CaixaBank, S.A., formerly Criteria CaixaCorp, is a Spanish multinational financial services company. CaixaBank is based in Valencia, with operations offices in Barcelona and Madrid. It is Spain's third-largest lender by market value, after Banco Santander and BBVA. CaixaBank has 5,397 branches to serve its 15.8 million customers, and has the most extensive branch network in the Spanish market. It is listed in the Bolsa de Madrid and is part of the IBEX 35. The company consists of the universal banking and insurance activities of the La Caixa group, as well as its holdings in the telecommunications company Telefónica and in several other financial institutions. CaixaBank has been designated as a 'Significant Institution' since European Banking Supervision entered into force in late 2014 and, as a consequence, is directly supervised by the European Central Bank. Wikipedia