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Mello
Rubens Ometto Silveira Mello
Rank #2983
BRAZILEnergySugar, ethanol

Rubens Ometto Silveira Mello

Net Worth
$1.221B
-0.26% (24h)
Rubens Ometto Silveira Mello (born February 24, 1950) is a Brazilian billionaire businessman, primarily known for transforming Cosan S.A. into a global leader in sugarcane processing, ethanol production, and energy logistics. His wealth source is sugar and ethanol. Mello's career includes pivotal roles, such as CEO of Cosan. His leadership has been instrumental in expanding Cosan into a diversified conglomerate, including Raízen, Rumo, and other significant subsidiaries. As of 2024, his net worth is estimated at $1.5 billion, reflecting his influence in Brazil's agribusiness and energy sectors.

How to read Rubens Ometto Silveira Mello's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For Rubens Ometto Silveira Mello, we anchor the narrative to Sugar and Sugar, ethanol, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $1.221B alongside global rank #2983, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (BRAZIL) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life

Rubens Ometto Silveira Mello was born in Piracicaba, São Paulo, Brazil, on February 24, 1950. He comes from a family with deep roots in agriculture. His great-grandparents were Italian immigrants who started agricultural activities in the region. Ometto earned a degree in production engineering from the Polytechnic School of the University of São Paulo (USP) in 1972. He also holds a graduate degree in Finance from UNIMEP, and an MBA from Fundação Getulio Vargas (FGV) with an extension at Ohio University.

Rise to Success

Before joining Cosan, Ometto worked as an executive at Unibanco and then as a financial director at Grupo Votorantim. He entered the family business in the second half of the 1980s, taking on the presidency of Cosan. Under his leadership, Cosan expanded significantly, focusing on the energy and infrastructure sectors. Ometto led the company's growth, making Cosan the largest sugar and ethanol producer in Brazil and one of the largest in the world. In 2007, he became the world's first ethanol billionaire.

Key Business Strategies

Ometto's strategic vision transformed Cosan into a major player in the agribusiness and energy sectors. He expanded Cosan through acquisitions and partnerships, including a joint venture with Shell, Raízen. Cosan has grown to control major subsidiaries including Raízen (a joint venture with Shell focused on biofuels and sugar), Rumo (Latin America's largest rail operator), Compass (a natural gas distributor), and Moove (a lubricants producer), overseeing operations across agriculture, infrastructure, and renewable energy sectors that span over 1.3 million hectares of farmland.

Philanthropy

Rubens Ometto Silveira Mello is involved in philanthropic causes and serves on the board of Gerando Falcões and the Advisory Board of Instituto de Cidadania Empresarial (ICE). In 2022, he donated R$4 million to the NGO Gerando Falcões.

Career Timeline

2007

World's First Ethanol Billionaire

Became the first ethanol billionaire.

1986

President

Assumed the presidency of Cosan.

1974

Financial Director

Became the financial director of the Votorantim Group.

1971-1973

Executive

Worked as a corporate executive at Unibanco.

Philanthropic Impact

Community Development$0.8M

Gerando Falcões

Donated R$4 million in 2022 to the NGO, which works to combat hunger and transform vulnerable communities. (Conversion from BRL to USD approximate.)

Key Business Ventures & Holdings

CompanyStakeValue
Cosan S.A.53.51%$3.84M
Raízen S.A.$0.8M

Net Worth History

In-Depth Analysis

Early Life

Rubens Ometto Silveira Mello was born in Piracicaba, São Paulo, Brazil, on February 24, 1950. He comes from a family with deep roots in agriculture. His great-grandparents were Italian immigrants who started agricultural activities in the region. Ometto earned a degree in production engineering from the Polytechnic School of the University of São Paulo (USP) in 1972. He also holds a graduate degree in Finance from UNIMEP, and an MBA from Fundação Getulio Vargas (FGV) with an extension at Ohio University.

Rise to Success

Before joining Cosan, Ometto worked as an executive at Unibanco and then as a financial director at Grupo Votorantim. He entered the family business in the second half of the 1980s, taking on the presidency of Cosan. Under his leadership, Cosan expanded significantly, focusing on the energy and infrastructure sectors. Ometto led the company's growth, making Cosan the largest sugar and ethanol producer in Brazil and one of the largest in the world. In 2007, he became the world's first ethanol billionaire.

Key Business Strategies

Ometto's strategic vision transformed Cosan into a major player in the agribusiness and energy sectors. He expanded Cosan through acquisitions and partnerships, including a joint venture with Shell, Raízen. Cosan has grown to control major subsidiaries including Raízen (a joint venture with Shell focused on biofuels and sugar), Rumo (Latin America's largest rail operator), Compass (a natural gas distributor), and Moove (a lubricants producer), overseeing operations across agriculture, infrastructure, and renewable energy sectors that span over 1.3 million hectares of farmland.

Philanthropy

Rubens Ometto Silveira Mello is involved in philanthropic causes and serves on the board of Gerando Falcões and the Advisory Board of Instituto de Cidadania Empresarial (ICE). In 2022, he donated R$4 million to the NGO Gerando Falcões.

Data Sources & Methodology

Figures for Rubens Ometto Silveira Mello are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.