The following list of banks in Belgium is to be understood within the framework of the European single market and European banking union, which means that the Belgian banking system is more open to cross-border banking operations than peers outside of the EU.
European banking supervision distinguishes between significant institutions (SIs) and less significant institutions (LSIs), with SI/LSI designations updated regularly by the European Central Bank (ECB). Significant institutions are directly supervised by the ECB using joint supervisory teams that involve the national competent authorities (NCAs) of individual participating countries. Less significant institutions are supervised by the relevant NCA on a day-to-day basis, under the supervisory oversight of the ECB. [1] In Belgium's case, the NCA is the National Bank of Belgium. [2]
As of 1 September 2025, the list of supervised institutions maintained by the ECB included no Slovak banking groups as SIs. [3] Instead, banking groups based in other euro-area countries have significant operations in the country. A study published in 2024 assessed that the largest banking group by assets in Slovakia (as opposed to total consolidated assets) at end-2023 was Erste Group (€26 billion, via Slovenská Sporiteľňa) closely followed by Intesa Sanpaolo (€24 billion, via Všeobecná Úverová Banka), then Raiffeisen Bank International] (€22 billion, via Tatra Banka and Raiffeisenbank Slovakia ), and KBC (€15 billion, via ČSOB). [4] : 28–29 Other euro-area banks that operate in Slovakia include Commerzbank (via mBank Slovakia ), Société Générale (via Komerční Banka Bratislava), and UniCredit (via UniCredit Bank Czech Republic and Slovakia). [3]
As of 1 September 2025, the ECB's list of supervised institutions included nine Slovak LSIs, of which the following three were designated by the ECB as "high-impact" on the basis of several criteria including size: [3]
The other six Slovak LSIs were:
The National Bank of Slovakia and EXIMBANKA SR are public-sector credit institutions that do not hold a banking license under EU law.
A few former Slovak banks, defined as having been headquartered in the present-day territory of Slolvakia, are documented on Wikipedia. They are listed below in chronological order of establishment.