Totetsu Kogyo 

Totetsu Kogyo Co., Ltd. is a Japanese enterprise specializing in a broad range of services, including railway infrastructure, civil engineering, property development, and sustainable environmental solutions. The company's railway operations encompass the renovation and reconstruction of existing tracks, as well as the creation of new rail lines for major projects like the Tohoku Shinkansen, serving both public and private sector clients. Its civil engineering division is responsible for the construction, modernization, and strengthening of vital public works, such as elevated and conventional bridges, tunnels, motorways, and multi-level intersections, alongside the installation of protective platform edge doors at railway stations. In the architectural field, Totetsu Kogyo undertakes the building and maintenance of a diverse portfolio of structures, including railway station facilities, residential apartments, corporate offices, hotels, retail outlets, and educational institutions. Moreover, the company delivers environmental expertise and technologies, developing solar power generation systems, implementing urban greening initiatives for buildings, managing wastewater and drainage systems, safely removing asbestos, and deploying energy-efficient air conditioning solutions. The company, founded in Tokyo, Japan, in 1943, maintains its headquarters in the city.