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Antin Infrastructure Partners to sell European energy infrastructure platform Idex to IIF
Transactions - AUGUST 5, 2026

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Antin Infrastructure Partners to sell European energy infrastructure platform Idex to IIF

by Kali Arevalo

Antin Infrastructure Partners has entered into exclusive negotiations with the Infrastructure Investments Fund (IIF) for the sale of Idex, a France-based European independent energy infrastructure platform.

Idex delivers a full suite of decarbonization solutions to public entities, industrial, residential and tertiary customers. The company operates 60 district heating and cooling networks, 32 energy production plants and 13 energy-from-waste plants and services 18,000 buildings for their energy needs.

Idex has significantly transformed under Antin’s ownership to become one of the major players in the energy-transition space in France and Europe. The company grew its core business, expanded its product offering, penetrated new client verticals and entered new geographies, including Belgium, Lithuania and Italy. It also significantly strengthened its management and commercial capabilities to address more and bigger projects.

On the sustainability front, the sha

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