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Founded: 1965 (Showa 40).
Established: 1965 (Showa 40).
In April 1965, Otani Construction Co., Ltd. was established at 1 Jūjisho-mae-cho, Himeji City, Hyōgo Prefecture, with a capital of 1.5 million yen, to undertake land reclamation for private residential use and construction and leisure facilities.
Established Otani Construction Co., Ltd. with a capital of 1.5 million yen at 1 Juyoshimae-cho, Himeji City, Hyogo Prefecture, for the purpose of preparing land for private residential use and construction and leisure facility land.
In July 1965, obtained the Hyōgo Prefecture Governor's construction business registration No. 4852 (civil engineering, construction).
Hyogo Prefecture Governor's registration of construction business No. 4852 (civil engineering, construction).
In March 1972, obtained registration as a Class 1 architectural firm (Hyōgo Prefecture Governor's registration No. 359).
In March 1972, opened an Osaka office (now Osaka branch).
Registered as a Level 1 Architect Office (Hyogo Prefecture Governor Registration (T) No. 359)
Opened Osaka Office (now Osaka Branch)
In May 1973, obtained the Hyōgo Prefecture Governor's construction business permit No. 6447 (civil engineering, construction, paving, landscaping, water facilities).
Construction business Hyogo Prefecture Governor's Permit (Special-48) No. 6447 (Civil engineering, construction, paving, landscaping, water facilities)
In September 1973, obtained the real estate transaction business license (Hyōgo Prefecture Governor's license No. 6267).
Obtained Real Estate Brokerage License (Hyogo Prefecture Governor No. 6267)
In September 1974, obtained the Minister of Construction's permit No. 4947 (civil engineering, construction, paving, landscaping, water facilities).
Construction Minister's Permit (Special-49) No. 4947 (Civil engineering, construction, paving, landscaping, water facilities)
In March 1978, moved headquarters to 90 Tobori, Himeji City.
Relocated headquarters to 90 Tohori, Himeji City
In October 1986, established a subsidiary, Shindai Construction Co., Ltd., with a capital of 20 million yen, to secure civil engineering contracts with government offices in Kobe City.
Established subsidiary Shindai Construction Co., Ltd. in Kobe City with capital of 20 million yen to secure small to medium government civil engineering contracts in Kobe City
In October 1987, moved headquarters to 71 Kōjō, Himeji City (current address: 92-1 Kōjō).
Relocated headquarters to 71 Kojyo, Himeji City (current address: 92 Kojyo 1-chome)
In September 1990, opened the Fukuyama branch (now Hiroshima branch).
Opened Fukuyama Branch (now Hiroshima Branch)
Opened the Kyoto office (now Kyoto branch) in February 1994.
Opened Kyoto Office (now Kyoto Branch)
Opened the Nagoya branch in May 1996.
Opened Nagoya Branch
Obtained ISO 9002 (now ISO 9001) certification for quality management and assurance in December 1997.
Obtained ISO 9002 (now ISO 9001) certification for quality management and assurance
Obtained additional permission No. 4947 (Special-12) from the Minister of Construction in September 2000 for demolition, earthworks, and shuntetsu.
Obtained additional Minister of Construction approval (Special-12) No. 4947 (tobito, earthworks, shunsetsu)
Changed the company name to Noback Co., Ltd. in August 2003.
Changed company name to Noback Co., Ltd.
In September 2003, received the transfer of civil engineering and construction business operations from Marubeni Construction Co., Ltd., and opened the Hokkaido branch (closed September 2009), Tohoku branch, Niigata branch (closed May 2010), Tokyo headquarters, Yokohama branch, Shikoku office (now Shikoku branch), and Kyushu branch. Took over construction material recycling and snow removal businesses in the Hokkaido area.
Acquired sales of civil engineering and construction business from Marubeni Construction Co., Ltd., and opened Hokkaido Branch (closed September 2009), Tohoku Branch, Niigata Branch (closed May 2010), Tokyo Headquarters, Yokohama Branch, Shikoku Office (now Shikoku Branch), Kyushu Branch. Took over construction material recycling and snow removal business in Hokkaido area.
Addition of license from the Minister of Land, Infrastructure, Transport and Tourism (Special-15) No. 4947 (Steel Structures)
In December 2004, obtained additional permission No. 4947 (Special-16) from the Minister of Land, Infrastructure, Transport and Tourism for pipe and machinery installation, and discontinued construction material recycling and snow removal businesses in the Hokkaido area.
Obtained additional Minister of Land, Infrastructure, Transport and Tourism approval (Special-16) No. 4947 (management, machinery installation). Real estate broker (Minister of Land, Infrastructure, Transport and Tourism license No. 6975). Discontinued construction material recycling and snow removal business in Hokkaido area.
In October 2005, transferred all shares of Sindai Construction Co., Ltd., and became a non-subcompany.
Transferred all shares of Shindai Construction Co., Ltd. and made it non-subcompany
Obtained ISO 14001 certification for environmental management in November 2010.
Obtained ISO 14001 certification for environmental management
Selected as a 'Regional Future Leading Company' by the Ministry of Economy, Trade and Industry in December 2018.
Selected as 'Regional Future Leading Company' by the Ministry of Economy, Trade and Industry
Obtained additional permission No. 4947 (Special-30) from the Minister of Land, Infrastructure, Transport and Tourism for demolition in March 2019.
Addition of license from the Minister of Land, Infrastructure, Transport and Tourism (Special-30) No. 4947 (Dismantling)
Obtained additional permission No. 4947 (Special-1) from the Minister of Land, Infrastructure, Transport and Tourism for electrical work in October 2019.
Addition of license from the Minister of Land, Infrastructure, Transport and Tourism (Special-1) No. 4947 (Electricity)
Listed on the Second Section of the Tokyo Stock Exchange in March 2022.
Listed on the Second Section of the Tokyo Stock Exchange
Moved to the Standard market following the Tokyo Stock Exchange market reorganization in April 2022.
Moved to the Standard Market following the Tokyo Stock Exchange market reorganization
Acquired all shares of TOMTEN Co., Ltd. and made it a subsidiary in February 2025.
Acquired all shares of TOMTEN Co., Ltd. and made it a subsidiary
Obtained ISO 45001 certification for occupational health and safety in August 2025.
ISO 45001 certification obtained for occupational health and safety
On October 2, 2026, at a construction site in Himeji City, Hyogo Prefecture, we held the 3rd W-View Patrol conducted by female technical staff. We examined safety, working conditions, locker and restroom facilities, and work styles. Afterward, we exchanged opinions on work-related concerns, innovations, and best practices from other sites. We will continue to work toward creating a workplace environment where everyone can work safely and comfortably.
Novac Co., Ltd. has signed a sponsorship agreement with the Kindai University Athletic Association Lacrosse Club. Novac will support the team’s ambitions and contribute to community revitalization through sport and the development of the next generation. The company shares the club’s activities and goals and is deepening its partnership.
Novac Co., Ltd. received the Kurumin certification for meeting standards as a general employer on July 29, 2026. The company works to create a secure workplace for employees and will continue promoting diverse work styles and support for balancing work and family.
Noback Corporation donated mesh cases to new elementary school students in Himeji City as part of an initiative to support school life.
In March 2026, the second W-View patrol was held at a construction site in Setagaya Ward, Tokyo, to confirm safety and work environment and exchange opinions.
NoBack Inc. will become the gold sponsor of the Himeji Eagles for the 2026 season, aiming to support the team and revitalize the local community.
Noback Corporation conducts on-site patrols by female technical staff and is working to improve safety and the workplace environment.
The name of the new office building has been decided as "ENGAGE PLACE HIMEJI," and the rental office recruitment site has been launched.
Noback Co., Ltd. will begin airing its new CM series featuring Koichi Heido and Aiki Kuribayashi starting October 13, 2025, depicting Noha-kun's activities at construction sites.
Noback Inc. features construction achievements and employee interviews in the "Job Book" supported by the Himeji City Board of Education, helping to expand the dreams and future options of local children.