三信建設工業 Company Profile

We face the ground directly and contribute to society through specialized foundation civil engineering techniques.

Since its founding in 1956, SANSIN Construction Industry has been a specialized contractor in unique foundation civil engineering related to ground stability, addressing various challenges in different business sectors with ground treatment technologies that support underground structures, stabilize mountains, and prevent liquefaction. Our company motto, derived from our name, emphasizes "valuing integrity, approaching matters with conviction, and prioritizing trust," while our management policy of "creating excellent, distinctive, and valuable products" has remained the foundation of our company since its inception.