Founded in 1952, this is the oldest company in the group. Representing the leading brands, its activity focuses on the sale of materials for construction, hardware, bathrooms, kitchens and DIY.

The company operates under the RIBA brand. Materials Riba is also a member of the OPTIMUS hardware cooperative.

The company has obtained has obtainedISO 9001, ISO 14001 and ISO 45001, certification, verified by the ICDQ.