bb.com.br:Banco do Brasil is The largest commercial bank in Brazil. Founded in 1808 and reformed twice, in 1854 and 1906, it is also the largest bank in Latin America, controlled by the government, with its head office in Brasilia.

The Bank of Brazil differs from other national commercial banks in that it is the agent of the Central Bank of Brazil, acting as the agent for the national treasury and for specific matters, such as keeping the reserves of commercial banks on behalf of the Central Bank and acting as the agent for the collection and deposit of taxes. It is also the agent of the federal government for deposits and state enterprises, foreign exchange brokers, and various government funds. The Bank also issues bonds and other marketable securities on behalf of the government and conducts all business of commercial banks.

Almost half of Brazil's foreign exchange business is carried out by the bank. The bank not only has the functions of a commercial bank, but also has the functions of a development bank and an investment bank. In addition, Brazil does not have a Ministry of Foreign Trade, but rather the Bank of Brazil has a Bureau of Foreign Trade, which is responsible for approving imports, exports and preferential export credit. The Bank of Brazil has become increasingly international, participating in multinational banking activities and participating in the European Bank of Brazil in London.