In 2012, there were 80 companies in industrial production with more than 20 workers employing 8,300 persons and generating a turnover of more than 1,5 billion Euro.Today's Jena is not that compact as other cities in the region and urban planning is still a challenge.

Erfurt and, weimar, it forms the central metropolitan area of Thuringia with approximately 500,000 inhabitants, while the city itself has a population of about 110,000.On the one hand, the university suffered from new restrictions against its independence, but on the other hand, it consolidated the Nazi ideology, for example with a professorship of social anthropology (which sought to scientifically legitimize the Racial policy of Nazi Germany ).While the collections of antiques and minerals are public, the oriental coins are only accessed for research.

Further north at Auerstedt, both Davout and Bernadotte received orders to come to Napoleon's aid.In the Capitulation of Erfurt on 16 October, a large body of Prussian troops became prisoners with hardly a shot being fired.Another college is the Ernst-Abbe-Hochschule Jena, a University of Applied Sciences founded in 1991 which offers a combination of scientific training and its practical applications.