Idex

About

Founded in 1963, Idex is a private headquartered in Boulogne-Billancourt, France with approximately 5000+ employees specializing in Biomass, Geothermal, Solar.

Idex is France's leading operator in local low-carbon energy infrastructure, with approximately 6,400 employees and 2.1 billion euros in annual revenue (2025). The company operates 83 district heating and cooling networks and 25 energy production facilities. Idex specializes in transforming local resources—including municipal waste, biomass, geothermal energy, solar power, and industrial waste heat—into thermal and electrical energy distributed through district heating/cooling networks and building energy systems. The company provides an integrated value chain spanning development, engineering, financing, construction, and operations of renewable energy infrastructure. With expertise in waste valorization, district heating networks, industrial energy solutions, and building energy performance optimization, Idex avoids approximately 900,000 tonnes of CO₂ annually. Idex became a mission-driven company in 2025, committing to positive environmental and social impact. The company serves municipalities, social housing providers, industrial clients, and healthcare facilities across France.

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Sustainability