ERI Employee Directory
ConstructionÎle-de-France, France501-1000 Employees
ERI is a French construction group headquartered in Fontenay-sous-bois, Île-de-France, employing between 501 and 1000 people. The company focuses on energy performance of buildings, decarbonized mobility infrastructure, and physical and digital security, delivering work that spans the technical and architectural trades. It operates through six brands—ERI, ELSIA, CATELIA, TAC, HORUS, and AVENEL—and relies on twenty integrated trades. ERI serves infrastructure, commercial, residential, and industrial sectors with an end-to-end offering from study to realization and maintenance. The group conducts more than 1500 projects per year and holds ISO 9001, 14001, and 45001 certifications.
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