CaixaBank, S.A., formerly Criteria CaixaCorp, is a Spanish multinational financial services company. CaixaBank is based in Valencia, with operative offices in Madrid and Barcelona. 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, along with the group's stakes in the oil and gas firm Repsol, the telecommunications company Telefónica and its holdings in several other financial institutions. CaixaBank has been designated as a Significant Institution since the entry into force of European Banking Supervision in late 2014, and as a consequence is directly supervised by the European Central Bank. Wikipedia