KUMAGAI GUMI - Key Persons


Eiji Morita

Job Titles:
  • Representative
Technos manufactures steel segments for shield tunnels and temporary construction machinery at its Toyokawa head office plant, as well as designing/producing/installing soil decontamination equipment and leasing for the ACEUP steel frame erection method. At the Tokyo office, the company constructs unique foundations using a "Quattro Cutter" horizontal multishaft rotating cutter from Germany, and is expanding its environmental business and renovation business in conjunction with Kumagai Gumi.

Hiroshi Shimura

Job Titles:
  • Representative
Technical Support provides outsourcing of office work to make administrative departments simpler and more efficient and thereby support the core business of the customer. It also provides customers with insurance plans for various requirements as an insurance agency that deals with property insurance and life insurance.

Kazuhisa Iwama

Job Titles:
  • Representative
  • Representative Director
K&E specializes in the building renovation business. It provides comprehensive production from planning and design to large-scale renovation work, including building survey/diagnosis, antiseismic diagnosis/antiseismic reinforcement, and the formulation of long-term renovation plans. K&E creates more comfortable spaces across the entire lifestyle of a building and provides construction services that satisfy customers across Japan.

Kenji Yamamoto

Job Titles:
  • Representative
  • Representative Director
Mainly involved in the business of research and development for the new age of roads, such as the production of asphalt mixture and the paving of roads, airports, ports, and bridges, etc. Gaeart thinks about craftsmanship from the perspective of environmentally-conscious technologies and hospitality, and works to enhance technical ability, response capability, and proposal ability while building relationships with customers based on trust, in order to contribute the creation of a safe, secure, and sustainable society.

Naoyuki Yamashita - President

Job Titles:
  • President
  • Representative
Techno-Space Creates mainly works on software services utilizing CAD and information systems to create construction plans, applications, and building plans for every stage of a project; from planning to actual construction work. The company is currently collaborating with Kumagai Gumi to promote new business expansion for BIM. It also provides universities and construction companies with education on basic and advanced CAD operations and knowledge of construction for everyone from beginners to those that are able to conduct on-site work. Techno-Space Creates will continue to back up all aspects of construction work.

Tadahiko Sinya

Job Titles:
  • Representative
Established in Taiwan in 1974 as a Kumagai Gumi group company. The company has established achievements in the top class of Japanese general contractors in Taiwan, including construction of semiconductor plants and golf courses. Taiwan Kumagai has constructed famous landmarks including the Tao Zhu Yin Yuan Tower, which resembles the structure of DNA, TAIPEI 101, which was the tallest building in the world, the Singuang Station building, which was a pioneering super high-rise building in Taiwan, and the Tachien Dam, which was the largest dam in the Orient at the time of construction.

Takayuki Aono

Job Titles:
  • Representative
A comprehensive technology trading company that provides products based on the results of the latest in technical development in the construction industry. FATEC provides not only products, but also the technology for utilizing those products to the fullest. It also currently conducts technical development regarding maintenance/update mainly in the construction industry and the development of self-walking assisting devices for the welfare/nursing industry. FATEC will continue to contribute to achieving a more comfortable environment and richer society via new products and technologies.

Yasunori Sakurano - President

Job Titles:
  • President