Creating a city to
support livelihoods For a new lifestyle and era of environment and energy,
We aim to realize a more comfortable
and affluent living for the community.
This involves gas and water infrastructure construction,building equipment,

home remodeling design,
and its construction.
We have the best sales force and construction team
making a wide range of contributions.

Providing a more comfortable
and enriched living environment through gas,plumbing,
and remodeling services.

We are developing lifestyle infrastructure businesses, including gas and water works, as well as remodeling services to provide a more comfortable living environment. As the core of the group of companies, we leverage the expertise we have cultivated over our more than 110-year history and have a strong presence as a leading gas construction company in the Tokai region. As a company rooted in the community, we support people's daily lives.

Developing a dispatch business that
leverages
our century-long human resource development expertise.

We are developing a temporary staffing business for the gas, water, electricity, and other lifestyle infrastructure industries. The greatest feature of this business is that we are able to train our own staff with knowledge, experience, and skills based on the know-how of our group company, Yamada Shokai Co. We can introduce and dispatch the most suitable personnel to meet the needs of our customers, from construction management to facility maintenance, inspection, sales, and clerical work.

We offer our customers peace of mind by utilizing reliable technology
to support a comfortable car life.

Kei-Y Auto Co., Ltd offers a variety of services, including safe and high-quality automobile maintenance such as vehicle inspections, as well as the sale, lease, and repair of automobile accessories.
Through our business partnership with Kyoei Tire Service (K-one), we aim to enhance our customers' car experience by providing reliable technology developed in the world of motorsports.

New civil engineering company established
for the growth and business expansion of the entire group.

We are a civil engineering company established in 2019 with the goal of offering comprehensive services. Our main areas of expertise include pipe work, civil engineering, water supply and drainage work, road paving, and water supply facility construction, primarily in the Nagoya area. Our ability to handle civil engineering work along with gas work requests has resulted in synergies that have driven growth and business expansion for the entire group.

Expert in electrical, HVAC, and telecommunications construction
Supporting every aspect of city infrastructure with “technology”.

We provide support for various settings, such as offices, factories, stores, and homes through the design and construction of electrical equipment, air conditioning equipment, and telecommunications work. We offer consulting services for the electrical and telecommunications industries, covering everything from planning and design to construction and regular maintenance.

Responsible for CAD operator duties with a focus on drafting to support design
and development work.

Established as Yamada Shokai Holding Group's first overseas subsidiary in Vietnam on April 1, 2020.

We provide architectural planning, design, supervision,
and consulting services.

We offer contracting and installation of building construction and equipment,
along with building renovation and maintenance services. Our focus is on architectural planning, design, supervision, and consulting services.

Providing safe, secure, and reliable facilities with meticulous attention to detail.
Flexible service for a variety of environments and scales.

We are a company that specializes in repairing and maintaining water environments and constructing new facilities. In recent years, we have focused on providing water supply and drainage repair services for condominiums, leveraging our extensive expertise to offer the best solutions to our customers. Please don't hesitate to reach out to us for any minor equipment issues you may encounter.

Next-generation electrical work that protects quality, safety, and the environment

"Focused on next-generation electrical work that is both safe for people and environmentally friendly, we are dedicated to ensuring safety, security, and high quality.
We are fully committed to providing our customers with products and services that we can genuinely stand behind, offering them peace of mind."

Protecting water. Protecting our livelihoods. Suido-ya (Plumber)

We provide design and installation services for water supply, drainage, sanitation, air conditioning, fire extinguishing, and disaster prevention equipment. Our goal is to ensure that our customers can always use the facilities comfortably.