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Unibanco was a Brazilian commercial bank founded in 1924 that became one of the country's largest privately controlled banking groups before merging with Banco Itaú in 2009.

Last updated August 26, 2026

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Overview

Unibanco was a Brazilian banking institution whose history began in 1924, when João Moreira Salles established Casa Bancária Moreira Salles in Poços de Caldas, Minas Gerais. The business was initially a local banking house, but it developed into a national financial group through regional consolidation, professional management, and expansion into the principal Brazilian financial center. In 1933, João Moreira Salles's son Walter Moreira Salles became an acting partner at the age of twenty-one, beginning the family's long association with the institution. The bank's first major growth phase came in 1940, when Banco Moreira Salles merged with three regional banks. The enlarged institution adopted the name União de Bancos Brasileiros, commonly shortened to Unibanco. The new identity expressed the group's ambition to operate beyond its original regional base and to combine several banking franchises under one Brazilian network. Over subsequent decades, the bank expanded geographically and eventually moved its headquarters to São Paulo, the country's leading financial and commercial center. Unibanco became a broad private-sector banking group serving retail customers, companies, and other institutional clients. Its activities included conventional deposit-taking and lending, branch banking, payments and card-related services, and other financial products associated with a large universal bank. The institution's scale and private ownership made it one of the most prominent Brazilian banking brands. It remained closely associated with the Moreira Salles family even though its shares were publicly traded. Walter Moreira Salles was not only the family's leading representative at the bank but also a major public figure who served as Brazil's finance minister and ambassador to the United States. A decisive turning point came in 1995 with the acquisition of Banco Nacional. Nacional had encountered severe financial problems during the banking stress that followed the early years of Brazil's Real Plan, when high inflation was being brought under control and the financial system was undergoing substantial restructuring. The transaction strengthened Unibanco's position and helped make it Brazil's third-largest privately owned bank, while also demonstrating the role of consolidation in the country's post-inflation banking market. After Walter Moreira Salles died in 2001, the Moreira Salles family's influence continued. His son Pedro Moreira Salles became chief executive officer and vice chairman of the board after 2006. Under this leadership, Unibanco remained a major independent Brazilian banking group, but the competitive and regulatory environment favored increasing scale. On November 2, 2008, Unibanco and Banco Itaú, then the second-largest Brazilian private banking group, announced plans to merge. The Central Bank of Brazil approved the transaction in late February 2009. The merger created Itaú Unibanco Holding S.A. and ended Unibanco as an independent banking company. During the integration, Unibanco branches were progressively converted to Itaú branches, with the process reaching completion by the end of 2010 according to the referenced account. The Unibanco name survived in the holding company's corporate designation, but Itaú became the dominant customer-facing banking brand. Unibanco is therefore a defunct bank as an independent brand, while its institutional history, assets, personnel, and family legacy form part of the history of the modern Itaú Unibanco group.

History

Unibanco originated in 1924 as Casa Bancária Moreira Salles, founded by João Moreira Salles in Poços de Caldas, Minas Gerais. The institution began as a local banking house and was later shaped by the participation of the founder's son, Walter Moreira Salles, who joined as an acting partner in 1933. In 1940, Banco Moreira Salles expanded through a combination with three regional banks. Following the consolidation, it adopted the name União de Bancos Brasileiros, shortened in common usage to Unibanco. This reorganization established the identity under which the institution would become a national Brazilian banking group. The bank subsequently expanded outside its original Minas Gerais base and moved its headquarters to São Paulo. Over time, it developed the activities expected of a large private universal bank, including branch banking, deposits, lending, payments, card services, and services for business and institutional customers. Its shares were listed on the São Paulo Stock Exchange, but the Moreira Salles family retained substantial control and remained central to the bank's governance and public identity. Unibanco's scale was reinforced by its 1995 acquisition of Banco Nacional. Nacional had suffered financial difficulties during the banking crisis associated with the early implementation of Brazil's Real Plan. That period brought major changes to the Brazilian financial system, including restructuring and liquidation of several institutions. The Nacional transaction strengthened Unibanco and contributed to its position as Brazil's third-largest privately owned bank. Walter Moreira Salles remained the family's principal figure until his death in 2001. He was also known nationally for public service as Brazil's finance minister and ambassador to the United States. After 2006, his son Pedro Moreira Salles served as Unibanco's chief executive officer and vice chairman of the board. On November 2, 2008, Unibanco and Banco Itaú announced a merger agreement. The Central Bank of Brazil approved the transaction in late February 2009. The combination produced Itaú Unibanco Holding S.A. and ended Unibanco's existence as an independent bank. Integration continued through the conversion of Unibanco branches to the Itaú brand, reportedly reaching completion by the end of 2010. Although the Unibanco name remained in the holding company's legal or corporate name, Itaú became the principal public-facing brand.

  • 2010

    Branch rebranding is completed

    [1]

    Unibanco agencies are converted to the Itaú identity as the integration of the two networks proceeds.

  • 2009

    Unibanco is merged into Itaú Unibanco

    [1]

    Brazil's Central Bank approves the transaction, creating Itaú Unibanco Holding S.A. and ending Unibanco's independence.

  • 2008

    Merger with Banco Itaú is announced

    [1]

    Unibanco and Banco Itaú announce plans to combine their Brazilian banking operations on November 2.

  • 2001

    Walter Moreira Salles dies

    [1]

    The long-standing family leader and prominent Brazilian banker and diplomat dies.

  • 1995

    Banco Nacional is acquired

    [1]

    Unibanco acquires Banco Nacional after Nacional experiences financial difficulties during the banking crisis surrounding the early Real Plan.

  • 1940

    Regional bank consolidation creates Unibanco

    [1]

    Banco Moreira Salles merges with three regional banks and adopts the name União de Bancos Brasileiros, commonly known as Unibanco.

  • 1933

    Walter Moreira Salles joins the family business

    [1]

    Walter Moreira Salles becomes an acting partner at the age of twenty-one.

  • 1924

    Casa Bancária Moreira Salles is founded

    [1]

    João Moreira Salles establishes the banking house in Poços de Caldas, Minas Gerais.

Products and positioning

A large Brazilian private-sector universal bank built through regional consolidation, national expansion, and family-controlled governance. In its later years, Unibanco competed as a major full-service bank serving retail, business, and institutional customers.

  • Consumer banking

    Retail banking

    Unibanco operated a broad retail banking franchise through branches and other customer channels. Its retail activities included ordinary banking relationships, deposits, payments, consumer credit, and related financial services. The bank's national expansion and later merger with Itaú reflected the importance of scale in serving Brazilian households across multiple regions.

  • Business banking

    Commercial and corporate banking

    The bank also served companies and institutional customers through lending, transaction banking, and other services associated with a large private-sector Brazilian bank. These activities complemented its consumer franchise and helped position Unibanco as a full-service financial group rather than a narrowly regional institution.

  • Payments and consumer finance

    Credit and payment services

    Credit, payment, and card-related services formed part of Unibanco's broader banking offering. The available reference material identifies these as typical activities of the institution's universal-banking model but does not provide a sufficiently detailed product chronology or individual product names.

Brand decisions

  • 2009

    Post-merger transition to the Itaú brandStrategy

    Background

    The newly combined group had to integrate two banking networks and establish a unified customer-facing identity.

    Action taken

    Unibanco agencies were progressively converted into Itaú agencies, while the Unibanco name was retained mainly in the holding company's corporate designation.

    Aftermath

    By the end of 2010, the Itaú name had become the principal banking brand and Unibanco no longer operated as an independent customer-facing bank.

  • 2008

    Merger agreement with Banco ItaúM&A

    Background

    Unibanco and Banco Itaú were major Brazilian private banking groups operating in a market where scale and consolidation were strategically important.

    Action taken

    The two groups announced plans to merge on November 2, 2008.

    Aftermath

    Following regulatory approval in 2009, the combination created Itaú Unibanco Holding S.A. and ended Unibanco as an independent bank.

  • 1995

    Acquisition of Banco NacionalM&A

    Background

    Banco Nacional had entered financial difficulty during the banking crisis accompanying the early years of Brazil's Real Plan, when the country's financial sector was undergoing major restructuring.

    Action taken

    Unibanco acquired Banco Nacional, expanding its scale and reinforcing its position among Brazil's leading privately owned banks.

    Aftermath

    The acquisition helped strengthen Unibanco's national franchise and contributed to its position as Brazil's third-largest privately owned bank.

Sources1 sources

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