In the United States, IT and retail behemoths top the ranks, while in Germany, the automotive and mechanical engineering industries remain central, and in France, luxury goods and energy businesses have always played important roles. In Italy, however, the concentration is even more evident: nine of the top twenty largest industrial and service corporations are in the energy and oil industry. At the top by revenue is Eni, with €88.8 billion in turnover in 2024. It is followed by Enel, with €73.9 billion, and GSE (Gestore dei Servizi Energetici), with €51.9 billion. Eni and Enel have a €14.9 billion gap, which confirms the oil group's revenue leadership. This lead is primarily due to the weight of its exploration and production activities, as well as its significant position in worldwide energy markets, both of which form the foundation of Eni's industrial strategy. Following the energy summit, large-scale manufacturing remains present, but in smaller numbers. Stellantis Europe finished fourth in 2024 with a turnover of €21.3 billion, followed by Leonardo with €17.8 billion and Prysmian with €17 billion.