Lionel Cormier

Demeter Partners SA (Demeter Partners) is a French private equity firm which was founded in 2005 by Sophie Paturle-Guesnerot and Stéphane Villecroze and is majority-owned by the management team. Headquartered in Paris with an additional office in Madrid, Demeter Partners has partnerships with English, German and Spanish funds which are involved in their sectors and are also members of international networks of investors specialized in 'clean technologies'. The firm manages the Demeter Fund, sponsored by the Caisse des Dépôts (CDC Entreprises) and the Institut Français du Pétrole (French Petroleum Institute) for institutional investors including life insurance companies, health insurance companies, pension funds and sophisticated private investors.

Controlab SA designs, manufactures, and distributes civil and mechanical engineering equipment. It also offers technical studies, installation, formation, preventive maintenance, after-sales service, and metrology services. The company was founded in 1979 and is headquartered in Gennevilliers, France.

Qualium Investissement SASU is an Independent Private Equity firm founded in 1994. Qualium Investissement is headquartered in Paris.