Banco Santander is a mass-market retail and commercial bank headquartered in Boadilla del Monte near Madrid. At June 2026 it had about 185,000 employees, 182 million customers, 3.5 million shareholders and ~$2.2 trillion (EUR 1.95 trillion) in total assets. Its core markets are Spain, the UK, Portugal, Brazil, Mexico, Chile, Argentina and the US, after the 2026 exit from controlling Santander Bank Polska. The company is headquartered in Madrid, Spain.
Santander makes most of its money from net interest income: it gathers customer deposits (~$1.28 trillion (EUR 1.13 trillion) at June 2026) and lends them out as mortgages, consumer and auto loans, and business credit (~$1.3 trillion (EUR 1.15 trillion) of loans). In 2025 net interest income was ~$47.8 billion (EUR 42.3 billion) and net fee income ~$15.5 billion (EUR 13.7 billion). The group now runs five global businesses: Retail & Commercial Banking; Openbank (consumer finance and the digital bank, renamed from Digital Consumer Bank in Q1 2026); Corporate & Investment Banking; Wealth Management & Insurance; and Payments (Getnet and Ebury). Local banks are run as capital- and liquidity-self-sufficient subsidiaries.