Penta-Ocean Construction Company Limited Email Format

ConstructionTokio, Japan1001-5000 Employees

Penta-Ocean Construction Company Limited is a major Japanese contractor specializing in marine works and land reclamation. The company traces its roots to Mizuno Gumi, established in 1896 in Hiroshima Prefecture, and adopted its current name in 1954. Headquartered in Tokyo, Japan, it maintains multiple offices across Asia and the Middle East and is listed on the Tokyo, Osaka, and Nagoya stock exchanges under the ticker 1893. Its project portfolio includes large-scale reclamation and infrastructure work, with notable assignments in Singapore such as Jurong Island, Marina Bay, Pasir Panjang Container Terminal, and Changi Airport reclamation, as well as the widening of the Suez Canal and the construction of the Suez Canal Bridge in Egypt. The company has also participated in major airport and harbor projects in Japan, among other developments worldwide. In March 2026, Penta-Ocean announced a collaboration with Bygging-Uddemann AB to carry out caisson production using a gantry on a floating dock in Kagoshima, southern Japan.

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