S-Bank is the first so-called "supermarket bank" in Finland with 776 employees (2022).

On 31 May 2023, Handelsbanken signed an agreement with S-Bank, Oma Savings Bank Plc (OmaSp) and Fennia Life Insurance Company Ltd. to sell the bank's Finnish retail banking, asset management and investment services businesses to S-Bank, its SME business to OmaSp and its life insurance business, including investment, pension and loan insurance, to Fennia.

After the closing S-Bank will become the fourth largest bank in the retail housing loans and deposits in the Finnish market.

[2] S-Bank 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.

No actual money laundering was found, but the problem was poor conformance to legal "know your customer" requirements.