Definition: Santander is a multinational Spanish banking conglomerate, headquartered in Madrid, Spain. It operates through various subsidiaries including Banco Santander S.A., Santander Bank, and Santander Credicorp. The company provides financial services to individuals, businesses, and governments across Latin America, Europe, and the United States. Santander has over 10 million customers globally and is known for its innovative products such as online banking, mobile banking, and digital platforms.