“Can a 40-year-old Brazilian accounting ERP evolve into the operating platform for accountants and their SMB clients by embedding payments, banking-integration and tax automation?”
Questor Sistemas is a Brazilian accounting/ERP software company founded in 1985, headquartered in Chapecó (SC). It develops cloud-based accounting systems for accounting offices and tax departments of large corporations, plus ERPs for industrial, wholesale and service businesses. The company claims that 7% of Brazilian private-sector payroll runs through its systems and serves over 6,000 clients across Brazil, with additional offices in Ireland, UK and Angola.
Questor Sistemas processes payments through Stone and Linx (D-TEF).
Questor Sistemas's payroll is powered by Questor Folha (in-house).
Questor Sistemas integrates with Questor Contábil (native), Questor Tributário (native via SYN API), Questor Negócio ERP (native) and Integra Contador API.
The Embedded Finance Index 2026 maps 5 layers in Questor Sistemas's stack: Payments / PSP (Stone and Linx (D-TEF)); Lending (Área de Trabalho Controle de Empréstimos e Financiamentos (loan/financing contract management module for accountants)); Payroll (Questor Folha (in-house)); Accounting (Questor Contábil (native), Questor Tributário (native via SYN API), Questor Negócio ERP (native) and Integra Contador API); Transaction enrichment (Equals).
Questor Sistemas is founded in 1985 and headquartered in Chapecó, Santa Catarina, Brazil.
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