JMU was created by a merger of two companies in 2013, Universal Shipbuilding and IHI Marine United, which were the leading companies in Japan’s shipbuilding industry. Both companies possessed outstanding design/development systems and impressive track records in actual ship construction. Taking full advantage of these high technological capabilities, JMU aims to strengthen the competitiveness of its 4 core business areas and improve its profit performance, thereby establishing a position as the top company in the shipbuilding industry and realizing a strategy for further growth.
In 2025 it was announced that Imbari Shipbuilding intended to increase their interest in JMU from 30% to 69%
