IDEX
FranceWho owns IDEX?
IDEX is a French ClimateTech company, now owned by Cube Infrastructure and Antin Infrastructure Partners, which acquired it in 2011 from IK Partners and Cèdre Capital.
Hand-verified · updated 2026-09-30
Open JSON · CC-BY
Key facts
- ·Held by Antin Infrastructure Partners since 2018 (8Y hold).
- ·Average hold across 2 realized cycles: 5 years.
Ownership history
3 ownership periods · co-invest detected · 2 lenders on file
IK Partners sold Idex to Cube Infrastructure in 2011 after 7 years.
Cèdre Capital sold Idex to Cube Infrastructure in 2011 after 3 years.
More from Antin Infrastructure Partners Fund III
Other portfolio companies in the same fund.
UK
Spain
US
NorwayMore PE-backed in ClimateTech
Comparable climatetech deals from other GPs.
SwitzerlandQuestions
Who owns IDEX?
IDEX is now owned by Cube Infrastructure and Antin Infrastructure Partners, which acquired it in 2011 from IK Partners and Cèdre Capital.
When did Cube Infrastructure and 1 other acquire IDEX?
Cube Infrastructure and 1 other acquired IDEX in 2011, buying from IK Partners and Cèdre Capital.
Who did IDEX sell to?
IK Partners and Cèdre Capital sold IDEX to Cube Infrastructure in 2011 (Secondary).
Who has owned IDEX over time?
IDEX has been through 5 private-equity ownership periods: IK Partners · via IK 2000 · 2004–2011 · sold to Cube Infrastructure · (Secondary); Cèdre Capital · via Cèdre Capital Evergreen · 2008–2011 · sold to Cube Infrastructure · (Secondary); Antin Infrastructure Partners · via Antin Infrastructure Partners Fund III · since 2018; Infranity · via Enhanced Return Debt Fund · since 2023; CIC Private Debt · via CIC Debt Fund 4 · since 2024.