Vinci,corporately styled VINCI,is a French concessions and construction company founded in 1899 as Société Générale d'Enterprises. It employs over 194,000 people,operates in more than 100 countries and is the largest construction company in the world by revenue. Vinci is listed on Euronext's Paris stock exchange and is a member of the Euro Stoxx 50 index. Its head office is in Rueil-Malmaison,in the western suburbs of Paris.