Abstract From 1780 until the Restoration, Jean-Baptiste Bureau has increased his business in various fields. The political events certainly disturbed it but didn't destroy it. He succeeded in managing for a while several ironworks in Burgundy, together with the trade of pig iron and wrough iron, a transport compagny on the Saone river and in sitting up, with some associates, the compagny of the Messageries nationales. Every time, he used to take care of the circumstances-as the abolition of the feudal tolls-and he adjusted himself to the particular features of a job-the revival of the plant of Le Creusot or the right management of the forest near Château-Chinon. He also withdraw, his assets just in time, from banking, in 1793 or from Le Cre...