The company began in 1937 as Ateliers mécaniques de la Perrière, serving the repair needs of the fishing fleet around Lorient-Keroman. After the Second World War it moved beyond repair work into new construction, using Keroman slipway infrastructure and one of the wartime dom-bunkers as a prefabrication and assembly workshop. By the late 1950s and early 1960s the yard was associated with early French all-steel trawlers and rear-trawler designs, then broadened into aluminium construction under Jean Toullec's long management.
La Perrière's output was unusually varied for a regional yard. The BnF notice for François Toullec's Archives municipales de Lorient history lists steel and aluminium fishing vessels, passenger ships, barges, service craft, offshore-platform supply tugs, regional support ships, naval training ships, clearance-diver base ships, and pleasure craft. Ouest-France's retrospective says the yard built 117 vessels between 1946 and 1983 and employed about 370 people when Jean Toullec retired in 1981.
For defense readers, the important point is the yard's small naval and naval-support role rather than heavy warship construction. Its catalog connection is the French Navy Vulcain class, a set of clearance-diver support vessels whose lead ship was laid down at the Lorient yard in 1985 and entered service in 1986.
Naval support vesselsClearance-diver base shipsFishing vessels and rear trawlersPassenger ferries and island-service vesselsAluminium racing and pleasure craftFloating pontoons and harbor equipment
The company is defunct and has no surviving official website. Current sourcing is therefore based on municipal archives, the BnF catalogue record for the Lorient municipal history, regional reporting, French Navy context for the connected Vulcain class, and rights-clear image provenance. The FranceArchives page is used in the website field as an institutional archival landing page rather than a company-operated site.