Private company

EFFY

Logo: effy.fr4

EFFY is a French company specialising in energy efficiency and energy renovation work.1 It was founded in 2008 by Frédéric Utzmann.1 It is headquartered in 8th arrondissement of Paris.1 It employed 200 people in 2026.1

Effy est une entreprise française spécialisée dans la rénovation énergétique des logements. Fondée en 2008 par Frédéric Utzmann et Édouard Jounet sous le nom CertiNergy, elle développe des services liés à l’amélioration de la performance énergétique des bâtiments.2 From the French Wikipedia, CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Nov 19, 2008Founded1
  • Industryvarious specialized, scientific and technical activities1
  • Headquarters8th arrondissement of Paris, France1
  • Websitewww.effy.fr
  • Legal formsimplified joint-stock company1
  • LEI9695003NI15F988ICS293
  • StatusActive3
  • LEI statusLapsed (not renewed)3
  • Registered address92 AVENUE DES CHAMPS ELYSEES, 75008 Paris, France3
  • Registered withNational Institute of Statistics and Economic Studies, 5093024693

Corporate structure

EFFY is part of a group headed by QUEST INVESTISSEMENT S.À R.L.. 2 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0). Each entity in the chart links to its source.

The story

Founded by Frédéric Utzmann on Nov 19, 2008.1

Leadership

Who has led EFFY, and when. Pick a name to see everywhere that person has worked.

Subsidiaries and ownership

Parent company (GLEIF)

Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record.

Employees over time

  • 20262001

Timeline

  1. Nov 11, 2011Parent Directly consolidated by QUEST INVESTISSEMENT S.À R.L.3
  2. Nov 19, 2008Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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    Company websiteEFFY logo