Itaú Unibanco Holding S.A.
Diversified Banking and Financial ServicesFounded 2008- Updated June 2026
Reviewed by Swet Parvadiya
Last reviewed: June 2026
CorpDigest
Itaú Unibanco Holding S.A.
Company History
Founded 2008 in São Paulo, Brazil
Last reviewed: 2026-06-09T00:00:00Z · By Swet Parvadiya
1924, São Paulo: two banking institutions that would eventually merge into Itaú Unibanco were founded within years of each other — Banco Itaú tracing its lineage through the Alfredo Egydio Arruda Botelho founding, and Unibanco through the Mário Wallace Simonsen commercial banking network. Both operated independently through Brazil's 20th century economic transformation — industrialization, import substitution, the military government years, the hyperinflationary crises of the 1980s.
The 1994 implementation of the Plano Real — the currency stabilization program that ended decades of Brazilian hyperinflation — was the external event that fundamentally reshaped Brazilian banking. Banks that had built their business models on float income from hyperinflationary deposits suddenly needed to compete on credit quality, service, and efficiency. The institutions that adapted quickly captured the banking relationships of a newly stable middle class.
The 2013 expansion into Mexico marked the beginning of Latin American diversification beyond Brazil. The acquisition of Bank of America's Mexican operations in 2013 added corporate banking capability in a market where Itaú had no established presence. The 2015 acquisition of Citibank's retail operations in Brazil added branch coverage and client relationships that accelerated the domestic consolidation.
The merger of 2008 created a bank with total assets exceeding $400 billion and approximately 5,500 branches across Brazil — the physical infrastructure of a dominant retail banking franchise that digital competitors cannot replicate without decades of investment and regulatory approvals.
The founding merchants of Banco Itaú and Unibanco established the institutions in 1924, creating regional financial entities that would evolve into the undisputed apex of the Latin American financial sector. They approached the problem of economic development with a deep understanding of international trade and commercial strategy, recognizing that the industrial revolution would define the 20th century, and that a nation without its own sophisticated banking system was a nation without a future. Their early success was driven by their ability to navigate the complex political and logistical landscape of the Brazilian states, leveraging the technical expertise of their workforce to secure access to the vast trade routes of the Atlantic and the rapidly growing industrial centers of São Paulo and Rio Grande do Sul. The founders instilled a culture of long-term strategic planning, technical excellence, and operational discipline in the banks, creating a corporate DNA that remains visible in the bank’s willingness to invest in massive, long-lead-time infrastructure projects and its deep integration across the global financial value chain. Their visionary leadership and unwavering focus on economic development laid the foundation for a century of growth and adaptation, transforming regional lenders into a global financial powerhouse.
A group of visionary merchants and financiers establish Banco Itaú in Rio Grande do Sul and Unibanco in São Paulo, initiating the construction of a unified, reliable financial network across the Brazilian states.
The bank successfully navigates the hyperinflation of the 1980s and 1990s by adapting to the implementation of the Plano Real, which stabilizes the Brazilian currency and establishes the legal framework for the modern banking sector.
Banco Itaú and Unibanco execute a landmark, $15 billion merger of equals to form Itaú Unibanco, creating the largest financial institution in the Southern Hemisphere and establishing the foundation for its modern, diversified financial services platform.
The bank acquires the Mexican banking operations of Bank of America, instantly establishing a dominant position in the affluent Mexican market and initiating a massive, multi-decade expansion strategy in the Latin American wealth management sector.
The bank acquires Citibank's retail banking operations in Brazil, instantly scaling its domestic retail footprint and adding millions of high-value customer accounts to its roster.
The bank completes its massive digital transformation initiative, processing over 90 percent of all customer transactions through its mobile and internet banking channels, driving down the cost-to-income ratio to industry-leading levels.
The bank acquires Banco Banex in Chile, instantly establishing a dominant position in the affluent Chilean market and expanding its Latin American wealth management footprint.
The bank successfully integrates the premium wealth platforms acquired in Mexico and Chile with the broader Itaú wealth management network, generating record fee-based revenues and solidifying its position as the leading asset gatherer in Latin America.
Milton Malzoni Filho assumes the role of CEO following the tenure of Candido Bracher, initiating a comprehensive strategic focus on digital innovation, Latin American expansion, and the execution of the bank's massive, multi-billion-dollar capital allocation framework.
The bank reports $64.2 billion in consolidated revenues and $18.4 billion in net income, while continuing its massive capital deployment into Latin American wealth management and advanced digital infrastructure, solidifying its position as the undisputed apex of the Latin American financial sector.
The bank acquired Citibank's retail banking operations in Brazil to instantly scale its domestic retail footprint and add millions of high-value customer accounts to its roster, fundamentally transforming the bank’s Brazilian revenue mix to capture a larger share of the mass-market retail banking sector.
The bank acquired the Mexican banking operations of Bank of America to instantly establish a dominant position in the affluent Mexican market and initiate a massive, multi-decade expansion strategy in the Latin American wealth management sector.
The bank acquired Banco Banex in Chile to instantly establish a dominant position in the affluent Chilean market and expand its Latin American wealth management footprint, diversifying its geographic revenue base and capturing the high-net-worth advisory market.
Banco Itaú began in 1945 as Banco Central de Crédito in São Paulo and expanded through decades of mergers, becoming Banco Federal Itaú in 1964. By the 2000s it had grown into one of Brazil's two largest private banks, setting the stage for the 2008 combination that formed Itaú Unibanco.
During Brazil's hyperinflation of the 1980s and early 1990s, when annual inflation at times exceeded 1,000%, Brazilian banks earned heavily from float on rapidly devaluing money. The 1994 Plano Real stabilization ended that windfall and forced Itaú to rebuild its model around lending, credit cards and fee income.
Itaú launched iti, a free digital payments wallet, in 2019 to court lower-income and younger users against fintech challengers. The pivot gained urgency after Brazil's central bank rolled out the PIX instant-payment system in November 2020, which quickly became the dominant retail payment method.
The 2008 union created Latin America's largest private-sector bank, which later served roughly 130 million clients across Brazil and neighboring countries. The combined group ran more than 4,500 branches and eventually pushed over 90% of its transactions through digital channels.