The analysis of banks' business model responds to strategic as well as regulatory needs. It can also contribute to studying the effects of monetary policy, amongst other things. However, no harmonized definition exists in the literature. The authors therefore regularly use hierarchical cluster analysis to objectively classify banks according to their business model. These empirical, algorithm-based approaches rely heavily on balance sheet variables. Still, the distribution of bank sources of income and assets under management are also relevant variables. We therefore perform our own classification of European banks according to their business model using all these variables