Ceskoslovenska obchodni banka, a. s. is a universal bank operating in the Czech Republic. CSOB was established by the state in 1964 as a bank to provide foreign trade financing and convertible currency operations. It was privatized in June 1999 when KBC Bank, a member of Belgium’s KBC group, became the majority owner. CSOB took over Investicni a Postovni banka, a.s. in June 2000. After the purchase of CSOB shares from minority shareholders in June 2007, KBC Bank became the sole shareholder of CSOB. CSOB had been active in both Czech and Slovak markets until 2007; the Slovak branch was separated as of 1 January 2008.

CSOB is operating under two retail brands in the Czech Republic – CSOB and Postovni sporitelna (Postal Savings Bank – PSB); the latter is using the wide distribution network of Czech Post. To serve their clients, CSOB has 244 branches in the Czech Republic while PSB has 48 Financial Centers and approx. 3,330 post offices (as at 31 March 2009). Both CSOB and PSB also provide their services through various direct-banking channels. In addition to its own products, CSOB is distributing products and services of the whole CSOB group.