /

General Construction License Obtained from the Okinawa prefectural governor: No. 3160

Plumbing

Services

■ Contracting for civil engineering, design, construction, and project management.

■ Sales of construction materials. Contracting for electrical and plumbing work.

■ Leasing of construction equipment and vehicles. Property and real estate sales, and property management.

■ Sales and collection of sand and gravel.

■ Damage insurance and life insurance solicitation.

ORGANIZATION CHART

HISTORY

  • Jan. 1972

    Established as Naka construction.

  • May. 1976

    Obtained construction license

  • Dec. 1982

    Renamed as Onakagumi Co.,Ltd. with a capital of twenty million yen, moved to 632-9 Uchima, Urasoe city.

  • Dec. 1982

    Opened Iheya branch office.

  • Nov. 1984

    Increased capital to 37 million yen and moved to 2-1 Ohira, Urasoe city.

  • Jun. 1988

    Increased capital to 49 million yen.

  • Jun. 1992

    Increased capital to 100 million yen.

  • Dec. 2000

    Obtained ISO9001(Quality)certification

  • Feb. 2002

    Opened an Ishigaki business office.

  • July 2009

    Opened a Central business office.

  • Oct. 2013

    Opened a Haebaru business office.

  • Oct. 2013

    Obtained ISO14001(Environment)certificate

  • Jan. 2016

    Opened a North business office.

ISO9001・ISO14001 QUALITY POLICY / ENVIRONMENTAL POLICY

Our policy is to provide products meeting our customers’ requirements and to contribute to the community. By listening to our customer’s needs, we aim to improve our customer service and in-house organization.

登録証

Our policy is to protect nature, nourish the earth, and create a thriving environment.
Together, we will consider how to pass the Earth on to the next generation and build a brighter future.

登録証

HEALTH AND SAFETY MANAGEMENT

Basic philosophy The most important part of a company is the people. Therefore, we carry out our work with the idea that our employees’ well-being is the starting point. For us, safety and health management for our staff and contractors are top priorities.
Safety and Health Policy
  1. We have established an organizational system of safety and health management based on the Industrial Safety and Health Act and make every effort to prevent occupational accidents.We strive to manage the health of our staff by working with industrial physicians who belong to the Okinawa Medical Association.
  2. We will further promote disaster prevention through risk assessment and risk prediction measures, and strive to continuously reduce occupational accidents.
  3. To ensure thorough safety on the job site, we hold regular safety meetings as well as safety education classes, and top-ranking staff carry out monthly safety patrols to understand site conditions.
  4. We emphasize safety as our priority, and make continuing efforts to prevent accidents by employing constant safety checks.
Regulations forSafety Management
  1. Persons with certain medical conditions are not authorized to enter construction areas.
  2. Persons with blood pressure issues are not authorized to enter construction areas.
  3. Keeping the Work Place Clean and Organized
    Always keep the work place clean and tidy in order to improve work efficiency and prevent accidents.
  4. Smoking
    Smoking is never permitted while conducting work activities.A designated smoking area will be provided, and smokers must use only this location.
  5. Use of Hard Hats, Safety Harnesses, and Safety Shoes is required.
    (1) Always wear a hard hat during working hours.
    (2) Fasten safety belts or harnesses tightly to the waist and attach the tether to the master  rope where safety belts are required.
  6. Fire ExtinguishersFire extinguishers will be installed in designated areas at each site.
  7. Heavy Equipment Operation
    (1) Create a no-go zone around hazardous work areas, machines, and under lifting loads.
    (2) Only a qualified operator may operate heavy equipment.
    (3) A heavy equipment operators license should always be carried by the operator.
  8. Fall protection equipment
    Handrails, safety ropes, and safety nets must be installed before starting a task.
  9. Using a Dust Mask
    Use of a dust or particle mask when spraying paint or chemicals, or near sawdust while working indoors, is required.
  10. Welding
    Use of a shield or welding mask is required.
  11. Handling Rigging Rope
    (1) Rigging Rope (for lifting a load)
    Only use wire rope fitted with a crimped ferrule end connection to secure a load.
    (2)“Daitsuki” Five strand cable for load lifting 
    For securing objects, a minimum of five stranded twisted cables, or “Kagosashi” cables
    (Twisted in the opposite direction) should be used.

CONSTRUCTION WORK

  • Public Facilities

    SOLA Okinawa Health and Medical Engineering College

  • Public Facilities

    Okinawa Karate Kaikan

  • Public Facilities

    TEDAKO Cultural Exchange Center

  • Public Facilities

    Okinawa Prefectural Budokan Arena

  • Public Facilities

    Okinawa Prefectural General Welfare Center

  • Public Facilities

    Kume-jima Airport Passenger Terminal

  • Public Facilities

    Nanjo City Sugar Hall Cultural Center

  • Public Facilities

    Iheya Village Industrial Cooperation Center

  • Public Facilities

    Okinawa Institute of Science and Technology’s Marine Facility and others

  • Condominium

    New Construction Work for VentVert Hills Takushi Hills

  • Condominium

    New Construction Work for Y’s Mark Grande Chatan

  • Condominium

    New Construction Work for Y’s Estem Court Asato

  • Condominium

    New Construction Work for Rêve Nishihara Ecole Ⅱ

  • Condominium

    Sharle Lake Shuri Castle Park

  • Condominium

    New construction work for Free Bell Minami Uehara Brezza

  • Condominium

    New construction work for Lala Place Makabi

  • Condominium

    New construction work for Pressance Loger Urasoe-Gusukuma Rêve

  • Condominium

    New construction work for Pressance Loger Miebashi Rêve

  • Condominium

    New Construction Work for Milco Mansion Ginowan Maehara Creuset

  • Condominium

    New construction work for Le Cinq Naha Nishi Machi

  • Apartment

    New Construction Work for Ocean Palace Mashiki

  • Apartment

    New construction work for an apartment for customer M.

  • Apartment

    New construction work for a 1 room building in Orokou

  • Apartment

    New construction work for an apartment, including store front space for customer T

  • Apartment

    New construction work for an apartment for customer T

  • Apartment

    New construction work for a condominium for customer I

  • Apartment

    New construction work for a condominium for customer K

  • shops and buildings with leased commercial space

    New construction work for Makeman’s main branch, Urasoe

  • shops and buildings with leased commercial space

    New construction work for “Dream Building”

  • shops and buildings with leased commercial space

    Construction work for Hotel Grand View Okinawa

  • shops and buildings with leased commercial space

    Construction work for Ayapani Bowling Center, Ishigaki

  • medical / welfare facility

    New construction work at the Hakuyo building

  • medical / welfare facility

    New Construction work for Heart Life Clinic

  • medical / welfare facility

    Expansion and renovation work at Tokiwa Nursery School

  • medical / welfare facility

    New construction work at Azuma Nursery School

  • medical / welfare facility

    Renovation work at Yuai Nursery School

  • Residential

    New home construction for customer K

  • Residential

    New home construction for customer I

  • Residential

    New home construction for customer N

  • Residential

    New home construction for customer S

CIVIL ENGINEERING

  • Cornerstone of Peace

  • Superstructure work of the Itoman elevated bridge

  • Miyako-Irabu farm irrigation project in FY 2013 Nakahara underground dam construction

  • Work on the Yone elevated bridge in FY 2011

  • New construction work on the Shikina Tunnel, Maaji-Kumoji Line

  • Road improvement work in Zatsun in FY 2010

  • Madanbashi bridge maintenance project

  • Noho large bridge project

  • Kurima large bridge project

  • City road International Center line - Urban monorail construction work (Substructure work FY2014-1)

  • Gakiya dam

  • Urasoe-Nishihara line - Urban monorail construction work (Underground structural work FY2015-NATM)

  • Superstructure work on the Onna-Minami BP1 bridge

  • Zukeyama dam construction

MARINE CIVIL ENGINEERING

  • Construction work on a breakwater at Iheya fishing port

  • Construction work on a breakwater at Maedomari port

  • Three projects featuring the construction of outer seawalls using redeposited dredge spoil C in Nakagusuku harbor

  • Construction of an offshore breakwater at Ishigaki’s new port

  • Substructure work (P5) on the Harbor road bridge (Urasoe line) at Naha port (Urasoe wharf area)

  • Reclamation work in the publicly owned water way at Urasoe wharf in Naha port (4-2 ward)

  • Superstructure work on the road(P8-P12)at Naha port (Tomari wharf area)

  • Shoreline protection work at the AS construction area for the installation of a new runway at Naha airport.

  • Caisson work on the offshore breakwater at Motobu port (FY April, 2014 Hokushin)