Message from the President

For the future generations

Message from the President

Be sincere, Be creative.
We will contribute to the local communities by leaving a better living environment for future generations.

Since our founding in 1955, we have held this belief in our company motto, "Sincerity." We believe that a better living environment has to be safe, secure, functional, environmentally friendly, and enrich the hearts of the people who live there.

In order to realize the imagination and desires in our customer's heart, we think together with them, clarify their requests, and propose an accordingly creative design. We supervise and construct projects together with professionals in each field, and always aim to build better buildings.

In recent years, as social issues such as climate change and human rights have become apparent on a global level, considerations for sustainability, coexistence with society, and improvement of governance have become major prerequisites for the sustainable growth of a company. In addition to promoting management that takes these factors into consideration, we aim to work with pride every day so that each and every employee can engage in business activities with further heightened awareness of global environmental, social, and corporate sustainability.

To leave better buildings and living environments to the future generations.
That is our unchanging belief.

Yoshizawa NaotoPresident and Director
Yoshizawa Construction
October 2022

Company Profile

  • Company Name
    Yoshizawa Construction Co., Ltd.
  • President
    Yoshizawa Naoto
  • Location
    2085-1 Orihara, Yorii-machi, Osato-gun, Saitama 369-1234
    Tel. 048-581-3050
    Fax. 048-581-3053
  • Founded on
    March, 1955
  • Capital
    JPY 30 Million
  • Main Business
    ・General construction business
    (Construction and supervision of construction work, civil engineering work, demolition work, paving work, etc. )
    ・Real estate transaction business
    ・Any business incidental to the above
  • Permit
    Licensed by Saitama Prefectural Governor(TOKU-29)No. 5728
    (Construction work, Civil engineering work, Demolition work)

    Licensed by Saitama Prefectural Governor(PAN-29)No. 5728
    (Pavement industry, Scaffolding and civil engineering, Carpentry, Plumbing)

    Industrial waste collection and transportation license No. 01100179080
  • Registration
    Registered as a first-class architect office:Saitama prefectural governor registration(11)No. 363
  • License
    Real estate transaction business license:Saitama prefectural governor registration(1)No. 24865
  • Qualification holder
    First-class architect 2persons
    Second-class architect 1person
    First-class construction management engineer 2persons
    Second-class construction management engineer 1person
    First-class civil engineering construction management engineer 4persons
    Second-class civil engineering construction management engineer 2persons
    Registered second-class construction business accountant 1person
    Real Estate Notary 1person
  • Bank
    Saitama Resona Bank, Ltd. Yorii Branch
    The Musashino Bank, Ltd. Yorii Branch
    The Gunma Bank, Ltd. Fukaya Branch
    The Saitamaken Shinkin Bank. Yorii Branch
    Kumagaya shouko shinyoukumiai Yorii Branch



  • 1955
    Founder Yoshizawa Kenji establishes the company in Yorii, Saitama
  • 1967
    Reorganized as Yoshizawa lumber, Ltd
  • 1973
    Renamed Yoshizawa Construction Co., Ltd
  • 1973
    Increased capital to 10 million yen
  • 1976
    Increased capital to 20 million yen
  • 1979
    Increased capital to 30 million yen
  • 2002
    Yoshizawa Kenji Appointed Chairman
    Yoshizawa Naoto Appointed President and Director
  • 2015
    60th Anniversary of the company foundation
  • 2022
    Established Real Estate Division


Episode1Founder, Yoshizawa Kenji

In 1927, our founder Kenji Yoshizawa was born to a couple of local farmers in Orihara Village (now Yorii Town) in the northern part of Saitama Prefecture. He was the fourth son out of nine children.

When Kenji was three years old, he contracted measles. At that time, it was not common for children in this area to see a doctor even if they had measles, so Kenji was trying to recover from the disease only at home.

Unfortunately, his condition worsened. Eventually his life was saved, but Kenji was exposed to a high fever and lost most of his sight.
He could vaguely see light, moving objects, and silhouettes of people, but he could not distinguish small details. When he entered elementary school, he always sat in the front seat because he could not see the letters on the blackboard from the back seat.

However, by the time Kenji became a fourth grader he was yelled at by his new teacher, "Yoshizawa, why are you sitting in the front seat? Go to the back!" Kenji got angry, quit school and swore that he would never return again. Indeed, Kenji never resumed official schooling, showing at an early age that he had a strong personality. He would never pull back once he had made a decision.

The Yoshizawa family around 1940. Third from the left in the back row is Kenji Yoshizawa.


Kenji, who had reached the age at which any other child would graduate from elementary school, had decided to live and work at a chiropractic clinic run by a blind masseur in Tokyo. There, he wished to learn a job he could do with his own hands. Pretty much the old-fashioned apprenticeship way.

However, in addition to the masseur training, helping out with the daily life at the clinic was a tough job for Kenji. Not being able to write by himself, one day Kenji asked a senior apprentice to help him write a letter. It was addressed to his older brother, Yayoi:
- Brother Yayoi, I don't like this life anymore. I'll do whatever chores I am commanded if I am allowed to return home. So please let me come back.

Upon reading this, Yayoi rode his bicycle to pick up Kenji. The distance was about 100km. Considering the road conditions and the performance of bicycles at that time, it seems that it took them about 8 hours to run just one way.
After returning home, grateful Kenji continued to work without complaining, no matter how hard farming or household work was.

Episode3The days as Mountain Forester

At that time, in addition to farming, the Yoshizawa family also worked as a Mountain Forester undertaking the purchase and logging of forests. Kenji worked hard to learn the work of a forester under his eldest brother Fukuyoshi.

They bought trees still standing at vast forests, and the time available to judge the value of each tree was limited. Kenji, who had poor eyesight, was unable to judge the quality of a tree by its appearance. Kenji then developed the special ability to judge the value of the forest based on the feel of his hands, the sound of tapping, the sound of leaves rustling in the wind, and the atmosphere of the place.
In later years, Kenji told his son (now President of Yoshizawa Construction), “ A good tree has good leaves. So, the sound when the leaves sway in the wind in a good mountain forest is completely different from the sound of a mountain forest that is not.”

Episode4The fun of business

In addition to his work as a forester, Kenji's job was to collect bushes and firewood and sell them to roof tile factories in neighboring towns.

One day, Kenji was going around the many roof tile factories along the route indicated by his eldest brother, Fukuyoshi, selling at exactly the price he was told to. By the time he visited the last one, there was only a little firewood left. Seeing this, the wife of the roof tile maker said, "Oh no, is this the only one for today? I'm at a loss. Next time, please be the first to come to my house." It was at that moment when Kenji, only 14-15 years old, first realized the principle of the market economy called "supply and demand".

While men of the same generation who had received a solid education before and during the war were concerned about military conscription (and were in fact conscripted), Kenji, who escaped conscription for physical reasons, unexpectedly learned the fun of business. First hand, with his own experience.

In early 1954, Kenji got married. At the same time, he decided to leave his eldest brother, Fukuyoshi, and become independent. This year marks the founding of Yoshizawa Construction Industry. At the end of that year, his first son, Naoto (currently Yoshizawa Construction Co., Ltd. CEO) was born.

Kenji's wife Sumiko holding her eldest son, Naoto (in 1955)

Episode5The spirit of 'faithfulness'

After becoming independent, Kenji switched from working as a forester to becoming a lumber dealer. Then, in 1973 based on the know-how acquired while doing business with construction companies, we switched to the construction business.

This was the period of high economic growth in Japan. He began doing a lot of civil engineering work and building wooden houses.
As years passed and the company successfully grew, Kenji gradually lost his eyesight. Then, in his late 40s, Kenji became completely blind. Even so, he used his walking cane and came every day to visit his office, which was just a few minutes' walk from his home, and sat in the president's seat.

Ever since the times Kenji was a forester, for him, the most important thing in doing business was Sincerity. And even after he became a constructor, his spirit remained the same.

The management of Yoshizawa Construction Industry, founded by Kenji, was carried over to his eldest son, Naoto, and so continues to this day. Going forward, we will continuously adhere to our company motto, “Sincerity,” and always look to the future as we further develop our business.

During his time as a lumberman, his third son Yasuhiro sat on an auto tricycle (in 1967) Civil engineering workers (circa 1970)

Our SDGs

We regard Sustainable Development Goals ( SDGs ) as an important framework to leave a sustainable society for our children and are actively working on them. Here, we introduce our efforts to achieve the SDGs, dividing them into three categories: "Realizing a resilient society," "Realization of communities and societies where everyone can live safely and comfortably," and "Realization of a sustainable society."

Realizing a resilient society

As the risk of natural disasters such as earthquakes and heavy rains increases, it is necessary to protect our lives and businesses from those disasters. We aim to realize a safe, secure and resilient society through the construction of strong buildings and infrastructure.

  • Targeted Goals
  • Main Measures
    In addition to repairing works and construction of earthquake-resistant bridges and schools, we are contributing to the realization of resilient buildings and social infrastructure through the construction of erosion control dams and river improvement work. In addition, we signed counter-disaster agreements with local governments, etc., and in the event of a disaster respond promptly based on those agreements.
    • Bridge repair work
      (Tosui Bridge)
    • Debris dam construction
      (Sasazawa debris dam)
    • Conclusion of counter-disaster agreement
      (Saitama Prefecture, Yorii-machi)

Realization of communities and societies where everyone can live safely and comfortably

As various social issues such as global environmental destruction and super-aging society become apparent, there is a need to realize a society where everyone can live safely and comfortably. Through our business, we will contribute to the realization of a community where everyone can live a healthy and comfortable life.

  • Targeted Goals
  • Main Measures
    To promote the health of all employees, we provide regular health checkups. In addition, we are promoting the active participation of women, achieving 50% of female executives and 30% of architects (as of 2022), and encouraging male employees to take childcare leave. Furthermore, since our founder was a person with a disability, we promote the active participation of people with disabilities, regardless of age, gender, race, ethnicity, and other factors.
    • Ratio of female directors
    • Ratio of female architects
    • Regional cleanup and beautification activities (Saitama road support)

Realization of a sustainable society

As social problems such as the destruction of the global environment and marine pollution become apparent, it is necessary to take immediate measures to leave a rich earth to the next generations. In order to contribute to the realization of a sustainable society, we promote business activities that are sustainable and considerate of the global environment.

  • Targeted Goals
  • Main Measures
    Construction of septic tanks and preparation of sites for solar power generation facilities are fields in which Yoshizawa Construction excels, and we are actively working on them. We are also promoting waste reduction by reusing concrete, asphalt, etc. generated at construction sites.
    • Septic tank construction work
      (Terumo Corporation Kofu factory septic tank)
    • Solar power generation facility site preparation work
      (Kumagaya Town, Saitama)
    • Waste disposal facility construction work
      (Shibukawa disposal site)

About the Sustainable Development Goals

Sustainable Development Goals ( SDGs ) are goals shared by the international community aiming for a sustainable and better world by 2030, as described in the 2030 Agenda for Sustainable Development adopted at the United Nations Summit in 2015. is. It consists of 17 Goals and 169 Targets, and is expected to contribute not only from the government but also from all stakeholders, including private companies.