成幸利根 Company Profile

We are the top runner in underground construction!

Seiko Riko Co., Ltd. has participated in numerous large-scale projects as a specialist in underground and foundation construction, including the first competition facility for the Tokyo Olympics, the renovation of the Osaka Prefectural Office, and the recovery from the Tohoku earthquake disaster, contributing to the development of the country's social infrastructure. We are strengthening our efforts in the fields of environmental measures and disaster prevention measures towards the construction of a sustainable society. Please feel free to contact us if you have any requests.