Effy
FranceWho owns Effy?
Effy is a French ClimateTech company, currently owned by Felix Capital since 2023 and Montefiore Investment. It changed hands in 2019, when Starquest sold.
Hand-verified · updated 2026-09-30
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- ·Co-held by Montefiore Investment and Felix Capital since 2022.
- ·Best return: 19.0x MOIC by Starquest (2019 exit).
Ownership history
3 ownership periods · co-invest detected
Starquest sold Effy to ENGIE in 2019 after 5 years.
More from Starquest
Other portfolio companies in the same fund.
More PE-backed in ClimateTech
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SwitzerlandQuestions
Who owns Effy?
Effy is currently owned by Felix Capital and Montefiore Investment, through Starquest, since 2023.
When did Felix Capital and 1 other acquire Effy?
Felix Capital and 1 other acquired Effy in 2023.
Who did Effy sell to?
Starquest sold Effy to ENGIE in 2019 (Trade Sale), 19.0x return.
Who has owned Effy over time?
Effy has been through 3 private-equity ownership periods: Starquest · via Starquest Legacy · 2014–2019 · sold to ENGIE · (Trade Sale) · 19.0x; Montefiore Investment · via Starquest · since 2022; Felix Capital · via Felix Capital Fund IV · since 2023.