3 sources · updated 22 Oct 2026
Couach was founded in 1897 by Albert Couach, first to make marine engines and then the first motorised pinasse of the Arcachon Bay. In 1918 his two sons took over the family firm. Guy Couach launched the "Arcoa" series range in the 1940s, and the Gujan-Mestras yard was built in 1962.
In the 1970s it developed patrol launches. Pierre Couach took over in 1985. The company was bought in 1996, listed on the stock exchange in 2000, then put into liquidation in 2009.
The brand was taken over, and the Nepteam company bought all the shares in 2011. In 2012 the yard launched its first 50-metre yacht, then delivered interceptor boats to Saudi Arabia in 2016-2018, and won contracts for sea-rescue boats and patrol vessels for French authorities.