The Marquis Marc René de Montalembert created the Ruelle forge in 1751.
The company has followed changes in French policy and strategy and adapted to modern manufacturing techniques, which means that France has been able to cut the number of its weapons while maintaining the same level of performance.

The DCN site at Ruelle is a branch of the DCN group, the prime contractor of complete armed naval vessels from design to post-delivery maintenance. It is dedicated to designing and developing equipment for surface combatants and submarines in two mechanical, electronic and computer-related activity sectors.

Several of the equipment systems produced by DCN Naval Equipment are grouped into product ranges and sold in France or abroad (foreign sales represent 40% of its activity).

Weapon handling and launch systems
Helicopter safety and handling
Complete range of masts and shafting
Platform and gangway management systems
Wireless communication and location systems
Simulators

The workforce of DCN de Ruelle today stands at 800.