![Ralph Gustavo Rosenberg Whitaker Carneiro](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Fortune : 3 M $ au 31/05/2026
Ralph Gustavo Rosenberg Whitaker Carneiro is the founder of Perfin Infra Administração de Recursos Ltda., founded in 2007, where the title held is Chief Investment Officer.
Mr. Rosenberg Whitaker Carneiro is the founder of Perfin Administração de Recursos Ltda., founded in 2007, holding the title of Founding Partner.
Current jobs include Director at EDTE - Empresa Diamantina de Transmissao de Energia SA, TSM - Transmissora Serra da Mantiqueira SA, Mori Energia Holding SA, Gemini Energy SA, Comerc Energia SA, Companhia Riograndense de Saneamento - Corsan, and Cosan SA since 2025.
Former jobs include Director at Alupar Investimento SA and Casa dos Ventos Energias Renováveis SA. Education includes undergraduate studies at Fundação Escola de Comércio Álvares Penteado.
| Société | Date | Nombre d'actions | Valorisation | Date de valorisation |
|---|---|---|---|---|
COSAN S.A. 0,11% | 18/03/2026 | 4 251 582 ( 0,11% ) | 3 M $ | 31/05/2026 |
| Sociétés | Poste | Début |
|---|---|---|
| COMERC ENERGIA S.A. | Directeur/Membre du Conseil | - |
| COSAN S.A. | Directeur/Membre du Conseil | 19/11/2025 |
Perfin Administração de Recursos Ltda.
 Perfin Administração de Recursos Ltda. Investment ManagersFinance Perfin is an active, fundamental research-intensive manager which aims to provide consistent returns and preserve capital over the long-term, based on fundamental analysis of assets, strict risk controls, transparency in their processes and ethical principles. The firm constructs concentrated, high conviction portfolios based on quantitative and qualitative analysis. They continuously monitor and analyze invested assets and manage risk to identify the optimal relationship between risk and return of each investment. | Directeur Général | 01/01/2007 |
Perfin Administração de Recursos Ltda. /Private Equity/
 Perfin Administração de Recursos Ltda. /Private Equity/ Investment ManagersFinance Functions as an alternative investment manager | Fondateur | 01/09/2007 |
Mori Energia Holding SA
 Mori Energia Holding SA Financial ConglomeratesFinance Functions as an investment holding company | Directeur/Membre du Conseil | - |
Gemini Energy SA
 Gemini Energy SA Electric UtilitiesUtilities Operates an energy transmission company | Directeur/Membre du Conseil | - |
TSM - Transmissora Serra da Mantiqueira SA
 TSM - Transmissora Serra da Mantiqueira SA Alternative Power GenerationUtilities Provides electric utility services | Directeur/Membre du Conseil | - |
EDTE - Empresa Diamantina de Transmissao de Energia SA
 EDTE - Empresa Diamantina de Transmissao de Energia SA Electric UtilitiesUtilities Provides electric services | Directeur/Membre du Conseil | - |
Cia Riograndense de Saneamento (Corsan)
 Cia Riograndense de Saneamento (Corsan) Engineering & ConstructionIndustrial Services Provides constructions, operations, exploration and expansion of public drinking water supply and sewage services | Directeur/Membre du Conseil | - |
| Sociétés | Poste | Fin |
|---|---|---|
| ░░░░░░ ░░░░░░░░░░░░ ░░░░ | ░░░░░░░░░░░░░░░░ ░░ ░░░░░░░ | - |
| ░░░░ ░░░ ░░░░░░ ░░░░░░░░ ░░░░░░░░░░░ ░░ | ░░░░░░░░░░░░░░░░ ░░ ░░░░░░░ | - |
Actives
Inactives
Sociétés cotées
Entreprise privées
Relations au 1er degré
Entreprises liées au 1er degré
Homme
Femme
Administrateurs
Exécutifs
| Entreprise privées | 12 |
|---|---|
Cia Riograndense de Saneamento (Corsan)
Cia Riograndense de Saneamento (Corsan) Engineering & ConstructionIndustrial Services Provides constructions, operations, exploration and expansion of public drinking water supply and sewage services | Industrial Services |
Cosan SA
 Cosan SA Gas DistributorsUtilities Engages in manufacturing of sugar, ethanol and distributes fuels and natural gas | Utilities |
Alupar Investimento SA
 Alupar Investimento SA Electric UtilitiesUtilities Operates as a holding company with interest in hydro-electric power generation and transmission business | Utilities |
Perfin Administração de Recursos Ltda.
Perfin Administração de Recursos Ltda. Investment ManagersFinance Perfin is an active, fundamental research-intensive manager which aims to provide consistent returns and preserve capital over the long-term, based on fundamental analysis of assets, strict risk controls, transparency in their processes and ethical principles. The firm constructs concentrated, high conviction portfolios based on quantitative and qualitative analysis. They continuously monitor and analyze invested assets and manage risk to identify the optimal relationship between risk and return of each investment. | Finance |
Fundação Escola de Comércio Álvares Penteado
 Fundação Escola de Comércio Álvares Penteado Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Casa dos Ventos Energias Renováveis SA
 Casa dos Ventos Energias Renováveis SA Alternative Power GenerationUtilities Operates renewable energy projects | Utilities |
EDTE - Empresa Diamantina de Transmissao de Energia SA
EDTE - Empresa Diamantina de Transmissao de Energia SA Electric UtilitiesUtilities Provides electric services | Utilities |
TSM - Transmissora Serra da Mantiqueira SA
TSM - Transmissora Serra da Mantiqueira SA Alternative Power GenerationUtilities Provides electric utility services | Utilities |
Perfin Administração de Recursos Ltda. /Private Equity/
Perfin Administração de Recursos Ltda. /Private Equity/ Investment ManagersFinance Functions as an alternative investment manager | Finance |
Mori Energia Holding SA
Mori Energia Holding SA Financial ConglomeratesFinance Functions as an investment holding company | Finance |
Gemini Energy SA
Gemini Energy SA Electric UtilitiesUtilities Operates an energy transmission company | Utilities |
Comerc Participações SA
 Comerc Participações SA Electric UtilitiesUtilities Provides energy solutions | Utilities |
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