Olivier Francois Jacques Usureau

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.

SES Iberia Private Equity SA (SES Iberia) is a private equity investment firm located in Madrid, Spain. The firm was founded in 2004 by Espirito Santo Capital of Portugal and the Siparex Group in France. In addition to the office in Madrid, they are also present in Lisbon, Portugal, and Lyon, France. They are the investment advisers of the private equity fund SES Iberian Fund I. Their investors are institutional firms such as financial institutions, pension funds, insurance companies as well as asset management companies.