Over 70 year history in innovation and quality of our specialized civil engineering technologies

Since establishment in 1943, Raito Kogyo Co., Ltd. has expanded the business as a civil engineering specialist contractor with "Be Innovative" and "Fulfill Responsibility" as our mottos. We have developed and commercialized unique and original techniques in the areas of tunnel repair and maintenance, slope protection, ground improvement to address the particular needs of the age.

The construction market in Japan now undergoes structural changes due to the long-term reduction of government investment. We renew our determination to always create new values harmonious to nature and to service to the society by applying our unique technologies and rich experiences, particularly in the areas of Land Conservation, Infrastructure and Environment.  We appreciate your continued support and understanding.