Penta-Ocean Construction Co., Ltd. (五洋建設株式会社) is a major Japanese construction firm. It specializes in marine works and land reclamation.[4]
It originated from Mizuno Gumi (水野組) in 1896 in Hiroshima Prefecture, and later renamed to the current name and capitalized in 1954.[5] It has offices in Tokyo, Singapore, Hong Kong, Indonesia, Malaysia, Egypt, Sri Lanka, India, Thailand, Vietnam and Dubai.[2]
The company is listed on the Tokyo and Nagoya Stock Exchange.[2]