MIRAIT One Corp. engages in the telecommunications engineering, electrical, civil engineering, and construction works. The company is headquartered in Koto-Ku, Tokyo-To and currently employs 17,115 full-time employees. The company went IPO on 2010-10-01. The firm operates through seven segments, including MIRAIT, MIRAIT Technologies, Lantrovision, TTK, Solcom and Shikokutsuken, Seibu Construction. The seven segments are involved in the information communication engineering, electrical equipment works and air condition maintenance business. The firm is also engaged in the communication infrastructure business, global business, and mobile network business.