Our story
Over a century of expertise.
Founded in Nantes in 1878 by the LEMER family, LEMER Foundry has established itself as a specialist in low-melting-point alloys. Today, it is one of the last remaining lead foundries in France and employs more than 60 people across two sites in the Nantes region.
Every day, its teams uphold the values that are the strength and foundation of the company :
trust, collaboration, and agile expertise.
An industrial heritage
A pioneer in the art of materials processing and a trailblazer in modern manufacturing methods and techniques, Louis-François LEMER paved the way for new applications for lead in France and abroad. His expertise left its mark on sectors as diverse as industry, nuclear power, security seals, and fishing.
More than five generations later, driven by research, experimentation, and innovation, LEMER Foundry has established itself as one of Europe's leaders in lead and its derivatives. It has tirelessly developed a multitude of processes that have become global benchmarks.
Expanding expertise : the DEJOIE adventure.
In 1988, the group expanded with the integration of DEJOIE, a company specializing in aluminum casting. DEJOIE continues to manufacture lead seals. Since 1949 — the year of its first contract with the French postal service — DEJOIE has also been producing aluminum mailboxes for French and foreign postal services (Morocco, Algeria, Qatar, Saudi Arabia, etc.), as well as for town halls, government agencies, and private individuals.
Some key dates
LEMER Foundry in numbers
- 60 employees
- € 10 million in annual revenue
- 1,000 tons of lead and alloys processed per year
- 2 production sites : Carquefou et Le Loroux-Bottereau
- From 1g to 50 tons : weight of parts produced