Erste Group Bank AG is an Austrian financial service provider and one of the largest in Central and Eastern Europe, operating as a universal bank headquartered in Vienna. Founded in 1819 as the Erste österreichische Spar-Casse, it serves over 23 million customers across Austria, Czech Republic, Slovakia, Poland, Romania, Hungary, Croatia, and Serbia through more than 2,000 branches in seven countries. Its primary function is retail banking, encompassing lending, deposits, investment products, current accounts, and credit cards, alongside corporate advisory services, financing, public sector funding, and interbank operations. Erste Group Bank AG acts as the holding company for key subsidiaries like Erste Bank der oesterreichischen Sparkassen in Austria, Banca Comercială Română in Romania, Erste Bank Hungary, and recently acquired stakes in Santander Bank Polska. Notable features include the digital platform George, used by about 10 million customers, and social banking initiatives that promote financial inclusion, microfinance, and job creation, with over EUR 595 million in funding provided. As the central entity of the Austrian Savings Banks Group and directly supervised by the European Central Bank, it plays a pivotal role in regional financial stability and economic development.