| End Date | 2006-00-00 |
| Board member | yes |
| Notes | He was chairman of SGE (Société Générale d’Entreprises), which became Vinci in 2000, and was a member of its board of directors. In 1991, Michel ceased operational responsibilities in the SGE Group, which by then was a subsidiary of Compagnie Générale des Eaux. However, he remained a member of its board until 2006. |