Yasaku Construction Industry Co., Ltd.

Founded in 1949. The founder was Katsuo Yamada.

The company was established in Koromo Town, Nishikamo District, Aichi Prefecture (present-day Takeocho, Toyota City). Company name: Yahagi Construction Industry Co., Ltd.

Company established in Koromo Town, Nishikamo County, Aichi Prefecture (present-day Takeocho, Toyota City)

Established company in Kamo-gun, Kamo-machi, Aichi Prefecture (now Takase-machi, Toyota City).

Company name: Yahagi Construction Industry Co., Ltd.

Relocation of headquarters office (currently Showa Town, Toyota City)

An asphalt plant was installed.

Registered with the Minister of Construction (Ha) No. 3278.

Opening of Nagoya branch.

The capital, which was 250,000 yen at the time of founding, increased to 10 million yen by the fiscal year ending September 1955, a 40‑fold increase compared to the founding period.

Capital, which stood at ¥250,000 at the time of the company's founding, increased fortyfold to ¥10 million by the fiscal year ending September 1955.

Capital increased to ¥10 million

The head office was relocated, and operations were transferred to the Nagoya Branch.

The company's founding period is defined as 1949–1964.

The company was established in Koromo Town, Nishikamo District, Aichi Prefecture (now Takeo-cho, Toyota City). The head office was later moved to its present location in Showa-cho, Toyota City.

Founder Katsuo Yamada became president and representative director, and the head office was moved to its present location in Showa-cho, Toyota City.

Within 18 years of its founding in 1949, sales exceeded ¥5 billion. The company expanded its business areas beyond construction to include real estate development and sales, and building management.

Yahagi Jisho Co., Ltd. was established.

Kokusai Kaihatsu Building Co., Ltd. (now Yahagi Building & Life Co., Ltd.) was established.

Within 18 years of its founding, sales exceeded ¥5 billion, and subsidiaries engaged in real estate development and sales and building management were established.

Opening of Tokyo branch.

YAHAGI's DNA, passed down since the company's founding

The Osaka Branch was opened; the company merged with Meitetsu Construction Co., Ltd.; and Yahagi Jisho Co., Ltd. and International Development Building Co., Ltd. (now Yahagi Building & Life Co., Ltd.) were established.

Establishment of Osaka branch.

Merged with Meitetsu Construction Co., Ltd.

Establishment of Yahagi Real Estate Co., Ltd. and International Development Building Co., Ltd. (now Yahagi Build & Life Co., Ltd.).

Establishment of Yawata Real Estate Co., Ltd.

Establishment of International Development Building (now Yawata Building & Life) Co., Ltd.

In 18 years since its founding in 1949, the company surpassed sales of 5 billion yen.

Yahagi Landscaping Co., Ltd. established

The head office was relocated to the International Development Building.

Yahagi Landscaping Co., Ltd. established

Establishment of Yahagi Green Co., Ltd.

Toyota Service Center began sales of trees and landscaping construction services

Yahagi Ryokka Co., Ltd. was established.

Establishment of Nanshin Takamori Development Co., Ltd.

Establishment of Nanshin Takamori Development Co., Ltd.

Minami-Shin Takamori Kaihatsu Co., Ltd. was established.

Establishment of Yahagi Housing Sales Co., Ltd.

Listing on the Second Section of the Nagoya Stock Exchange.

Establishment of Yahagi Housing Sales Co., Ltd.

Opening of Hiroshima branch.

Relocation of Tokyo branch to Yahagi Minato Building.

Commencement of sales of Yahagi Real Estate's condominium "Bambel Series".

Yahagi Housing Sales Co., Ltd. was established. The subdivision sales divisions for residential land and buildings were centralized, integrating the businesses previously handled by Yahagi Construction and Yahagi Real Estate.

Issued CHF 35 million in Swiss franc-denominated bonds with warrants, maturing in 1992

Death of Emperor Showa.

A 3% consumption tax was introduced.

Tokyo Branch relocated to the Yahagi Minato Building

New construction and relocation of the Tokyo branch.

Launch of the Banbelle series of condominiums by Yawata Real Estate.

Yawata Real Estate absorbed Yahagi Housing Sales in a merger.

Introduced a new corporate identity (announced a new symbol mark and slogan); head office relocated to the Aoi Center Building

Positioned the 40th anniversary of founding as "Second Founding" and introduced corporate identity.

Introduced CI (announced new symbol mark and slogan).

Relocated headquarters to Aoi Center Building.

The 40th anniversary of the company’s founding was positioned as a "second founding," and this occasion prompted the introduction of CI.

Opened the Tohoku Branch; Osaka Branch relocated to the Yahagi Temmabashi Building; promoted to the First Section of the Nagoya Stock Exchange; issued DM 100 million in Deutsche mark-denominated bonds with warrants, maturing in 1995

Establishment of Techno Support Co., Ltd.

Established Tohoku branch.

Osaka branch relocation (Yahagi Tenmabashi Building)

Promotion to First Section of Nagoya Stock Exchange

Issuance of 100 million German Marks maturity bonds with new share subscription rights in 1995

Issued ¥7 billion in First Series unsecured convertible bonds, maturing in 2001 (BBB ratings from the Japan Bond Research Institute and Japan Investors Service)

Listing on the First Section of the Tokyo Stock Exchange.

The 40th anniversary was positioned as the “Second Founding,” and a corporate identity (CI) initiative and corporate image overhaul were implemented. A new logo, corporate philosophy, and slogan were developed.

The head office was relocated to Aoi Center Building.

ISO 9002 certification obtained (Headquarters: Construction and Civil Engineering divisions).

Opening of Kyushu branch: ISO 9001 certification obtained (Headquarters: Construction division).

Opening of Kyushu branch

ISO 9001 certification obtained (Headquarters Construction Division)

ISO 9001 certification obtained (Tokyo and Osaka branch Construction divisions): ISO 9002 certification obtained (Tokyo and Osaka branch Civil Engineering divisions).

ISO 9001 certification obtained (Tokyo and Osaka branch Construction Division)

ISO 9002 certification obtained (Tokyo and Osaka branch Civil Engineering Division)

Established Techno Support Co., Ltd.; obtained ISO 14001 certification for the head office and the group of worksites under its management

Establishment of Techno Support Co., Ltd.

ISO 14001 certification obtained (Headquarters and its subordinate workshops)

Obtained ISO 14001 certification.

Techno Support Co., Ltd. was established. The Nagakute Equipment Center became independent and began leasing and renting construction materials and promoting the PANWALL method, a soil-nailed retaining wall construction method.

Expanded ISO 14001 certification company-wide; established Yahagi Road Co., Ltd.

Establishment of Yahagi Road Co., Ltd.

ISO 14001 certification expanded company-wide

To expand its paving business, Yahagi Construction’s paving division became independent and established Yahagi Road Co., Ltd. It also promoted Cool Pave, a water-retentive pavement.

Established Pita Column Co., Ltd.

Issued 1.5 billion yen convertible bonds with warrants on July 15, 2010.

Pita Column Co., Ltd. was established, specializing in seismic assessments and seismic consulting.

Established the Institute of Earthquake Engineering Technology (now the Engineering Center)

Establishment of Earthquake Engineering Technology Research Institute (now Engineering Center).

The Earthquake Engineering Technology Research Institute was established, featuring one of the largest research and development facilities in the Chubu region. It is equipped with full-scale test specimens and a shaking table.

A shaking table capable of generating vibrations equivalent to those of the Great Hanshin-Awaji Earthquake was introduced.

Established Pita Reform Co., Ltd. (renamed Wood Pita Co., Ltd. in April 2009)

Establishment of Pitariform Co., Ltd.

Development of the embankment reinforcement earth wall method "FILLWALL technique."

Renamed to Wood Pita Co., Ltd.

Changed the company name to "Woodpita Co., Ltd."

Name change to Wood Pita Co., Ltd.

The Wood Pita seismic reinforcement method for wooden homes was developed at the Earthquake Engineering Technology Research Institute, and Pita Reform Co., Ltd. was established to provide seismic reinforcement services. In 2013, its name was changed to Wood Pita Co., Ltd.

Establishment of Railway Technology Training Center.

Pita Column Co., Ltd. and Wood Pita Co., Ltd. merged; established the Railway Technology Training Center

Merger of Pita Column Co., Ltd. and Wood Pita Co., Ltd.

Establishment of Railway Technology Training Center

A training facility focused primarily on railway facilities was established to address labor shortages and the challenges of passing on technical expertise in the construction industry.

Establishment of Engineering Center.

The Earthquake Engineering Technology Training Center was reorganized and the Engineering Center was established. Construction of a research building, development of new technologies, and research using ICT and AI began.

Made Style Link Co., Ltd. a subsidiary; Techno Support Co., Ltd. and Pita Column Co., Ltd. merged

Techno Support Co., Ltd. absorbed Pita Column Co., Ltd.

Style Link Co., Ltd. became a subsidiary

Merger of Techno Support Co., Ltd. and Pita Column Co., Ltd.

Made Style Link Co., Ltd. a subsidiary.

The new era name “Reiwa” was announced. The consumption tax was raised from 8% to 10%.

Made Kowa Construction Co., Ltd. a subsidiary.

Yahagi Building & Life Co., Ltd. and Style Link Co., Ltd. merged

The invoice system was launched, and legislation concerning LGBT people was enacted.

Acquisition of Hokawa Construction Co., Ltd. as a subsidiary.

Made Kitahwa Construction Co., Ltd. a subsidiary.

Made Kaisho Co., Ltd. a subsidiary; transferred Yahagi Real Estate Co., Ltd.'s condominium development and sales business to Meitetsu City Development Co., Ltd.; transferred Yahagi Building & Life Co., Ltd.'s condominium management business to Meitetsu Community Life Co., Ltd.

Kaichan Co., Ltd. became a subsidiary

Transfer of Yawata Real Estate Co., Ltd.'s condominium development and sales business to Meitetsu Urban Development Co., Ltd.

Transfer of Yawata Build & Life Co., Ltd.'s condominium management business to Meitetsu Community Life Co., Ltd.